UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

        CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT
                                    COMPANIES


 Investment Company Act file number:                     811-4977

 Exact name of registrant as specified in charter:       Voyageur Insured Funds

 Address of principal executive offices:                 2005 Market Street
                                                         Philadelphia, PA 19103

 Name and address of agent for service:                  David F. Connor, Esq.
                                                         2005 Market Street
                                                         Philadelphia, PA 19103

 Registrant's telephone number, including area code:     (800) 523-1918

 Date of fiscal year end:                                August 31

 Date of reporting period:                               February 28, 2006


Item 1. Reports to Stockholders

     The Registrant's shareholder reports are combined with the shareholder
reports of other investment company registrants. This Form N-CSR pertains to the
DELAWARE TAX-FREE ARIZONA INSURED FUND AND DELAWARE TAX-FREE MINNESOTA INSURED
FUND of the Registrant, information on which is included in the following
shareholder reports.



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                                                  [DELAWARE INVESTMENTS(R) LOGO]
FIXED INCOME

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Semiannual Report FEBRUARY 28, 2006
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                                   DELAWARE TAX-FREE ARIZONA INSURED FUND

                                   DELAWARE TAX-FREE CALIFORNIA FUND

                                   DELAWARE TAX-FREE COLORADO FUND

[POWERED BY RESEARCH(R) LOGO]



Table
   OF CONTENTS

- ------------------------------------------------------------
DISCLOSURE OF FUND EXPENSES                              1
- ------------------------------------------------------------
SECTOR ALLOCATIONS                                       2
- ------------------------------------------------------------
FINANCIAL STATEMENTS:

   Statements of Net Assets                              4

   Statements of Operations                             13

   Statements of Changes in Net Assets                  14

   Financial Highlights                                 15

   Notes to Financial Statements                        24

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ABOUT THE ORGANIZATION                                  30
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Funds are not FDIC insured and are not guaranteed. It is possible to lose the
principal amount invested.

Mutual fund advisory services provided by Delaware Management Company, a series
of Delaware Management Business Trust, which is a registered investment advisor.

(C)2006 Delaware Distributors, L.P.



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Disclosure                 For the Period September 1, 2005 to February 28, 2006
- --------------------------------------------------------------------------------
   OF FUND EXPENSES

As a shareholder of a Fund, you incur two types of costs: (1) transaction costs,
including sales charges (loads) on purchase payments, reinvested dividends, or
other distributions; redemption fees; and exchange fees; and (2) ongoing costs,
including management fees; distribution and/or service (12b-1) fees; and other
Fund expenses. The following examples are intended to help you understand your
ongoing costs (in dollars) of investing in a Fund and to compare these costs
with the ongoing costs of investing in other mutual funds.

The examples are based on an investment of $1,000 invested at the beginning of
the period and held for the entire period September 1, 2005 to February 28,
2006.

Actual Expenses

The first section of the tables shown, "Actual Fund Return," provides
information about actual account values and actual expenses. You may use the
information in this section of the table, together with the amount you invested,
to estimate the expenses that you paid over the period. Simply divide your
account value by $1,000 (for example, an $8,600 account value divided by $1,000
= 8.6), then multiply the result by the number in the first section under the
heading entitled "Expenses Paid During Period" to estimate the expenses you paid
on your account during this period.

Hypothetical Example for Comparison Purposes

The second section of the tables shown, "Hypothetical 5% Return," provides
information about hypothetical account values and hypothetical expenses based on
the Funds' actual expense ratio and an assumed rate of return of 5% per year
before expenses, which is not the Funds' actual return. The hypothetical account
values and expenses may not be used to estimate the actual ending account
balance or expenses you paid for the period. You may use this information to
compare the ongoing costs of investing in a Fund and other funds. To do so,
compare this 5% hypothetical example with the 5% hypothetical examples that
appear in the shareholder reports of the other funds.

Please note that the expenses shown in the tables are meant to highlight your
ongoing costs only and do not reflect any transactional costs, such as sales
charges (loads), redemption fees, or exchange fees. Therefore, the second
section of each table is useful in comparing ongoing costs only, and will not
help you determine the relative total costs of owning different funds. In
addition, if these transactional costs were included, your costs would have been
higher. Each Fund's actual expenses shown in the tables reflect fee waivers in
effect. The expenses shown in each table assume reinvestment of all dividends
and distributions. "Expenses Paid During Period" are equal to the Fund's
annualized expense ratio, multiplied by the average account value over the
period, multiplied by 181/365 (to reflect the one-half year period).

Delaware Tax-Free Arizona Insured Fund
Expense Analysis of an Investment of $1,000



                                                                                             Expenses
                                                      Beginning     Ending                  Paid During
                                                       Account      Account    Annualized     Period
                                                        Value        Value      Expense      9/1/05 to
                                                       9/1/05       2/28/06      Ratio        2/28/06
- -------------------------------------------------------------------------------------------------------
                                                                                
Actual Fund Return
Class A                                              $ 1,000.00   $ 1,006.40      0.77%     $   3.83
Class B                                                1,000.00     1,002.60      1.52%         7.55
Class C                                                1,000.00     1,003.50      1.52%         7.55
- -------------------------------------------------------------------------------------------------------
Hypothetical 5% Return (5% return before expenses)
Class A                                              $ 1,000.00   $ 1,020.98      0.77%     $   3.86
Class B                                                1,000.00     1,017.26      1.52%         7.60
Class C                                                1,000.00     1,017.26      1.52%         7.60
- -------------------------------------------------------------------------------------------------------


Delaware Tax-Free California Fund
Expense Analysis of an Investment of $1,000



                                                                                             Expenses
                                                      Beginning     Ending                  Paid During
                                                       Account      Account    Annualized     Period
                                                        Value        Value      Expense      9/1/05 to
                                                       9/1/05       2/28/06      Ratio        2/28/06
- -------------------------------------------------------------------------------------------------------
                                                                                
Actual Fund Return
Class A                                              $ 1,000.00   $ 1,011.80      0.88%     $   4.39
Class B                                                1,000.00     1,008.00      1.63%         8.12
Class C                                                1,000.00     1,008.00      1.63%         8.12
- -------------------------------------------------------------------------------------------------------
Hypothetical 5% Return (5% return before expenses)
Class A                                              $ 1,000.00   $ 1,020.43      0.88%     $   4.41
Class B                                                1,000.00     1,016.71      1.63%         8.15
Class C                                                1,000.00     1,016.71      1.63%         8.15
- -------------------------------------------------------------------------------------------------------


Delaware Tax-Free Colorado Fund
Expense Analysis of an Investment of $1,000



                                                                                             Expenses
                                                      Beginning     Ending                  Paid During
                                                       Account      Account    Annualized     Period
                                                        Value        Value      Expense      9/1/05 to
                                                       9/1/05       2/28/06      Ratio        2/28/06
- -------------------------------------------------------------------------------------------------------
                                                                                
Actual Fund Return
Class A                                              $ 1,000.00   $ 1,011.20      0.93%     $   4.64
Class B                                                1,000.00     1,008.30      1.68%         8.37
Class C                                                1,000.00     1,008.30      1.68%         8.37
- -------------------------------------------------------------------------------------------------------
Hypothetical 5% Return (5% return before expenses)
Class A                                              $ 1,000.00   $ 1,020.18      0.93%     $   4.66
Class B                                                1,000.00     1,016.46      1.68%         8.40
Class C                                                1,000.00     1,016.46      1.68%         8.40
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                                        1



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Sector Allocations                                       As of February 28, 2006
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Sector designations may be different than the sector designations presented in
other Fund materials.

DELAWARE TAX-FREE ARIZONA INSURED FUND

                                                    Percentage
Sector                                             of Net Assets
- ----------------------------------------------------------------
Municipal Bonds                                        98.29%
- ----------------------------------------------------------------
Airport Revenue Bonds                                  10.68%
Continuing Care/Retirement Revenue Bonds                0.64%
Convention Center/Auditorium/Hotel Revenue Bonds        3.38%
Dedicated Tax & Fees Revenue Bonds                      1.48%
Electric & Gas Revenue Bonds                            9.26%
Escrowed to Maturity Bonds                              0.30%
Higher Education Revenue Bonds                          8.37%
Hospital Revenue Bonds                                  6.32%
Multifamily Housing Revenue Bonds                       5.15%
Municipal Lease Revenue Bonds                          12.41%
Political Subdivision General Obligation Bonds          2.26%
Pre-Refunded Bonds                                     25.49%
School District General Obligation Bonds                2.29%
Single Family Housing Revenue Bonds                     0.11%
Territorial General Obligation Bonds                    4.07%
Transportation Revenue Bonds                            0.67%
Water & Sewer Revenue Bonds                             5.41%
- ----------------------------------------------------------------
Short-Term Investments                                  0.73%
- ----------------------------------------------------------------
Total Market Value of Securities                       99.02%
- ----------------------------------------------------------------
Receivables and Other Assets Net of Liabilities         0.98%
- ----------------------------------------------------------------
Total Net Assets                                      100.00%
- ----------------------------------------------------------------

DELAWARE TAX-FREE CALIFORNIA FUND
                                                    Percentage
Sector                                             of Net Assets
- ----------------------------------------------------------------
Municipal Bonds                                        94.23%
- ----------------------------------------------------------------
Airport Revenue Bonds                                   2.11%
Continuing Care/Retirement Revenue Bonds                4.27%
Dedicated Tax & Fees Revenue Bonds                      8.24%
Electric & Gas Revenue Bonds                            2.21%
Higher Education Revenue Bonds                          9.69%
Hospital Revenue Bonds                                  5.65%
Multifamily Housing Revenue Bonds                       7.93%
Municipal Lease Revenue Bonds                           8.43%
Parking Revenue Bonds                                   1.07%
Ports & Harbors Revenue Bonds                           2.19%
Pre-Refunded Bonds                                      8.20%
Primary Education Revenue Bonds                         1.11%
Resource Recovery Revenue Bonds                         4.28%
School District General Obligation Bonds                5.99%
State General Obligation Bonds                          6.70%
Tax Increment/Special Assessment Bonds                 10.77%
Water & Sewer Revenue Bonds                             5.39%
- ----------------------------------------------------------------
Short-Term Investments                                  5.35%
- ----------------------------------------------------------------
Money Market Instruments                                2.08%

Variable Rate Demand Notes                              3.27%
- ----------------------------------------------------------------
Total Market Value of Securities                       99.58%
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Receivables and Other Assets Net of Liabilities         0.42%
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Total Net Assets                                      100.00%
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                                        2



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Sector Allocations (CONTINUED)                           As of February 28, 2006
- --------------------------------------------------------------------------------

Sector designations may be different than the sector designations presented in
other Fund materials.

DELAWARE TAX-FREE COLORADO FUND

                                                    Percentage
Sector                                             of Net Assets
- ----------------------------------------------------------------
Municipal Bonds                                        98.22%
- ----------------------------------------------------------------
Airport Revenue Bonds                                   4.48%
Charter School Revenue Bonds                            7.57%
Combined Utility Revenue Bonds                          1.82%
Continuing Care/Retirement Revenue Bonds                5.58%
Dedicated Tax & Fees Revenue Bonds                      1.03%
Electric & Gas Revenue Bonds                            0.37%
Escrowed to Maturity Bonds                              2.23%
Higher Education Revenue Bonds                         10.26%
Hospital Revenue Bonds                                  8.63%
Library/Museum Revenue Bonds                            0.74%
Multifamily Housing Revenue Bonds                       6.23%
Municipal Lease Revenue Bonds                           3.39%
Political Subdivision General Obligation Bonds         10.63%
Pre-Refunded Bonds                                     14.52%
Recreational Area Revenue Bonds                         1.20%
School District General Obligation Bonds                5.12%
Tax Increment/Special Assessment Bonds                  5.03%
Territorial General Obligation Bonds                    2.23%
Turnpike/Toll Road Revenue Bonds                        5.42%
Water & Sewer Revenue Bonds                             1.74%
- ----------------------------------------------------------------
Short-Term Investments                                  0.52%
- ----------------------------------------------------------------
Total Market Value of Securities                       98.74%
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Receivables and Other Assets Net of Liabilities         1.26%
- ----------------------------------------------------------------
Total Net Assets                                      100.00%
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                                        3



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                                          Delaware Tax-Free Arizona Insured Fund
Statements                                February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF NET ASSETS

                                                     Principal       Market
                                                      Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds - 98.29%
- --------------------------------------------------------------------------------
Airport Revenue Bonds - 10.68%
   Phoenix Civic Improvement Corporation
      Airport Revenue Series B
      5.25% 7/1/27 (FGIC) (AMT)                     $ 1,000,000   $   1,045,410
      5.25% 7/1/32 (FGIC) (AMT)                      10,300,000      10,741,664
   Tucson Airport Authority
      5.35% 6/1/31 (AMBAC) (AMT)                      5,000,000       5,210,450
                                                                  -------------
                                                                     16,997,524
                                                                  -------------
Continuing Care/Retirement Revenue Bonds - 0.64%
   Maricopa County Industrial Development
      Authority Senior Living Healthcare Revenue
      5.00% 8/20/35 (GNMA)                            1,000,000       1,020,630
                                                                  -------------
                                                                      1,020,630
                                                                  -------------
Convention Center/Auditorium/Hotel Revenue Bonds - 3.38%
   Arizona Tourism & Sports Authority Tax
      Revenue Multipurpose Stadium
      Facilities Series A
      5.00% 7/1/28 (MBIA)                             2,500,000       2,624,300
      5.00% 7/1/31 (MBIA)                             1,500,000       1,572,645
   Phoenix Civic Improvement Corporation
      Distribution Revenue (Civic Plaza)
      Series B 5.50% 7/1/31 (FGIC)                    1,500,000       1,189,425
                                                                  -------------
                                                                      5,386,370
                                                                  -------------
Dedicated Tax & Fees Revenue Bonds - 1.48%
   Puerto Rico Commonwealth Highway &
      Transportation Authority Revenue
      Series K 5.00% 7/1/35                             750,000         774,833
   San Luis Civic Improvement Corporation
      Municipal Facilities Excise Tax Revenue
      5.00% 7/1/38 (XLCA)                             1,500,000       1,573,515
                                                                  -------------
                                                                      2,348,348
                                                                  -------------
Electric & Gas Revenue Bonds - 9.26%
   Energy Management Services
      (Arizona State University - Main Campus)
      5.25% 7/1/17 (MBIA)                             1,500,000       1,619,280
   Maricopa County Pollution Control
      (Palo Verde Project) Series A
      5.05% 5/1/29 (AMBAC)                            6,000,000       6,254,460
   Puerto Rico Electric Power
      Authority Revenue
      Series NN 5.00% 7/1/32 (MBIA)                   2,500,000       2,630,750
      Series OO 5.00% 7/1/13 (CIFG)                   1,500,000       1,624,800
   Salt River Project Agricultural
      Improvement & Power District
      Electric System Revenue
      (Salt River Project)
      Series A 5.00% 1/1/31                             500,000         522,185
      Series B 5.00% 1/1/31 (MBIA)                    2,000,000       2,088,740
                                                                  -------------
                                                                     14,740,215
                                                                  -------------

                                                     Principal       Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Escrowed to Maturity Bonds - 0.30%
   Maricopa County School District #14
      (Creighton School Improvement Project)
      Series C 6.50% 7/1/08 (FGIC)                  $   455,000   $     486,095
                                                                  -------------
                                                                        486,095
                                                                  -------------
Higher Education Revenue Bonds - 8.37%
   Arizona State Board of Regents
      (Northern Arizona University)
      5.00% 6/1/34 (FGIC)                             1,000,000       1,037,710
      5.50% 6/1/34 (FGIC)                             1,250,000       1,376,525
   Certificates of Participation
      (University of Arizona Main Campus)
      Series 2000 A1 5.125% 6/1/25 (AMBAC)            1,250,000       1,322,825
   Arizona State University
      Certificates of Participation
      (Research Infrastructure Project)
      5.00% 9/1/30 (AMBAC)                            3,000,000       3,149,400
   Glendale Industrial Development
      Authority Revenue (Midwestern University)
      Series A 5.875% 5/15/31                         1,000,000       1,071,360
   Mohave County Community
      College District Revenue
      (State Board of Directors)
      6.00% 3/1/20 (MBIA)                             1,000,000       1,088,910
   South Campus Group Student
      Housing Revenue (Arizona State
      University South Campus Project)
      5.625% 9/1/35 (MBIA)                            1,000,000       1,105,040
   Tucson Industrial Development Authority
      (University of Arizona-Marshall Foundation)
      Series A 5.00% 7/15/27 (AMBAC)                  1,000,000       1,042,900
   University of Arizona
      Certificates of Participation
      (University of Arizona Project)
      Series A 5.125% 6/1/21 (AMBAC)                  1,000,000       1,062,360
      Series B 5.125% 6/1/22 (AMBAC)                  1,000,000       1,062,360
                                                                  -------------
                                                                     13,319,390
                                                                  -------------
Hospital Revenue Bonds - 6.32%
   Glendale Industrial Development
      Authority Hospital Revenue
      5.00% 12/1/35                                   1,000,000       1,004,910
   Maricopa County Industrial Development
      Authority Health Facilities Revenue
      (Catholic Healthcare West)
      Series A 5.50% 7/1/26                           1,000,000       1,060,630
   Mohave County Industrial
      Development Authority
      (Chris Ridge & Silver)
      6.375% 11/1/31 (GNMA)                             185,000         191,179
   Phoenix Industrial Development
      Authority Hospital Revenue
      (John C. Lincoln Health)
      Series B 5.75% 12/1/16 (Connie Lee)             4,110,000       4,323,556
   Scottsdale Industrial Development
      Authority Hospital Revenue
      (Scottsdale Healthcare)
      5.70% 12/1/21                                     500,000         539,965

                                        4



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                                          Delaware Tax-Free Arizona Insured Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal       Market
                                                      Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Hospital Revenue Bonds (continued)
   University Medical Center Hospital Revenue
      5.00% 7/1/24                                  $   800,000   $     819,960
   Yavapai County Industrial Development
      Authority Revenue
      (Yavapai Regional Medical Center)
      5.25% 8/1/21 (RADIAN)                           2,000,000       2,111,800
                                                                  -------------
                                                                     10,052,000
                                                                  -------------
Multifamily Housing Revenue Bonds - 5.15%
  Phoenix Industrial Development
      Authority Multifamily Housing Revenue
      (Capital Mews Apartments)
      Series A 5.70% 12/20/40 (GNMA) (AMT)            2,000,000       2,091,560
      (Ventana Palms Apartments) Series A
      6.15% 10/1/29 (MBIA)                              510,000         540,524
      6.20% 10/1/34 (MBIA)                              940,000         997,143
   Yuma Industrial Development
      Authority Multifamily Revenue
      (Regency Apartments) Series A
      5.50% 12/20/32 (GNMA) (FHA)                     2,000,000       2,004,920
      6.10% 9/20/19 (GNMA) (AMT)                      2,340,000       2,561,644
                                                                  -------------
                                                                      8,195,791
                                                                  -------------
Municipal Lease Revenue Bonds - 12.41%
   Arizona Agricultural Improvement &
      Power District Certificates of Participation
      (Salt River Project)
      5.00% 12/1/18 (MBIA)                            2,500,000       2,659,175
   Arizona School Facilities Board
      Certificates of Participation
      Series A 5.00% 9/1/18 (FGIC)                    1,000,000       1,070,400
   Greater Arizona Development
      Authority Infrastructure Revenue
      Series A 5.00% 8/1/22 (MBIA)                      500,000         535,880
   Marana Municipal Property
      Corporation Municipal Facilities Revenue
      5.00% 7/1/28 (AMBAC)                              575,000         601,738
   Maricopa County Industrial
      Development Authority Correctional
      Contract Facilities
      (Phoenix West Prison)
      5.375% 7/1/22 (ACA)                             1,000,000       1,048,030
   Phoenix Industrial Development Authority
      Government Office Lease Revenue
      (Capitol Mall LLC Project)
      5.00% 9/15/27 (AMBAC)                           1,000,000       1,054,720
      5.00% 9/15/28 (AMBAC)                           4,000,000       4,153,000
   Pinal County Certificates of Participation
      5.125% 6/1/21 (AMBAC)                           4,675,000       4,965,784
   Puerto Rico Public Buildings
      Authority Revenue
      (Guaranteed Government Facilities)
      Series D 5.25% 7/1/27                             470,000         494,261
      Series D 5.25% 7/1/36                             270,000         283,630
      Series I 5.25% 7/1/33                             500,000         532,250
   University of Arizona
      Certificates of Participation
      Series B 5.00% 6/1/31 (AMBAC)                   2,250,000       2,346,458
                                                                  -------------
                                                                     19,745,326
                                                                  -------------

                                                     Principal       Market
                                                      Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Political Subdivision General Obligation Bonds - 2.26%
   DC Ranch Community Facilities
      5.00% 7/15/27 (AMBAC)                         $ 1,000,000   $   1,050,600
   Phoenix Variable Purpose Series B
      5.00% 7/1/27                                    2,435,000       2,543,017
                                                                  -------------
                                                                      3,593,617
                                                                  -------------
- -/-Pre-Refunded Bonds - 25.49%
   Arizona State Transportation Board
      Highway Revenue Series B
      5.25% 7/1/22-12                                 1,000,000       1,091,870
   Eagle Mountain Community Facility
      District Revenue Series A
      6.50% 7/1/21-06                                 1,010,000       1,030,877
   Glendale Industrial Development
      Authority Educational Facilities Revenue
      (American Graduate School International)
      5.625% 7/1/20-06 (Connie Lee)                   1,000,000       1,017,730
      5.875% 7/1/15-06 (Connie Lee)                   2,500,000       2,546,425
   Maricopa County School District #3
      (Tempe Elementary Project of 1997)
      Series E 5.70% 7/1/16-09 (FGIC)                 1,025,000       1,105,791
   Mesa Industrial Development Authority
      (Discovery Health Systems) Series A
      5.625% 1/1/29-10 (MBIA)                        10,000,000      10,801,499
   Phoenix Industrial Development
      Authority Lease Revenue
      (Capitol Mall LLC Project)
      5.50% 9/15/27-10 (AMBAC)                        5,000,000       5,401,000
   Puerto Rico Commonwealth
      Public Improvement Revenue
      5.125% 7/1/30-11 (FSA)                            770,000         829,475
      Series A 5.00% 7/1/27-12                        1,000,000       1,080,170
      Series A 5.125% 7/1/31-11                       1,705,000       1,836,694
   Puerto Rico Public Buildings Authority
      Guaranteed Government Facilities
      Revenue Series D
      5.25% 7/1/36-12                                   730,000         792,327
      5.25% 7/1/27-12                                 1,280,000       1,389,286
   Phoenix Street & Highway Revenue
      6.50% 7/1/09-02 (AMBAC)                           350,000         351,197
   Sedona Certificates of Participation
      5.75% 7/1/16-09                                   500,000         539,370
   Southern Arizona Capital Facilities Finance
      (University of Arizona Project)
      5.10% 9/1/33-12 (MBIA)                          3,250,000       3,526,283
   Surprise Municipal Property
      Excise Tax Revenue
      5.70% 7/1/20-09 (FGIC)                          5,000,000       5,394,100
   University of Arizona
      Certificates of Participation
      (University of Arizona Parking
      & Student Housing)
      5.75% 6/1/19-09 (AMBAC)                         1,000,000       1,069,870
   Yuma Industrial Development
      Authority Hospital Revenue
      (Yuma Regional Medical Center)
      5.00% 8/1/31-11 (FSA)                             700,000         752,290
                                                                  -------------
                                                                     40,556,254
                                                                  -------------

                                        5



- --------------------------------------------------------------------------------
                                          Delaware Tax-Free Arizona Insured Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal       Market
                                                      Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
School District General Obligation Bonds - 2.29%
   Cochise County Unified School
      District #68 7.50% 7/1/10 (FGIC)              $ 1,000,000   $   1,155,830
   Maricopa County School District #14
      (Creighton School Improvement
      Project of 1990)
      Series C 6.50% 7/1/08 (FGIC)                      545,000         581,738
   Maricopa County School District #38
      (Madison Elementary)
      5.00% 7/1/14 (FSA)                              1,750,000       1,903,405
                                                                  -------------
                                                                      3,640,973
                                                                  -------------
Single Family Housing Revenue Bonds - 0.11%
   Pima County Industrial Development
      Authority Single Family Housing Revenue
      Series A-1 6.125% 11/1/33
      (GNMA) (FNMA) (FHLMC) (AMT)                        55,000          55,233
      Series B-1 6.10% 5/1/31 (GNMA) (AMT)              115,000         115,469
                                                                  -------------
                                                                        170,702
                                                                  -------------
Territorial General Obligation Bonds - 4.07%
   Puerto Rico Commonwealth
      Public Improvements Refunding
      Series A 5.50% 7/1/19                           1,300,000       1,469,065
   Puerto Rico Commonwealth
      Public Improvement
      (Unrefunded Balance) Series A
      5.125% 7/1/30 (FSA)                               480,000         509,510
      5.125% 7/1/31                                   3,370,000       3,467,191
   Virgin Islands Public Finance
      Authority Revenue
      (Gross Receipts Taxes)
      5.00% 10/1/31 (ACA)                             1,000,000       1,027,730
                                                                  -------------
                                                                      6,473,496
                                                                  -------------
Transportation Revenue Bonds - 0.67%
   Arizona State Transportation
      Board Highway Revenue Series A
      5.00% 7/1/23                                    1,000,000       1,064,080
                                                                  -------------
                                                                      1,064,080
                                                                  -------------
Water & Sewer Revenue Bonds - 5.41%
   Gilbert Water Resource Municipal
      Property Corporation Wastewater
      System & Utility Revenue
      4.90% 4/1/19                                    1,500,000       1,512,450
   Glendale Water & Sewer Revenue
      5.00% 7/1/28 (AMBAC)                            2,000,000       2,099,440
   Phoenix Civic Improvement Corporation
      Wastewater Systems Revenue Junior Lien
      5.00% 7/1/24 (FGIC)                             1,000,000       1,056,480
      5.00% 7/1/26 (FGIC)                             3,750,000       3,933,375
                                                                  -------------
                                                                      8,601,745
                                                                  -------------

Total Municipal Bonds (cost $147,940,313)                           156,392,556
                                                                  -------------

                                                     Number of       Market
                                                      Shares         Value
- --------------------------------------------------------------------------------
Short-Term Investments - 0.73%
- --------------------------------------------------------------------------------
Money Market Instruments - 0.73%
   Federated Arizona Municipal Cash Trust             1,153,903   $   1,153,903
                                                                  -------------

Total Short-Term Investments
   (cost $1,153,903)                                                  1,153,903
                                                                  -------------

Total Market Value of Securities - 99.02%
   (cost $149,094,216)                                              157,546,459
Receivables and Other Assets
   Net of Liabilities - 0.98%                                         1,567,011
                                                                  -------------

Net Assets Applicable to 13,949,251 Shares
   Outstanding - 100.00%                                          $ 159,113,470
                                                                  =============

Net Asset Value - Delaware Tax-Free Arizona Insured Fund
   Class A ($132,879,926 / 11,651,711 Shares)                     $       11.40
                                                                  -------------

Net Asset Value - Delaware Tax-Free Arizona Insured Fund
   Class B ($17,822,544 / 1,561,658 Shares)                       $       11.41
                                                                  -------------

Net Asset Value - Delaware Tax-Free Arizona Insured Fund
   Class C ($8,411,000 / 735,882 Shares)                          $       11.43
                                                                  -------------

Components of Net Assets at February 28, 2006:
Shares of beneficial interest
   (unlimited authorization - no par)                             $ 153,572,016
Distributions in excess of net investment income                        (20,294)
Accumulated net realized loss on investments                         (2,890,495)
Net unrealized appreciation of investments                            8,452,243
                                                                  -------------
Total net assets                                                  $ 159,113,470
                                                                  =============

- -/-   Pre-Refunded Bonds. Municipals that are generally backed or secured by
      U.S. Treasury bonds. For pre-refunded bonds, the stated maturity is
      followed by the year in which the bond is pre-refunded. See Note 8 in
      "Notes to Financial Statements."

Summary of Abbreviations:
ACA - Insured by American Capital Access
AMBAC - Insured by the AMBAC Assurance Corporation
AMT - Subject to Alternative Minimum Tax
CIFG - CDC IXIS Financial Guaranty
Connie Lee - Insured by the College Construction Insurance Association
FGIC - Insured by the Financial Guaranty Insurance Company
FHA - Insured by the Federal Housing Administration
FHLMC - Insured by the Federal Home Loan Mortgage Corporation
FNMA - Insured by Federal National Mortgage Association
FSA - Insured by Financial Security Assurance
GNMA - Insured by Government National Mortgage Association
MBIA - Insured by the Municipal Bond Insurance Association
RADIAN - Insured by Radian Asset Assurance
XLCA - Insured by XL Capital Insurance

Net Asset Value and Offering Price per Share -
   Delaware Tax-Free Arizona Insured Fund
Net asset value Class A (A)                                       $       11.40
Sales charge (4.50% of offering price) (B)                                 0.54
                                                                  -------------
Offering price                                                    $       11.94
                                                                  =============

(A)   Net asset value per share, as illustrated, is the amount which would be
      paid upon redemption or repurchase of shares.

(B)   See the current prospectus for purchases of $100,000 or more.

See accompanying notes

                                        6



- --------------------------------------------------------------------------------
                                               Delaware Tax-Free California Fund
Statements                                     February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                       Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds - 94.23%
- --------------------------------------------------------------------------------
Airport Revenue Bonds - 2.11%
   Sacramento County Airport System
      Revenue Series A 5.00% 7/1/32 (FSA)           $ 1,000,000   $   1,035,630
   San Jose Airport Revenue
      Series A 5.00% 3/1/31 (FGIC)                    1,000,000       1,029,650
                                                                  -------------
                                                                      2,065,280
                                                                  -------------
Continuing Care/Retirement Revenue Bonds - 4.27%
   Abag Finance Authority of California
      (Nonprofit Corporations -
      Lincoln Glen Manor)
      6.10% 2/15/25 (RADIAN)                          2,000,000       2,107,560
   California Health Facilities
      Financing Authority Revenue
      (The Episcopal Home) Series A
      5.30% 2/1/32 (RADIAN)                           2,000,000       2,079,480
                                                                  -------------
                                                                      4,187,040
                                                                  -------------
Dedicated Tax & Fees Revenue Bonds - 8.24%
   Palm Drive Health Care District
      Parcel Tax Revenue 5.25% 4/1/30                 2,000,000       2,096,380
   Poway Unified School District
      Community Facilities District #6
      5.60% 9/1/33                                    1,000,000       1,031,730
   Puerto Rico Commonwealth Highway &
      Transportation Authority Revenue
      Series K 5.00% 7/1/35                           1,750,000       1,807,943
   San Bernardino County Special Tax
      Community Facilities District #2002-1
      5.90% 9/1/33                                    2,000,000       2,097,360
   San Francisco Bay Area Rapid Transit
      District Sales Tax Revenue
      5.125% 7/1/36 (AMBAC)                           1,000,000       1,040,150
                                                                  -------------
                                                                      8,073,563
                                                                  -------------
Electric & Gas Revenue Bonds - 2.21%
   Puerto Rico Electric Power Authority
      Revenue Series OO
      5.00% 7/1/13 (CIFG)                             2,000,000       2,166,400
                                                                  -------------
                                                                      2,166,400
                                                                  -------------
Higher Education Revenue Bonds - 9.69%
   California Educational Facilities
      Authority Revenue
      (University of the Pacific)
      5.25% 5/1/34                                    1,000,000       1,056,030
      5.75% 11/1/30 (MBIA)                            1,000,000       1,090,120
      (Woodbury University)
      5.00% 1/1/36                                    1,000,000       1,006,680
   California Public Works Board
      Lease Revenue
      (Various University of California Projects)
      Series D 5.00% 5/1/30                           1,000,000       1,045,220
      Series F 5.00% 11/1/29                          1,000,000       1,042,450
   California State University
      Systemwide Revenue Series A
      5.25% 11/1/20 (FSA)                             1,000,000       1,099,320
   California Statewide Communities
      Development Authority Student Revenue
      (East Campus Apartments, LLC)
      Series A 5.625% 8/1/34 (ACA)                    1,000,000       1,056,930

                                                     Principal        Market
                                                       Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Higher Education Revenue Bonds (continued)
   San Diego County Certificates of
      Participation (University of San Diego)
      5.375% 10/1/41                                $ 1,000,000   $   1,044,400
   University of California Revenue
      5.00% 5/15/33 (FSA)                             1,000,000       1,049,000
                                                                  -------------
                                                                      9,490,150
                                                                  -------------
Hospital Revenue Bonds - 5.65%
   Abag Finance Authority of California
      (Nonprofit Corporations - San Diego
      Hospital Association)
      Series A 6.125% 8/15/20                         1,250,000       1,360,212
   California Health Facilities Financing
      Authority Revenue
      (Catholic Healthcare West)
      Series G 5.25% 7/1/23                           1,000,000       1,060,540
   California Infrastructure & Economic
      Development Bank Revenue
      (Kaiser Hospital Associates I, LLC)
      Series A 5.55% 8/1/31                           1,000,000       1,065,360
   California Statewide Community
      Development Authority Revenue
      (Health Facilities - Adventist Health)
      Series A 5.00% 3/1/35                           2,000,000       2,045,860
                                                                  -------------
                                                                      5,531,972
                                                                  -------------
Multifamily Housing Revenue Bonds - 7.93%
   California Statewide Communities
      Development Authority Multifamily
      Housing Revenue
      (Citrus Gardens Apartments)
      Series D1 5.375% 7/1/32                         1,800,000       1,858,464
      (Silver Ridge Apartments)
      Series H 5.80% 8/1/33 (AMT) (FNMA)              1,000,000       1,068,070
      (Village East Tabor Apartments)
      Series C 6.85% 8/20/36 (GNMA) (AMT)             1,500,000       1,600,350
   Palm Springs Mobile Home Park Revenue
      (Sahara Mobile Home Park)
      Series A 5.75% 5/15/37                          1,000,000       1,069,730
   Santa Clara County Housing Authority
      Multifamily Housing Revenue
      (Rivertown Apartments Project)
      Series A 5.85% 8/1/31 (AMT)                     1,000,000       1,035,410
   Ventura County Area Housing Authority
      Multifamily Housing Revenue
      (Glen Oaks Apartments)
      Series A 6.35% 7/20/34 (GNMA)                   1,001,000       1,139,929
                                                                  -------------
                                                                      7,771,953
                                                                  -------------
Municipal Lease Revenue Bonds - 8.43%
   California State Public Works
      Board Lease Revenue
      (Department of Corrections)
      Series A 5.00% 3/1/27 (AMBAC)                   1,000,000       1,041,820
      Series C 5.25% 6/1/28                           1,500,000       1,583,235
      (Department of General
      Services-Butterfield)
      Series A 5.25% 6/1/30                           1,000,000       1,065,170

                                        7



- --------------------------------------------------------------------------------
                                               Delaware Tax-Free California Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Municipal Lease Revenue Bonds (continued)
   Franklin-McKinley School District
      Certificates of Participation
      (Financing Project)
      Series B 5.00% 9/1/27 (AMBAC)                 $ 1,060,000   $   1,109,608
   Sacramento City Financing Authority
      Revenue 5.00% 12/1/29 (FGIC)                    1,250,000       1,317,525
   San Diego County Certificates of
      Participation 5.75% 7/1/31 (MBIA)               1,000,000       1,100,020
   San Juan Basin Authority
      (Ground Water Recovery Project)
      5.00% 12/1/34 (AMBAC)                           1,000,000       1,039,190
                                                                  -------------
                                                                      8,256,568
                                                                  -------------
Parking Revenue Bonds - 1.07%
   San Diego Redevelopment Agency
      (Centre City Redevelopment Project)
      Series A 6.40% 9/1/25                           1,000,000       1,049,890
                                                                  -------------
                                                                      1,049,890
                                                                  -------------
Ports & Harbors Revenue Bonds - 2.19%
   Port of Oakland Revenue
      Series K 5.75% 11/1/29 (FGIC) (AMT)             1,000,000       1,069,190
      Series L 5.375% 11/1/27 (FGIC) (AMT)            1,000,000       1,072,830
                                                                  -------------
                                                                      2,142,020
                                                                  -------------
- -/-Pre-Refunded Bonds - 8.20%
   California Educational Facilities
      Authority Revenue (Pepperdine University)
      Series A 5.50% 8/1/32-09                        1,000,000       1,069,930
   California State Department Water
      Resources Power Supply Revenue
      Series A 5.375% 5/1/21-12                       2,000,000       2,215,860
   Golden State Tobacco
      Securitization Corporation
      5.50% 6/1/43-13 (RADIAN)                        1,000,000       1,109,440
      5.625% 6/1/33-13                                1,000,000       1,117,310
   Oakland Industrial Revenue
      (Harrison Foundation)
      Series B 6.00% 1/1/29-10 (AMBAC)                1,300,000       1,426,347
   San Diego County
      Certificates of Participation
      (The Burnham Institute)
      6.25% 9/1/29-09                                 1,000,000       1,096,430
                                                                  -------------
                                                                      8,035,317
                                                                  -------------
Primary Education Revenue Bonds - 1.11%
   California Statewide Communities
      Development Authority Revenue
      (Viewpoint School Project)
      5.75% 10/1/33 (ACA)                             1,000,000       1,086,360
                                                                  -------------
                                                                      1,086,360
                                                                  -------------
Resource Recovery Revenue Bonds - 4.28%
   Salinas Valley Solid Waste Authority Revenue
   5.25% 8/1/27 (AMBAC) (AMT)                         2,000,000       2,097,020
   5.25% 8/1/31 (AMBAC) (AMT)                         2,000,000       2,090,200
                                                                  -------------
                                                                      4,187,220
                                                                  -------------

                                                     Principal        Market
                                                       Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
School District General Obligation Bonds - 5.99%
   Beverly Hills Unified School
      District Election 2002 Series B
      5.00% 8/1/30                                  $ 1,000,000   $   1,058,110
   Fairfield-Suisun Unified School
      District Election 2002
      5.50% 8/1/28 (MBIA)                               500,000         553,745
   Lawndale Elementary School District
      5.00% 8/1/32 (FSA)                              1,000,000       1,040,500
   San Diego Unified School District
      5.00% 7/1/28 (FSA)                              2,000,000       2,157,060
   Sequoia Unified High School
      District Election 2001
      5.125% 7/1/31 (FSA)                             1,000,000       1,054,950
                                                                  -------------
                                                                      5,864,365
                                                                  -------------
State General Obligation Bonds - 6.70%
   California State
      5.00% 2/1/26 (AMBAC)                            1,500,000       1,565,925
      5.00% 2/1/33                                    1,000,000       1,034,670
      5.50% 11/1/33                                   2,000,000       2,210,800
   California State Veterans Series B
      5.70% 12/1/32 (AMT)                               640,000         658,310
   Puerto Rico Public Buildings
      Authority Revenue
      (Guaranteed Government Facilities)
      Series I 5.50% 7/1/23                           1,000,000       1,096,530
                                                                  -------------
                                                                      6,566,235
                                                                  -------------
Tax Increment/Special Assessment Bonds - 10.77%
   Commerce Joint Powers Financing Authority
      Revenue (Redevelopment Projects)
      Series A 5.00% 8/1/28 (RADIAN)                  1,000,000       1,026,150
   Culver City Redevelopment Agency
      (Tax Allocation Redevelopment Project)
      Series A 5.00% 11/1/25 (AMBAC)                  1,000,000       1,059,470
   Fremont Community Facilities District #1
      (Special Tax Pacific Commons)
      5.375% 9/1/36                                   1,000,000       1,014,120
   La Quinta Redevelopment Agency
      (Tax Allocation Redevelopment
      Project Area #1)
      Series A 5.10% 9/1/31 (AMBAC)                   2,000,000       2,098,199
   Lake Elisnore Public Financing
      Authority Tax Allocation
      Series A 5.50% 9/1/30                           1,000,000       1,027,870
   Poway Redevelopment Agency Tax Allocation
      5.75% 6/15/33 (MBIA)                            1,400,000       1,553,790
   Riverside County Redevelopment
      Agency Tax Allocation
      (Jurupa Valley Project)
      5.25% 10/1/35 (AMBAC)                           1,590,000       1,699,631
   Southern California Logistics Airport
      Authority Tax Allocation
      (Southern California Logistics
      Airport Project) 6.50% 12/1/31                  1,000,000       1,067,660
                                                                  -------------
                                                                     10,546,890
                                                                  -------------

                                        8



- --------------------------------------------------------------------------------
                                               Delaware Tax-Free California Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                       Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Water & Sewer Revenue Bonds - 5.39%
   Banning Utilities Authority Water
      Enterprise Revenue
      5.25% 11/1/35 (FGIC)                          $ 1,000,000   $   1,088,180
   California State Department of Water
      Resources Water Systems Revenue
      (Central Valley Project)
      Series X 5.00% 12/1/29 (FGIC)                   1,000,000       1,044,490
   Clovis Public Financing Authority
      Wastewater Revenue
      5.25% 8/1/30 (MBIA)                             1,000,000       1,078,980
   Metropolitan Water District of Southern
      California Waterworks Authority Revenue
      Series B-1 5.00% 10/1/36 (FGIC)                 1,000,000       1,045,220
   San Francisco City & County Public
      Utilities Commission Series A
      4.75% 11/1/36 (FSA)                             1,000,000       1,024,100
                                                                  -------------
                                                                      5,280,970
                                                                  -------------

Total Municipal Bonds (cost $87,804,080)                             92,302,193
                                                                  -------------

                                                     Number of
                                                      Shares
- --------------------------------------------------------------------------------
Short-Term Investments - 5.35%
- --------------------------------------------------------------------------------
Money Market Instruments - 2.08%
   Federated California Municipal Cash Trust          2,040,080       2,040,080
                                                                  -------------
                                                                      2,040,080
                                                                  -------------

                                                     Principal
                                                       Amount
- --------------------------------------------------------------------------------
oVariable Rate Demand Notes - 3.27%
   California State Department of Water
      Resources Power Supply
      Series G-10 3.22% 5/1/18 (FGIC)
      (SPA - Depfa Bank PLC)                        $ 1,700,000       1,700,000
   East Bay Municipal Utilities District
      Water System Revenue
      Series B-2 3.12% 6/1/38 (XLCA)
      (SPA - Dexia Credit Local)                      1,500,000       1,500,000
                                                                  -------------
                                                                      3,200,000
                                                                  -------------

Total Short-Term Investments
   (cost $5,240,080)                                                  5,240,080
                                                                  -------------

Total Market Value of Securities - 99.58%
   (cost $93,044,160)                                                97,542,273
Receivables and Other Assets
   Net of Liabilities - 0.42%                                           408,369
                                                                  -------------

Net Assets Applicable to 8,586,072 Shares
   Outstanding - 100.00%                                          $  97,950,642
                                                                  =============

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Net Asset Value - Delaware Tax-Free California Fund
   Class A ($69,466,316 / 6,094,155 Shares)                       $       11.40
                                                                  -------------

Net Asset Value - Delaware Tax-Free California Fund
   Class B ($16,430,573 / 1,435,888 Shares)                       $       11.44
                                                                  -------------

Net Asset Value - Delaware Tax-Free California Fund
   Class C ($12,053,753 / 1,056,029 Shares)                       $       11.41
                                                                  -------------

Components of Net Assets at February 28, 2006:
Shares of beneficial interest
   (unlimited authorization -- no par)                            $  94,214,351
Undistributed net investment income                                       1,300
Accumulated net realized loss on investments                           (763,122)
Net unrealized appreciation of investments                            4,498,113
                                                                  -------------
Total net assets                                                  $  97,950,642
                                                                  =============

o     Variable rate security. The interest rate shown is the rate as of February
      28, 2006.

- -/-   Pre-Refunded Bonds. Municipals that are generally backed or secured by
      U.S. Treasury bonds. For pre-refunded bonds, the stated maturity is
      followed by the year in which the bond is pre-refunded. See Note 8 in
      "Notes to Financial Statements."

Summary of Abbreviations:
ACA - Insured by American Capital Access
AMBAC - Insured by the AMBAC Assurance Corporation
AMT - Subject to Alternative Minimum Tax
CIFG - CDC IXIS Financial Guaranty
FGIC - Insured by the Financial Guaranty Insurance Company
FNMA - Insured by Federal National Mortgage Association
FSA - Insured by Financial Security Assurance
GNMA - Insured by Government National Mortgage Association
MBIA - Insured by the Municipal Bond Insurance Association
RADIAN - Insured by Radian Asset Assurance
SPA - Stand-by Purchase Agreement
XLCA - Insured by XL Capital Assurance

Net Asset Value and Offering Price per Share -
   Delaware Tax-Free California Fund
Net asset value Class A (A)                                       $       11.40
Sales charge (4.50% of offering price) (B)                                 0.54
                                                                  -------------
Offering price                                                    $       11.94
                                                                  =============

(A)   Net asset value per share, as illustrated, is the amount which would be
      paid upon redemption or repurchase of shares.

(B)   See the current prospectus for purchases of $100,000 or more.

See accompanying notes

                                        9



- --------------------------------------------------------------------------------
                                                 Delaware Tax-Free Colorado Fund
Statements                                       February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds - 98.22%
- --------------------------------------------------------------------------------
Airport Revenue Bonds - 4.48%
   Denver City & County Airport Revenue
      Series B 5.00% 11/15/33 (XLCA)                $ 4,000,000   $   4,177,920
      Series E 5.25% 11/15/23 (MBIA)                  8,250,000       8,548,650
                                                                  -------------
                                                                     12,726,570
                                                                  -------------
Charter School Revenue Bonds - 7.57%
   Colorado Educational & Cultural
      Facilities Authority Revenue
      (Charter School Project)
      5.50% 5/1/36 (XLCA)                             2,280,000       2,493,887
      (Liberty Common Charter School Project)
      5.125% 12/1/33 (XLCA)                           2,740,000       2,883,905
      (Littleton Academy Charter School Project)
      6.125% 1/15/31                                  2,000,000       2,072,600
      (Montessori Districts Charter School
      Project) 6.125% 7/15/32                         5,590,000       5,805,885
      (Pinnacle Charter School Project)
      5.00% 6/1/33 (XLCA)                             2,170,000       2,258,905
      (Renaissance Charter School Project)
      6.75% 6/1/29                                    2,000,000       1,826,600
      (Stargate Charter School Project)
      6.125% 5/1/33                                   2,000,000       2,066,520
      (Woodrow Wilson Charter School Project)
      Series A 5.25% 12/1/34 (XLCA)                   1,960,000       2,096,514
                                                                  -------------
                                                                     21,504,816
                                                                  -------------
Combined Utility Revenue Bonds - 1.82%
   Colorado Springs Utilities Revenue
      Series A 5.00% 11/15/29                         5,000,000       5,176,600
                                                                  -------------
                                                                      5,176,600
                                                                  -------------
Continuing Care/Retirement Revenue Bonds - 5.58%
   Colorado Health Facilities Authority Revenue
      (Covenant Retirement Communities)
      Series A 5.50% 12/1/33 (RADIAN)                 5,000,000       5,309,150
      (Evangelical Lutheran)
      5.00% 6/1/35                                    1,000,000       1,017,440
      Series A 5.25% 6/1/34                           2,000,000       2,063,780
      (Porter Place)
      Series A 6.00% 1/20/36 (GNMA)                   5,000,000       5,343,000
   Mesa County Residential Care
      Facilities Mortgage Revenue
      (Hilltop Community Resources)
      Series A 5.375% 12/1/28 (RADIAN)                2,000,000       2,115,180
                                                                  -------------
                                                                     15,848,550
                                                                  -------------
Dedicated Tax & Fees Revenue Bonds - 1.03%
   Gypsum Sales Tax & General
      Funding Revenue 5.25% 6/1/30                    2,690,000       2,916,444
                                                                  -------------
                                                                      2,916,444
                                                                  -------------
Electric & Gas Revenue Bonds - 0.37%
   Puerto Rico Electric Power Authority Revenue
      Series NN 5.00% 7/1/32                          1,000,000       1,052,300
                                                                  -------------
                                                                      1,052,300
                                                                  -------------

                                                     Principal        Market
                                                       Amount         Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Escrowed to Maturity Bonds - 2.23%
   Colorado Health Facilities Authority
      (Catholic Health Initiatives)
      Series A 5.50% 3/1/32                         $ 5,000,000   $   5,448,550
Galleria Metropolitan District
      7.25% 12/1/09                                     830,000         882,921
                                                                  -------------
                                                                      6,331,471
                                                                  -------------
Higher Education Revenue Bonds - 10.26%
   Boulder County Development Revenue
      University Corporation for
      Atmospheric Research
      5.00% 9/1/33 (MBIA)                             1,000,000       1,039,660
      5.00% 9/1/35 (AMBAC)                            2,000,000       2,090,980
   Colorado Educational &
      Cultural Facilities Authority
      (Johnson & Wales University Project)
      Series A 5.00% 4/1/28 (XLCA)                    1,000,000       1,043,910
      (Regis University Project)
      5.00% 6/1/22 (RADIAN)                           1,820,000       1,893,528
      5.00% 6/1/24 (RADIAN)                           1,700,000       1,761,540
      (University of Denver Project)
      Series A 5.00% 3/1/27 (MBIA)                    5,000,000       5,203,700
      Series B 5.25% 3/1/35 (FGIC)                    1,750,000       1,901,113
      (University of Northern Colorado
      Student Housing Project)
      Series A 5.125% 7/1/37 (MBIA)                   7,500,000       7,795,724
   Colorado School Mines Auxiliary
      Facilities Revenue
      5.00% 12/1/37 (AMBAC)                           3,130,000       3,256,202
   Colorado State Board of Governors
      University Enterprise System Revenue
      Series B 5.00% 3/1/35 (AMBAC)                   2,000,000       2,087,000
   University of Colorado Enterprise
      System Revenue Series A
      5.375% 6/1/26                                   1,000,000       1,065,140
                                                                  -------------
                                                                     29,138,497
                                                                  -------------
Hospital Revenue Bonds - 8.63%
   Boulder County Hospital
      Development Revenue
      (Longmont United Hospital Project)
      5.60% 12/1/27 (RADIAN)                          1,250,000       1,294,675
      6.00% 12/1/30 (RADIAN)                          5,000,000       5,443,700
   Colorado Health Facilities Authority Revenue
      (Longmont United Hospital)
      5.00% 12/1/19 (ACA)                             1,150,000       1,183,051
      (Parkview Medical Center) 5.00% 9/1/25          1,000,000       1,032,470
      (Vail Valley Medical Center Project)
      5.00% 1/15/17                                   1,000,000       1,042,470
      5.80% 1/15/27                                   3,475,000       3,670,851
   Delta County Memorial Hospital
      District Enterprise Revenue
      5.35% 9/1/17                                    4,000,000       4,161,840
   Denver Health & Hospital Authority
      Healthcare Revenue Series A
      5.375% 12/1/28 (ACA)                            2,770,000       2,856,119
   University of Colorado Hospital
      Authority Revenue Series A
      5.60% 11/15/31                                  3,650,000       3,816,951
                                                                  -------------
                                                                     24,502,127
                                                                  -------------

                                       10



- --------------------------------------------------------------------------------
                                                 Delaware Tax-Free Colorado Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Library/Museum Revenue Bonds - 0.74%
   Colorado Educational & Cultural
      Facilities Authority Revenue
      5.25% 6/1/21                                  $ 2,000,000   $   2,093,700
                                                                  -------------
                                                                      2,093,700
                                                                  -------------
Multifamily Housing Revenue Bonds - 6.23%
   Adams County Housing Authority
      Mortgage Revenue
      (Greenbriar Project) 6.75% 7/1/21               1,730,000       1,769,877
   Colorado Housing & Finance Authority
      (Multifamily Housing Insured Mortgage)
      Series A3 6.25% 10/1/26 (FHA)                   6,205,000       6,347,963
      Series C3 6.15% 10/1/41                         1,590,000       1,663,935
   Denver City and County Multifamily Housing
      Revenue Federal Housing Authority
      (Insured Mortgage Loan - Garden Court)
      5.40% 7/1/39 (FHA)                              2,000,000       2,053,000
   Englewood Multifamily Housing Revenue
      (Marks Apartments Project)
      6.65% 12/1/26                                   5,700,000       5,864,388
                                                                  -------------
                                                                     17,699,163
                                                                  -------------
Municipal Lease Revenue Bonds - 3.39%
   Conejos & Alamosa Counties
      School District #11J
      Certificates of Participation
      6.50% 4/1/11                                    1,085,000       1,106,125
   El Paso County Certificates of Participation
      (Detention Facilities Project)
      Series B 5.00% 12/1/27 (AMBAC)                  1,500,000       1,563,150
      (Judicial Building Project)
      Series A 5.00% 12/1/27 (AMBAC)                  2,000,000       2,084,200
   Fremont County Certificates of Participation
      Series A 5.25% 12/15/24 (MBIA)                  3,045,000       3,271,243
   Puerto Rico Public Buildings
      Authority Revenue
      (Government Facilities)
      Series I 5.25% 7/1/33                           1,500,000       1,596,750
                                                                  -------------
                                                                      9,621,468
                                                                  -------------
Political Subdivision General Obligation Bonds - 10.63%
   Arapahoe County Water & Wastewater Public
      Improvement District Series A
      5.125% 12/1/32 (MBIA)                           4,500,000       4,780,485
   Bowles Metropolitan District
      5.00% 12/1/33 (FSA)                             2,500,000       2,620,125
   Denver West Metropolitan District
      5.00% 12/1/33 (RADIAN)                          4,000,000       4,103,120
   Eagle Bend Metropolitan District #2
      5.00% 12/1/35 (RADIAN)                          3,000,000       3,100,440
   Lincoln Park Metropolitan District
      7.75% 12/1/26                                   2,500,000       2,665,575
   Meridian Metropolitan District Series A
      5.00% 12/1/31 (RADIAN)                          7,000,000       7,161,070
   North Range Metropolitan District #1
      7.25% 12/15/31                                  3,400,000       3,604,408
   Saddle Rock Metropolitan District
      5.35% 12/1/31 (RADIAN)                          1,580,000       1,651,590
   Sand Creek Metropolitan District
      5.00% 12/1/31 (XLCA)                              500,000         523,015
                                                                  -------------
                                                                     30,209,828
                                                                  -------------

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
- -/-Pre-Refunded Bonds - 14.52%
   Aurora Certificates of Participation
      5.50% 12/1/30-10 (AMBAC)                      $ 8,000,000   $   8,665,359
   Burlingame Multifamily Housing Revenue
      Series A 6.00% 11/1/29-09 (MBIA)                1,250,000       1,366,550
   Colorado Educational & Cultural
      Facilities Authority Revenue
      (Core Knowledge Charter School Project)
      7.00% 11/1/29-09                                1,000,000       1,115,340
      (Lincoln Academy Charter School Project)
      8.375% 3/1/26-06                                2,330,000       2,374,503
      (Pinnacle Charter School Project)
      6.00% 12/1/21-11                                1,750,000       1,958,653
      (University of Denver Project)
      5.375% 3/1/23-11 (AMBAC)                          975,000       1,055,896
      (University of Denver Project-
      Refunded Balance)
      5.375% 3/1/23-11 (AMBAC)                        1,025,000       1,106,621
   Colorado Springs Revenue
      (Colorado College Project)
      5.375% 6/1/32-09                                5,570,000       5,945,140
   El Paso County School District #49 (Falcon)
      5.50% 12/1/21-11 (FGIC)                         3,580,000       3,898,262
   Greeley County Building Authority
      Certificates of Participation
      6.10% 8/15/16-07                                2,600,000       2,698,852
   Pueblo County Certificates of Participation
      6.50% 12/1/24-10                                5,460,000       6,130,651
   Silver Dollar Metropolitan District
      7.05% 12/1/30-06                                4,810,000       4,934,675
                                                                  -------------
                                                                     41,250,502
                                                                  -------------
 Recreational Area Revenue Bonds - 1.20%
   South Suburban Park & Recreation District
      (Golf Course & Ice Arena Facility)
      6.00% 11/1/15                                   2,330,000       2,375,854
   Westminster Golf Course
      5.55% 12/1/23 (RADIAN)                          1,000,000       1,050,200
                                                                  -------------
                                                                      3,426,054
                                                                  -------------
School District General Obligation Bonds - 5.12%
   Adams & Arapahoe Counties Joint
      School District #28J
      5.25% 12/1/25 (MBIA)                            2,000,000       2,199,240
   Douglas County School District #1 Building
      (Douglas & Elbert Counties) Series B
      5.00% 12/15/30 (FSA)                            2,335,000       2,468,423
      5.125% 12/15/25 (FSA)                           2,000,000       2,117,860
   El Paso County School District #2
      (Harrison) 5.00% 12/1/27 (MBIA)                 2,115,000       2,210,365
   Fremont County School District #1
      (Canon City) 5.00% 12/1/24 (MBIA)               1,735,000       1,835,994
   Garfield County School District #2
      5.00% 12/1/25 (FSA)                             1,000,000       1,049,880
   Garfield Pitkin & Eagle County
      School District #1 Series A
      5.00% 12/15/27 (FSA)                            1,500,000       1,587,975
   La Plata County School District #9-R
      5.125% 11/1/24 (MBIA)                           1,000,000       1,064,080
                                                                  -------------
                                                                     14,533,817
                                                                  -------------

                                       11



- --------------------------------------------------------------------------------
                                                 Delaware Tax-Free Colorado Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Tax Increment/Special Assessment Bonds - 5.03%
   Loveland Special Improvements District #1
      7.50% 7/1/29                                  $ 5,540,000   $   5,556,786
   Lowry Economic Redevelopment
      Authority Revenue Series A
      7.30% 12/1/10                                     790,000         824,207
      7.80% 12/1/10                                   7,545,000       7,899,540
                                                                  -------------
                                                                     14,280,533
                                                                  -------------
Territorial General Obligation Bonds - 2.23%
   Puerto Rico Commonwealth Public
      Improvement Series A 5.25% 7/1/21               4,000,000       4,270,560
   Virgin Islands Public Finance Authority
      (Gross Receipts Taxes)
      5.00% 10/1/31 (ACA)                             2,000,000       2,055,460
                                                                  -------------
                                                                      6,326,020
                                                                  -------------
Turnpike/Toll Road Revenue Bonds - 5.42%
   E-470 Public Highway Authority Revenue
      Series A 5.75% 9/1/35 (MBIA)                    3,100,000       3,414,216
   Northwest Parkway Public Highway
      Authority Series A 5.25% 6/15/41 (FSA)         11,250,000      11,997,788
                                                                  -------------
                                                                     15,412,004
                                                                  -------------
Water & Sewer Revenue Bonds - 1.74%
   Erie Water Enterprise Revenue
      5.00% 12/1/23 (ACA)                             1,750,000       1,769,268
   Ute Utility Water Conservancy
      District Revenue 5.75% 6/15/20 (MBIA)           2,900,000       3,165,553
                                                                  -------------
                                                                      4,934,821
                                                                  -------------

Total Municipal Bonds (cost $261,923,713)                           278,985,285
                                                                  -------------

                                                     Number of
                                                      Shares

- --------------------------------------------------------------------------------
Short-Term Investments - 0.52%
- --------------------------------------------------------------------------------
Money Market Investments - 0.52%
   Dreyfus Cash Management Fund                       1,489,742       1,489,742
                                                                  -------------

Total Short-Term Investments
   (cost $1,489,742)                                                  1,489,742
                                                                  -------------

Total Market Value of Securities - 98.74%
   (cost $263,413,455)                                              280,475,027
Receivables and Other Assets
   Net of Liabilities - 1.26%                                         3,566,347
                                                                  -------------

Net Assets Applicable to 25,622,802 Shares
   Outstanding - 100.00%                                          $ 284,041,374
                                                                  =============

Net Asset Value - Delaware Tax-Free Colorado Fund
   Class A ($264,378,776 / 23,851,395 Shares)                     $       11.08
                                                                  -------------

Net Asset Value - Delaware Tax-Free Colorado Fund
   Class B ($9,333,166 / 841,430 Shares)                          $       11.09
                                                                  -------------

Net Asset Value - Delaware Tax-Free Colorado Fund
   Class C ($10,329,432 / 929,977 Shares)                         $       11.11
                                                                  -------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Components of Net Assets at February 28, 2006:
Shares of beneficial interest
   (unlimited authorization -- no par)                            $ 276,096,365

Accumulated net realized loss on investments                         (9,116,563)
Net unrealized appreciation of investments                           17,061,572
                                                                  -------------
Total net assets                                                  $ 284,041,374
                                                                  =============

- -/-   Pre-Refunded Bonds. Municipals that are generally backed or secured by
      U.S. Treasury bonds. For pre-refunded bonds, the stated maturity is
      followed by the year in which the bond is pre-refunded. See Note 8 in
      "Notes to Financial Statements."

Summary of Abbreviations:
ACA - Insured by American Capital Access
AMBAC - Insured by the AMBAC Assurance Corporation
FGIC - Insured by the Financial Guaranty Insurance Company
FHA - Insured by the Federal Housing Administration
FSA - Insured by Financial Security Assurance
GNMA - Insured by Government National Mortgage Association
MBIA - Insured by the Municipal Bond Insurance Association
RADIAN - Insured by Radian Asset Assurance
XLCA - Insured by XL Capital Assurance

Net Asset Value and Offering Price per Share -
   Delaware Tax-Free Colorado Fund
Net asset value Class A (A)                                       $       11.08
Sales charge (4.50% of offering price) (B)                                 0.52
                                                                  -------------
Offering price                                                    $       11.60
                                                                  =============

(A)   Net asset value per share, as illustrated, is the amount which would be
      paid upon redemption or repurchase of shares.

(B)   See the current prospectus for purchases of $100,000 or more.

See accompanying notes

                                       12



- --------------------------------------------------------------------------------
Statements                        Six Months Ended February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF OPERATIONS



                                                                        Delaware Tax-Free    Delaware Tax-Free    Delaware Tax-Free
                                                                       Arizona Insured Fund   California Fund       Colorado Fund
                                                                                                         
Investment Income:
   Interest                                                             $        3,844,095   $        2,215,661   $       7,548,414
                                                                        ------------------   ------------------   -----------------

Expenses:
   Management fees                                                                 394,575              252,508             775,403
   Distribution expenses -- Class A                                                164,077               79,992             328,657
   Distribution expenses -- Class B                                                 90,246               85,510              47,578
   Distribution expenses -- Class C                                                 42,606               52,609              47,969
   Dividend disbursement and transfer agent fees and expenses                       40,770               20,365              78,023
   Accounting and administration expenses                                           31,566               18,364              56,393
   Legal and professional fees                                                      16,479               11,281              20,080
   Reports and statements to shareholders                                           11,141                7,839              11,739
   Registration fees                                                                 9,350               17,785               4,450
   Trustees' fees                                                                    4,500                2,634               8,051
   Custodian fees                                                                    4,326                3,500               8,353
   Insurance fees                                                                    1,658                1,307               4,862
   Pricing fees                                                                      1,183                1,006               1,290
   Taxes (other than taxes on income)                                                  277                   67                 752
   Other                                                                             3,638                3,333               8,175
                                                                        ------------------   ------------------   -----------------
                                                                                   816,392              558,100           1,401,775
   Less expenses absorbed or waived                                               (109,114)             (50,877)            (18,798)
   Less expense paid indirectly                                                        (28)                 (28)                 --
                                                                        ------------------   ------------------   -----------------
   Total operating expenses                                                        707,250              507,195           1,382,977
                                                                        ------------------   ------------------   -----------------
Net Investment Income                                                            3,136,845            1,708,466           6,165,437
                                                                        ------------------   ------------------   -----------------

Net Realized and Unrealized Gain (Loss) on Investments:
   Net realized gain (loss) on investments                                        (101,029)              43,753             200,231
   Net change in unrealized appreciation/depreciation of investments            (2,068,076)            (677,036)         (3,114,128)
                                                                        ------------------   ------------------   -----------------
Net Realized and Unrealized Loss on Investments                                 (2,169,105)            (633,283)         (2,913,897)
                                                                        ------------------   ------------------   -----------------

Net Increase in Net Assets Resulting from Operations                    $          967,740   $        1,075,183   $       3,251,540
                                                                        ==================   ==================   =================


See accompanying notes

                                       13



- --------------------------------------------------------------------------------
Statements
- --------------------------------------------------------------------------------
   OF CHANGES IN NET ASSETS



                                                 Delaware Tax-Free             Delaware Tax-Free            Delaware Tax-Free
                                               Arizona Insured Fund             California Fund               Colorado Fund

                                            Six Months         Year        Six Months        Year        Six Months       Year
                                               Ended          Ended          Ended          Ended          Ended         Ended
                                              2/28/06        8/31/05        2/28/06        8/31/05        2/28/06       8/31/05
                                            (Unaudited)                   (Unaudited)                   (Unaudited)
                                                                                                    
Increase (Decrease) in Net Assets from
   Operations:
   Net investment income                   $   3,136,845  $   5,859,541  $   1,708,466  $   2,275,968  $   6,165,437  $  12,978,314
   Net realized gain (loss) on
      investments                               (101,029)       264,284         43,753         43,276        200,231     (2,712,031)
   Net change in unrealized appreciation/
      depreciation of investments             (2,068,076)     2,239,992       (677,036)     2,245,832     (3,114,128)     5,986,463
                                           -------------  -------------  -------------  -------------  -------------  -------------
   Net increase in net assets resulting
      from operations                            967,740      8,363,817      1,075,183      4,565,076      3,251,540     16,252,746
                                           -------------  -------------  -------------  -------------  -------------  -------------

Dividends and Distributions to
   Shareholders from:
   Net investment income:
      Class A                                 (2,692,234)    (5,096,515)    (1,266,937)    (1,517,382)    (5,811,462)   (12,211,017)
      Class B                                   (302,180)      (510,403)      (272,955)      (520,743)      (174,449)      (421,258)
      Class C                                   (142,431)      (252,623)      (168,574)      (237,843)      (175,669)      (338,621)

   Net realized gain on investments:
      Class A                                         --       (248,176)            --             --             --             --
      Class B                                         --        (27,488)            --             --             --             --
      Class C                                         --        (13,869)            --             --             --             --
                                           -------------  -------------  -------------  -------------  -------------  -------------
                                              (3,136,845)    (6,149,074)    (1,708,466)    (2,275,968)    (6,161,580)   (12,970,896)
                                           -------------  -------------  -------------  -------------  -------------  -------------

Capital Share Transactions:
   Proceeds from shares sold:
      Class A                                  3,420,674      6,855,917     13,554,913     18,776,298      7,214,412     15,027,725
      Class B                                     30,021        441,653        381,042      1,177,507         16,299        899,393
      Class C                                    552,752      1,248,630      2,854,882      3,524,288      1,393,972      1,382,314

   Net assets from reorganization*:
      Class A                                         --     18,971,166             --     23,988,851             --             --
      Class B                                         --      6,819,275             --      6,171,643             --             --
      Class C                                         --      3,097,336             --      1,332,252             --             --

   Net asset value of shares issued upon
      reinvestment of dividends and
      distributions:
      Class A                                  1,427,886      2,678,398        597,632        631,234      3,725,382      7,395,797
      Class B                                    144,180        263,680        166,632        235,428        108,439        262,793
      Class C                                     95,839        181,297        111,722        134,429        121,141        234,982
                                           -------------  -------------  -------------  -------------  -------------  -------------
                                               5,671,352     40,557,352     17,666,823     55,971,930     12,579,645     25,203,004
                                           -------------  -------------  -------------  -------------  -------------  -------------

   Cost of shares repurchased:
      Class A                                 (5,040,402)   (17,883,135)    (5,008,505)    (8,907,524)   (13,988,843)   (31,859,739)
      Class B                                 (1,103,947)    (2,146,762)    (2,221,965)    (4,436,217)    (1,057,481)    (3,327,004)
      Class C                                   (714,920)    (2,713,378)      (606,832)    (1,084,487)      (270,459)    (2,134,310)
                                           -------------  -------------  -------------  -------------  -------------  -------------
                                              (6,859,269)   (22,743,275)    (7,837,302)   (14,428,228)   (15,316,783)   (37,321,053)
                                           -------------  -------------  -------------  -------------  -------------  -------------

Increase (decrease) in net assets
   derived from capital share
   transactions                               (1,187,917)    17,814,077      9,829,521     41,543,702     (2,737,138)   (12,118,049)
                                           -------------  -------------  -------------  -------------  -------------  -------------

Net Increase (Decrease) in Net Assets         (3,357,022)    20,028,820      9,196,238     43,832,810     (5,647,178)    (8,836,199)

Net Assets:
      Beginning of period                    162,470,492    142,441,672     88,754,404     44,921,594    289,688,552    298,524,751
                                           -------------  -------------  -------------  -------------  -------------  -------------
      End of period(1)                     $ 159,113,470  $ 162,470,492  $  97,950,642  $  88,754,404  $ 284,041,374  $ 289,688,552
                                           =============  =============  =============  =============  =============  =============

      (1)Including undistributed
          (distribution in excess of) net
          investment income                $     (20,294) $     (20,294) $       1,300  $       1,300  $          --  $          --
                                           =============  =============  =============  =============  =============  =============


*     See Note 6 in "Notes to Financial Statements."

See accompanying notes

                                       14



Financial
   HIGHLIGHTS

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ------------------------------------------------------------------------------------------------------------------------------------
                                                                   Delaware Tax-Free Arizona Insured Fund Class A
- ------------------------------------------------------------------------------------------------------------------------------------
                                                 Six Months
                                                    Ended                                    Year Ended
                                                 2/28/06(1)       8/31/05        8/31/04        8/31/03     8/31/02(2)     8/31/01
                                                 (Unaudited)
                                                                                                        
Net asset value, beginning of period            $     11.560    $   11.410     $    11.160    $   11.530    $   11.500    $  11.040

Income (loss) from investment operations:
Net investment income                                  0.232         0.468           0.469         0.502         0.510        0.521
Net realized and unrealized gain (loss)
   on investments                                     (0.160)        0.174           0.308        (0.253)        0.100        0.460
                                                ------------    ----------     -----------    ----------    ----------    ---------
Total from investment operations                       0.072         0.642           0.777         0.249         0.610        0.981
                                                ------------    ----------     -----------    ----------    ----------    ---------

Less dividends and distributions from:
Net investment income                                 (0.232)       (0.468)         (0.469)       (0.502)       (0.510)      (0.521)
Net realized gain on investments                          --        (0.024)         (0.058)       (0.117)       (0.070)          --
                                                ------------    ----------     -----------    ----------    ----------    ---------
Total dividends and distributions                     (0.232)       (0.492)         (0.527)       (0.619)       (0.580)      (0.521)
                                                ------------    ----------     -----------    ----------    ----------    ---------

Net asset value, end of period                  $     11.400    $   11.560     $    11.410    $   11.160    $   11.530    $  11.500
                                                ============    ==========     ===========    ==========    ==========    =========

Total return(3)                                         0.64%         5.74%           7.09%         2.17%         5.54%        9.12%

Ratios and supplemental data:
Net assets, end of period (000 omitted)         $    132,880    $  134,874     $   122,436    $  129,683    $  141,424    $ 141,298
Ratio of expenses to average net assets                 0.77%         0.80%           0.90%         0.86%         0.90%        0.95%
Ratio of expenses to average net assets
   prior to expense limitation and
   expenses paid indirectly                             0.91%         0.91%           0.90%         0.91%         0.90%        0.97%
Ratio of net investment income to average
   net assets                                           4.10%         4.07%           4.14%         4.37%         4.50%        4.65%
Ratio of net investment income to average
   net assets prior to expense limitation
   and expenses paid indirectly                         3.96%         3.96%           4.14%         4.32%         4.50%        4.63%
Portfolio turnover                                         7%            3%             19%           29%           46%          45%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      This change in accounting had no impact for the year ended August 31,
      2002. Per share data and ratios for periods prior to September 1, 2001
      have not been restated to reflect this change in accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects waivers and payment of fees
      by the manager, as applicable. Performance would have been lower had the
      expense limitation not been in effect.

See accompanying notes

                                       15



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ------------------------------------------------------------------------------------------------------------------------------------
                                                                      Delaware Tax-Free Arizona Insured Fund Class B
- ------------------------------------------------------------------------------------------------------------------------------------
                                                      Six Months
                                                         Ended                               Year Ended
                                                      2/28/06(1)    8/31/05       8/31/04      8/31/03    8/31/02(2)     8/31/01
                                                      (Unaudited)
                                                                                                      
Net asset value, beginning of period                  $   11.570   $   11.420   $   11.170   $   11.540   $   11.500    $   11.040

Income (loss) from investment operations:
Net investment income                                      0.189        0.382        0.384        0.416        0.426         0.437
Net realized and unrealized gain (loss)
   on investments                                         (0.160)       0.174        0.308       (0.253)       0.110         0.460
                                                      ----------   ----------   ----------   ----------   ----------    ----------
Total from investment operations                           0.029        0.556        0.692        0.163        0.536         0.897
                                                      ----------   ----------   ----------   ----------   ----------    ----------

Less dividends and distributions from:
Net investment income                                     (0.189)      (0.382)      (0.384)      (0.416)      (0.426)       (0.437)
Net realized gain on investments                              --       (0.024)      (0.058)      (0.117)      (0.070)           --
                                                      ----------   ----------   ----------   ----------   ----------    ----------
Total dividends and distributions                         (0.189)      (0.406)      (0.442)      (0.533)      (0.496)       (0.437)
                                                      ----------   ----------   ----------   ----------   ----------    ----------

Net asset value, end of period                        $   11.410   $   11.570   $   11.420   $   11.170   $   11.540    $   11.500
                                                      ==========   ==========   ==========   ==========   ==========    ==========

Total return(3)                                             0.26%        4.95%        6.28%        1.41%        4.83%         8.31%

Ratios and supplemental data:
Net assets, end of period (000 omitted)               $   17,822   $   19,005   $   13,355   $   14,666   $   13,678    $    8,864
Ratio of expenses to average net assets                     1.52%        1.55%        1.65%        1.61%        1.65%         1.70%
Ratio of expenses to average net assets
   prior to expense limitation and
   expenses paid indirectly                                 1.66%        1.66%        1.65%        1.66%        1.65%         1.72%
Ratio of net investment income to average
   net assets                                               3.35%        3.32%        3.39%        3.62%        3.75%         3.90%
Ratio of net investment income to average
   net assets prior to expense limitation
   and expenses paid indirectly                             3.21%        3.21%        3.39%        3.57%        3.75%         3.88%
Portfolio turnover                                             7%           3%          19%          29%          46%           45%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      This change in accounting had no impact for the year ended August 31,
      2002. Per share data and ratios for periods prior to September 1, 2001
      have not been restated to reflect this change in accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects waivers and payment of fees
      by the manager, as applicable. Performance would have been lower had the
      expense limitation not been in effect.

See accompanying notes

                                       16



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ------------------------------------------------------------------------------------------------------------------------------------
                                                                 Delaware Tax-Free Arizona Insured Fund Class C
- ------------------------------------------------------------------------------------------------------------------------------------
                                              Six Months
                                                Ended                                     Year Ended
                                              2/28/06(1)      8/31/05        8/31/04        8/31/03      8/31/02(2)       8/31/01
                                             (Unaudited)
                                                                                                      
Net asset value, beginning of period         $    11.580    $    11.430    $    11.180    $    11.550    $    11.520    $    11.040

Income (loss) from investment operations:
Net investment income                              0.189          0.382          0.384          0.415          0.426          0.438
Net realized and unrealized gain (loss)
   on investments                                 (0.150)         0.174          0.308         (0.253)         0.100          0.480
                                             -----------    -----------    -----------    -----------    -----------    -----------
Total from investment operations                   0.039          0.556          0.692          0.162          0.526          0.918
                                             -----------    -----------    -----------    -----------    -----------    -----------

Less dividends and distributions from:
Net investment income                             (0.189)        (0.382)        (0.384)        (0.415)        (0.426)        (0.438)
Net realized gain on investments                      --         (0.024)        (0.058)        (0.117)        (0.070)            --
                                             -----------    -----------    -----------    -----------    -----------    -----------
Total dividends and distributions                 (0.189)        (0.406)        (0.442)        (0.532)        (0.496)        (0.438)
                                             -----------    -----------    -----------    -----------    -----------    -----------

Net asset value, end of period               $    11.430    $    11.580    $    11.430    $    11.180    $    11.550    $    11.520
                                             ===========    ===========    ===========    ===========    ===========    ===========

Total return(3)                                     0.35%          4.94%          6.27%          1.40%          4.73%          8.50%

Ratios and supplemental data:
Net assets, end of period (000 omitted)      $     8,411    $     8,591    $     6,651    $     8,544    $     8,115    $     3,230
Ratio of expenses to average net assets             1.52%          1.55%          1.65%          1.61%          1.65%          1.70%
Ratio of expenses to average net assets
   prior to expense limitation and
   expenses paid indirectly                         1.66%          1.66%          1.65%          1.66%          1.65%          1.72%
Ratio of net investment income to average
   net assets                                       3.35%          3.32%          3.39%          3.62%          3.75%          3.90%
Ratio of net investment income to average
   net assets prior to expense limitation
   and expenses paid indirectly                     3.21%          3.21%          3.39%          3.57%          3.75%          3.88%
Portfolio turnover                                     7%             3%            19%            29%            46%            45%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      This change in accounting had no impact for the year ended August 31,
      2002. Per share data and ratios for periods prior to September 1, 2001
      have not been restated to reflect this change in accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects waivers and payment of fees
      by the manager, as applicable. Performance would have been lower had the
      expense limitation not been in effect.

See accompanying notes

                                       17



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ------------------------------------------------------------------------------------------------------------------------------------
                                                                    Delaware Tax-Free California Fund Class A
- ------------------------------------------------------------------------------------------------------------------------------------
                                              Six Months
                                                Ended                                     Year Ended
                                              2/28/06(1)      8/31/05        8/31/04        8/31/03      8/31/02(2)       8/31/01
                                             (Unaudited)
                                                                                                      
Net asset value, beginning of period         $    11.490    $    11.110    $    10.750    $    11.010    $    10.950    $    10.430

Income (loss) from investment operations:
Net investment income                              0.222          0.462          0.518          0.537          0.546          0.538
Net realized and unrealized gain (loss)
   on investments                                 (0.090)         0.380          0.360         (0.260)         0.060          0.520
                                             -----------    -----------    -----------    -----------    -----------    -----------
Total from investment operations                   0.132          0.842          0.878          0.277          0.606          1.058
                                             -----------    -----------    -----------    -----------    -----------    -----------

Less dividends and distributions from:
Net investment income                             (0.222)        (0.462)        (0.518)        (0.537)        (0.546)        (0.538)
                                             -----------    -----------    -----------    -----------    -----------    -----------
Total dividends and distributions                 (0.222)        (0.462)        (0.518)        (0.537)        (0.546)        (0.538)
                                             -----------    -----------    -----------    -----------    -----------    -----------

Net asset value, end of period               $    11.400    $    11.490    $    11.110    $    10.750    $    11.010    $    10.950
                                             ===========    ===========    ===========    ===========    ===========    ===========

Total return(3)                                     1.18%          7.72%          8.34%          2.51%          5.77%         10.43%

Ratios and supplemental data:
Net assets, end of period (000 omitted)      $    69,466    $    60,744    $    24,797    $    22,169    $    23,462    $    24,925
Ratio of expenses to average net assets             0.88%          0.84%          0.50%          0.50%          0.50%          0.50%
Ratio of expenses to average net assets
   prior to expense limitation and
   expenses paid indirectly                         0.99%          1.06%          0.96%          0.93%          0.97%          0.99%
Ratio of net investment income to average
   net assets                                       3.95%          4.03%          4.72%          4.84%          5.05%          5.07%
Ratio of net investment income to average
   net assets prior to expense limitation
   and expenses paid indirectly                     3.84%          3.81%          4.26%          4.41%          4.58%          4.58%
Portfolio turnover                                     8%            11%            48%            56%            93%           130%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      This change in accounting had no impact for the year ended August 31,
      2002. Per share data and ratios for periods prior to September 1, 2001
      have not been restated to reflect this change in accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects waivers and payment of fees
      by the manager. Performance would have been lower had the expense
      limitation not been in effect.

See accompanying notes
                                       18



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- -----------------------------------------------------------------------------------------------------------------------------------
                                                                    Delaware Tax-Free California Fund Class B
- -----------------------------------------------------------------------------------------------------------------------------------
                                              Six Months
                                                Ended                                     Year Ended
                                              2/28/06(1)      8/31/05        8/31/04        8/31/03      8/31/02(2)       8/31/01
                                             (Unaudited)
                                                                                                      
Net asset value, beginning of period         $    11.530    $    11.160    $    10.790    $    11.050    $    10.990    $    10.460

Income (loss) from investment operations:
Net investment income                              0.180          0.377          0.436          0.453          0.465          0.459
Net realized and unrealized gain (loss) on
   investments                                    (0.090)         0.370          0.370         (0.260)         0.060          0.530
                                             -----------    -----------    -----------    -----------    -----------    -----------
Total from investment operations                   0.090          0.747          0.806          0.193          0.525          0.989
                                             -----------    -----------    -----------    -----------    -----------    -----------

Less dividends and distributions from:
Net investment income                             (0.180)        (0.377)        (0.436)        (0.453)        (0.465)        (0.459)
                                             -----------    -----------    -----------    -----------    -----------    -----------
Total dividends and distributions                 (0.180)        (0.377)        (0.436)        (0.453)        (0.465)        (0.459)
                                             -----------    -----------    -----------    -----------    -----------    -----------

Net asset value, end of period               $    11.440    $    11.530    $    11.160    $    10.790    $    11.050    $    10.990
                                             ===========    ===========    ===========    ===========    ===========    ===========

Total return(3)                                     0.80%          6.80%          7.60%          1.73%          4.95%          9.58%

Ratios and supplemental data:
Net assets, end of period (000 omitted)      $    16,431    $    18,254    $    14,530    $    16,165    $    15,105    $    14,792
Ratio of expenses to average net assets             1.63%          1.59%          1.25%          1.25%          1.25%          1.25%
Ratio of expenses to average net assets
   prior to expense limitation and expenses
   paid indirectly                                  1.74%          1.81%          1.71%          1.68%          1.72%          1.74%
Ratio of net investment income to average
   net assets                                       3.20%          3.28%          3.97%          4.09%          4.30%          4.32%
Ratio of net investment income to average
   net assets prior to expense limitation
   and expenses paid indirectly                     3.09%          3.06%          3.51%          3.66%          3.83%          3.83%
Portfolio turnover                                     8%            11%            48%            56%            93%           130%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      This change in accounting had no impact for the year ended August 31,
      2002. Per share data and ratios for periods prior to September 1, 2001
      have not been restated to reflect this change in accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects waivers and payment of fees
      by the manager. Performance would have been lower had the expense
      limitation not been in effect.

See accompanying notes

                                       19



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- -------------------------------------------------------------------------------------------------------------------------------
                                                                       Delaware Tax-Free California Fund Class C
- -------------------------------------------------------------------------------------------------------------------------------
                                                          Six Months
                                                            Ended                           Year Ended
                                                          2/28/06(1)    8/31/05    8/31/04    8/31/03    8/31/02(2)    8/31/01
                                                         (Unaudited)
                                                                                                    
Net asset value, beginning of period                      $  11.500    $ 11.130   $ 10.760   $ 11.020     $ 10.970    $ 10.440

Income (loss) from investment operations:
Net investment income                                         0.180       0.377      0.436      0.454        0.465       0.459
Net realized and unrealized gain (loss) on investments       (0.090)      0.370      0.370     (0.260)       0.050       0.530
                                                         ----------    --------   --------   --------    ---------    --------
Total from investment operations                              0.090       0.747      0.806      0.194        0.515       0.989
                                                         ----------    --------   --------   --------    ---------    --------

Less dividends and distributions from:
Net investment income                                        (0.180)     (0.377)    (0.436)    (0.454)      (0.465)     (0.459)
                                                         ----------    --------   --------   --------    ---------    --------
Total dividends and distributions                            (0.180)     (0.377)    (0.436)    (0.454)      (0.465)     (0.459)
                                                         ----------    --------   --------   --------    ---------    --------

Net asset value, end of period                            $  11.410    $ 11.500   $ 11.130   $ 10.760     $ 11.020    $ 10.970
                                                         ==========    ========   ========   ========    =========    ========

Total return(3)                                                0.80%       6.81%      7.62%      1.74%        4.86%       9.70%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                    $ 12,054    $  9,756   $  5,595     $7,013     $  7,357    $  6,227
Ratio of expenses to average net assets                        1.63%       1.59%      1.25%      1.25%        1.25%       1.25%
Ratio of expenses to average net assets prior to
   expense limitation and expenses paid indirectly             1.74%       1.81%      1.71%      1.68%        1.72%       1.74%
Ratio of net investment income to average net assets           3.20%       3.28%      3.97%      4.09%        4.30%       4.32%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid
      indirectly                                               3.09%       3.06%      3.51%      3.66%        3.83%       3.83%
Portfolio turnover                                                8%         11%        48%        56%          93%        130%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      This change in accounting had no impact for the year ended August 31,
      2002. Per share data and ratios for periods prior to September 1, 2001
      have not been restated to reflect this change in accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects waivers and payment of fees
      by the manager. Performance would have been lower had the expense
      limitation not been in effect.

See accompanying notes

                                       20



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- -------------------------------------------------------------------------------------------------------------------------------
                                                                       Delaware Tax-Free Colorado Fund Class A
- -------------------------------------------------------------------------------------------------------------------------------
                                                         Six Months
                                                            Ended                           Year Ended
                                                          2/28/06(1)    8/31/05    8/31/04    8/31/03    8/31/02(2)    8/31/01
                                                         (Unaudited)
                                                                                                    
Net asset value, beginning of period                      $  11.200    $ 11.070   $ 10.830   $ 11.080     $ 11.120    $ 10.630

Income (loss) from investment operations:
Net investment income                                         0.242       0.495      0.510      0.527        0.532       0.549
Net realized and unrealized gain (loss) on investments       (0.120)      0.130      0.240     (0.250)      (0.040)      0.490
                                                         ----------    --------   --------   --------    ---------    --------
Total from investment operations                              0.122       0.625      0.750      0.277        0.492       1.039
                                                         ----------    --------   --------   --------    ---------    --------

Less dividends and distributions from:
Net investment income                                        (0.242)     (0.495)    (0.510)    (0.527)      (0.532)     (0.549)
                                                         ----------    --------   --------   --------    ---------    --------
Total dividends and distributions                            (0.242)     (0.495)    (0.510)    (0.527)      (0.532)     (0.549)
                                                         ----------    --------   --------   --------    ---------    --------

Net asset value, end of period                            $  11.080    $ 11.200   $ 11.070   $ 10.830     $ 11.080    $ 11.120
                                                         ==========    ========   ========   ========    =========    ========

Total return(3)                                                1.12%       5.78%      7.04%      2.52%        4.60%      10.05%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                   $ 264,379    $270,149   $276,534   $299,528     $314,695    $318,550
Ratio of expenses to average net assets                        0.93%       0.94%      0.95%      0.99%        0.95%       1.00%
Ratio of expenses to average net assets prior to
   expense limitation and expenses paid indirectly             0.94%       0.94%      0.95%      0.99%        0.95%       1.00%
Ratio of net investment income to average net assets           4.42%       4.46%      4.63%      4.76%        4.86%       5.09%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid
   indirectly                                                  4.41%       4.46%      4.63%      4.76%        4.86%       5.09%
Portfolio turnover                                                8%          8%        13%        30%          36%         64%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of this change for the year ended August 31, 2002 was an
      increase in net investment income per share of less than $0.001, a
      decrease in net realized and unrealized gain (loss) per share of less than
      $0.001, and an increase in the ratio of net investment income to average
      net assets of less than 0.01%. Per share data and ratios for periods prior
      to September 1, 2001 have not been restated to reflect this change in
      accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return for the years ended August 31, 2005
      and 2001 reflect waivers and payment of fees by the manager of less than
      0.01%. Performance would have been lower had the expense limitation not
      been in effect.

See accompanying notes

                                       21



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- -------------------------------------------------------------------------------------------------------------------------------
                                                                       Delaware Tax-Free Colorado Fund Class B
- -------------------------------------------------------------------------------------------------------------------------------
                                                         Six Months
                                                            Ended                           Year Ended
                                                          2/28/06(1)    8/31/05    8/31/04    8/31/03    8/31/02(2)    8/31/01
                                                         (Unaudited)
                                                                                                    
Net asset value, beginning of period                      $  11.200    $ 11.080   $ 10.830   $ 11.090     $ 11.120    $ 10.630

Income (loss) from investment operations:
Net investment income                                         0.201       0.412      0.427      0.444        0.450       0.468
Net realized and unrealized gain (loss) on investments       (0.110)      0.120      0.250     (0.260)      (0.030)      0.490
                                                         ----------    --------   --------   --------    ---------    --------
Total from investment operations                              0.091       0.532      0.677      0.184        0.420       0.958
                                                         ----------    --------   --------   --------    ---------    --------

Less dividends and distributions from:
Net investment income                                        (0.201)     (0.412)    (0.427)    (0.444)      (0.450)     (0.468)
                                                         ----------    --------   --------   --------    ---------    --------
Total dividends and distributions                            (0.201)     (0.412)    (0.427)    (0.444)      (0.450)     (0.468)
                                                         ----------    --------   --------   --------    ---------    --------

Net asset value, end of period                            $  11.090    $ 11.200   $ 11.080   $ 10.830     $ 11.090    $ 11.120
                                                         ==========    ========   ========   ========    =========    ========

Total return(3)                                                0.83%       4.89%      6.34%      1.66%        3.92%       9.24%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                   $   9,333    $ 10,370   $ 12,411   $ 13,108     $ 14,843    $ 14,330
Ratio of expenses to average net assets                        1.68%       1.69%      1.70%      1.74%        1.70%       1.75%
Ratio of expenses to average net assets prior to
   expense limitation and expenses paid indirectly             1.69%       1.69%      1.70%      1.74%        1.70%       1.75%
Ratio of net investment income to average net assets           3.67%       3.71%      3.88%      4.01%        4.11%       4.34%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid
   indirectly                                                  3.66%       3.71%      3.88%      4.01%        4.11%       4.34%
Portfolio turnover                                                8%          8%        13%        30%          36%         64%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of this change for the year ended August 31, 2002 was an
      increase in net investment income per share of less than $0.001, a
      decrease in net realized and unrealized gain (loss) per share of less than
      $0.001, and an increase in the ratio of net investment income to average
      net assets of less than 0.01%. Per share data and ratios for periods prior
      to September 1, 2001 have not been restated to reflect this change in
      accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return for the years ended August 31, 2005
      and 2001 reflect waivers and payment of fees by the manager of less than
      0.01%. Performance would have been lower had the expense limitation not
      been in effect.

See accompanying notes

                                       22



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- -------------------------------------------------------------------------------------------------------------------------------
                                                                       Delaware Tax-Free Colorado Fund Class C
- -------------------------------------------------------------------------------------------------------------------------------
                                                         Six Months
                                                            Ended                           Year Ended
                                                          2/28/06(1)    8/31/05    8/31/04    8/31/03    8/31/02(2)    8/31/01
                                                         (Unaudited)
                                                                                                    
Net asset value, beginning of period                      $  11.220    $ 11.090   $ 10.850   $ 11.100     $ 11.130    $ 10.640

Income (loss) from investment operations:
Net investment income                                         0.201       0.413      0.427      0.444        0.450       0.468
Net realized and unrealized gain (loss) on investments       (0.110)      0.130      0.240     (0.250)      (0.030)      0.490
                                                         ----------    --------   --------   --------    ---------    --------
Total from investment operations                              0.091       0.543      0.667      0.194        0.420       0.958
                                                         ----------    --------   --------   --------    ---------    --------

Less dividends and distributions from:
Net investment income                                        (0.201)     (0.413)    (0.427)    (0.444)      (0.450)     (0.468)
                                                         ----------    --------   --------   --------    ---------    --------
Total dividends and distributions                            (0.201)     (0.413)    (0.427)    (0.444)      (0.450)     (0.468)
                                                         ----------    --------   --------   --------    ---------    --------

Net asset value, end of period                            $  11.110    $ 11.220   $ 11.090   $ 10.850     $ 11.100    $ 11.130
                                                         ==========    ========   ========   ========    =========    ========

Total return(3)                                                0.83%       4.99%      6.23%      1.74%        3.91%       9.23%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                   $  10,329    $  9,170   $  9,579   $  8,606     $  8,074    $  5,617
Ratio of expenses to average net assets                        1.68%       1.69%      1.70%      1.74%        1.70%       1.75%
Ratio of expenses to average net assets prior to
   expense limitation and expenses paid indirectly             1.69%       1.69%      1.70%      1.74%        1.70%       1.75%
Ratio of net investment income to average net assets           3.67%       3.71%      3.88%      4.01%        4.11%       4.34%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid
   indirectly                                                  3.66%       3.71%      3.88%      4.01%        4.11%       4.34%
Portfolio turnover                                                8%          8%        13%        30%          36%         64%


(1)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(2)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of this change for the year ended August 31, 2002 was an
      increase in net investment income per share of less than $0.001, a
      decrease in net realized and unrealized gain (loss) per share of less than
      $0.001, and an increase in the ratio of net investment income to average
      net assets of less than 0.01%. Per share data and ratios for periods prior
      to September 1, 2001 have not been restated to reflect this change in
      accounting.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return for the years ended August 31, 2005
      and 2001 reflect waivers and payment of fees by the manager of less than
      0.01%. Performance would have been lower had the expense limitation not
      been in effect.

See accompanying notes

                                       23



- --------------------------------------------------------------------------------
Notes                                              February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS

Voyageur Mutual Funds (the "Trust") is organized as a Delaware statutory trust
and offers five series: Delaware Tax-Free California Fund, Delaware Tax-Free
Idaho Fund, Delaware Minnesota High-Yield Municipal Bond Fund, Delaware National
High-Yield Municipal Bond Fund and Delaware Tax-Free New York Fund. Voyageur
Insured Funds (the "Trust") is organized as a Delaware statutory trust and
offers two series: Delaware Tax-Free Arizona Insured Fund and Delaware Tax-Free
Minnesota Insured Fund. Voyageur Mutual Funds II (the "Trust") is organized as a
Delaware statutory trust and offers one series: Delaware Tax-Free Colorado Fund.
These financial statements and related notes pertain to Delaware Tax-Free
Arizona Insured Fund, Delaware Tax-Free California Fund and Delaware Tax-Free
Colorado Fund (each a "Fund" and, collectively, the "Funds"). The above Trusts
are open-end investment companies. The Funds are considered non-diversified
under the Investment Company Act of 1940, as amended, and offer Class A, Class
B, and Class C shares. Class A shares are sold with a front-end sales charge of
up to 4.50%. Class B shares are sold with a contingent deferred sales charge
that declines from 4% to zero depending upon the period of time the shares are
held. Class B shares will automatically convert to Class A shares on a quarterly
basis approximately eight years after purchase. Class C shares are sold with a
contingent deferred sales charge of 1%, if redeemed during the first 12 months.

The investment objective of Delaware Tax-Free Arizona Insured Fund, Delaware
Tax-Free California Fund and Delaware Tax-Free Colorado Fund is to seek as high
a level of current income exempt from federal income tax and personal income tax
in their respective states, as is consistent with preservation of capital.

1.    Significant Accounting Policies

The following accounting policies are in accordance with U.S. generally accepted
accounting principles and are consistently followed by the Funds.

Security Valuation -- Long-term debt securities are valued by an independent
pricing service and such prices are believed to reflect the fair value of such
securities. Short-term debt securities having less than 60 days to maturity are
valued at amortized cost, which approximates market value. Open-end investment
companies are valued at their published net asset value. Other securities and
assets for which market quotations are not readily available are valued at fair
value as determined in good faith under the direction of each Fund's Board of
Trustees. In determining whether market quotations are readily available or fair
valuation will be used, various factors will be taken into consideration, such
as market closures, aftermarket trading or significant events after local market
trading (e.g., government actions or pronouncements, trading volume or
volatility on markets, exchanges among dealers, or news events).

Federal Income Taxes -- Each Fund intends to continue to qualify for federal
income tax purposes as a regulated investment company and make the requisite
distributions to shareholders. Accordingly, no provision for federal income
taxes has been made in the financial statements.

Class Accounting -- Investment income and common expenses are allocated to the
classes of each Fund on the basis of "settled shares" of each class in relation
to the net assets of each Fund. Realized and unrealized gain (loss) on
investments are allocated to the various classes of each Fund on the basis of
daily net assets of each class. Distribution expenses relating to a specific
class are charged directly to that class.

Use of Estimates -- The preparation of financial statements in conformity with
U.S. generally accepted accounting principles requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities at the date of the financial statements and the reported amounts of
revenues and expenses during the reporting period. Actual results could differ
from those estimates.

Other -- Expenses common to all funds within the Delaware Investments(R) Family
of Funds are allocated amongst the funds on the basis of average net assets.
Management fees and some other expenses are paid monthly. Security transactions
are recorded on the date the securities are purchased or sold (trade date) for
financial reporting purposes. Costs used in calculating realized gains and
losses on the sale of investment securities are those of the specific securities
sold. Interest income is recorded on the accrual basis. Discounts and premiums
are amortized to interest income over the lives of the respective securities.
Each Fund declares dividends daily from net investment income and pays such
dividends monthly and declares and pays distributions from net realized gain on
investments, if any, annually.

The Funds receive earnings credits from their custodian when positive cash
balances are maintained, which are used to offset custody fees. The expense paid
under the above arrangement is included in custodian fees and on the Statements
of Operations with the corresponding expense offset shown as "expense paid
indirectly."

2.    Investment Management, Administration Agreements and Other Transactions
      with Affiliates

In accordance with the terms of its respective investment management agreement,
each Fund pays Delaware Management Company (DMC), a series of Delaware
Management Business Trust and the investment manager, an annual fee based on
each Fund's average daily net assets as follows:



                                                  Delaware Tax-Free    Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
On the first $500 million                               0.500%               0.550%            0.550%
On the next $500 million                                0.475%               0.500%            0.500%
On the next $1.5 billion                                0.450%               0.450%            0.450%
In excess of $2.5 billion                               0.425%               0.425%            0.425%


                                       24



- --------------------------------------------------------------------------------
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

2.    Investment Management, Administration Agreements and Other Transactions
      with Affiliates (continued)

DMC has contractually agreed to waive that portion, if any, of its management
fee and reimburse each Fund to the extent necessary to ensure that annual
operating expenses, exclusive of taxes, interest, brokerage commissions,
distribution fees, certain insurance costs and extraordinary expenses, do not
exceed specified percentages of average daily net assets as shown below.



                                                  Delaware Tax-Free    Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
Operating expense limitation as a percentage of
   average daily net assets (per annum)                  0.53%               0.63%              0.68%
Expiration Date                                        12/29/05            12/29/05           12/29/05
Effective December 30, 2005, operating expense
   limitation as a percentage of average
   daily net assets (per annum)                          0.50%               0.63%              0.68%
Expiration Date                                        12/31/06            12/31/06           12/31/06


Delaware Service Company, Inc. (DSC), an affiliate of DMC, provides accounting,
administration, dividend disbursing and transfer agent services. Each Fund pays
DSC a monthly fee computed at the annual rate of 0.04% of each Fund's average
daily net assets for accounting and administration services. Each Fund pays DSC
a monthly fee based on the number of shareholder accounts for dividend
disbursing and transfer agent services.

Pursuant to a distribution agreement and distribution plan, each Fund pays
Delaware Distributors, L.P. (DDLP), the distributor and an affiliate of DMC, an
annual distribution and service fee not to exceed 0.25% of the average daily net
assets, of the Class A shares and 1.00% of the average daily net assets of the
Class B and C shares.

At February 28, 2006, each Fund had liabilities payable to affiliates as
follows:



                                                  Delaware Tax-Free    Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
Investment management fees payable to DMC              $ 40,979            $ 30,260           $115,160
Dividend disbursing, transfer agent, accounting
   and administration fees and other expenses
   payable to DSC                                        25,433              14,404             46,537
Distribution fees payable to DDLP                        33,834              32,361             57,992
Other expenses payable
   to DMC and affiliates*                                 9,315               3,997             10,792


*     DMC, as part of its administrative services, pays operating expenses on
      behalf of each Fund and is reimbursed on a periodic basis. Such expenses
      include items such as printing of shareholder reports, fees for audit,
      legal and tax services, registration fees and trustees' fees.

As provided in the investment management agreement, each Fund bears the cost of
certain legal services expenses, including internal legal services provided to
each Fund by DMC employees. For the six months ended February 28, 2006, Delaware
Tax-Free Arizona Insured Fund, Delaware Tax-Free California Fund and Delaware
Tax-Free Colorado Fund were charged $5,887, $3,421, and $10,518, respectively,
for internal legal services provided by DMC.

For the six months ended February 28, 2006, DDLP earned commissions on sales of
Class A shares for each Fund as follows:

            Delaware Tax-Free    Delaware Tax-Free  Delaware Tax-Free
           Arizona Insured Fund   California Fund     Colorado Fund
           --------------------  -----------------  -----------------
                 $  9,670                  --           $ 16,132

For the six months ended February 28, 2006, DDLP received gross contingent
deferred sales charge commissions on redemption of each Fund's Class A, Class B
and Class C shares. These commissions were entirely used to offset up-front
commissions previously paid by DDLP to broker-dealers on sales of those shares.
The amounts received were as follows:



                                                  Delaware Tax-Free    Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
Class A                                                $     --            $    115           $     --
Class B                                                   7,312               9,719              3,112
Class C                                                     238                 288                102


Certain officers of DMC, DSC and DDLP are officers and/or trustees of the Trust.
These officers and trustees are paid no compensation by the Funds.

                                       25



- --------------------------------------------------------------------------------
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

3.    Investments

For the six months ended February 28, 2006, the Funds made purchases and sales
of investment securities other than short-term investments as follows:



                                                   Delaware Tax-Free   Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
Purchases                                            $  5,528,545         $11,613,595        $ 10,552,215
Sales                                                   6,926,122           3,535,395          15,020,123


At February 28, 2006, the cost of investments for federal income tax purposes
has been estimated since the final tax characteristics cannot be determined
until the fiscal year end. At February 28, 2006, the cost of investments and
unrealized appreciation (depreciation) for each Fund were as follows:



                                                  Delaware Tax-Free    Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
Cost of investments                                  $149,094,216         $93,044,160        $263,396,739
                                                     ============         ===========        ============
Aggregate unrealized appreciation                    $  8,492,598         $ 4,556,041        $ 17,251,688
Aggregate unrealized depreciation                         (40,355)            (57,928)           (173,400)
                                                     ------------         -----------        ------------

Net unrealized appreciation                          $  8,452,243         $ 4,498,113        $ 17,078,288
                                                     ============         ===========        ============


4.    Dividend and Distribution Information

Income and long-term capital gain distributions are determined in accordance
with federal income tax regulations, which may differ from U.S. generally
accepted accounting principles. Additionally, net short-term gains on sales of
investment securities are treated as ordinary income for federal income tax
purposes. The tax character of dividends and distributions paid during the six
months ended February 28, 2006 and the year ended August 31, 2005 was as
follows:



                                                  Delaware Tax-Free    Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
Six Months Ended 2/28/06*
Tax-exempt income                                    $  3,136,845         $ 1,708,466        $  6,161,580

Year Ended 8/31/05
Tax-exempt income                                    $  5,887,149         $ 2,275,968        $ 12,970,896
Long-term capital gain                                    261,925                  --                  --
                                                     ------------         -----------        ------------
Total                                                $  6,149,074         $ 2,275,968        $ 12,970,896
                                                     ============         ===========        ============


*     Tax information for the period ended February 28, 2006 is an estimate and
      the tax character of dividends and distributions may be redesignated at
      fiscal year end.

The components of net assets are estimated since final tax characteristics
cannot be determined until fiscal year end. As of February 28, 2006, the
estimated components of net assets on a tax basis were as follows:



                                                   Delaware Tax-Free   Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
Shares of beneficial interest                        $153,572,016         $94,214,351        $276,096,365
Undistributed tax-exempt income                                --               1,300                  --
Other temporary differences                               (20,294)                 --                  --
Six month period realized gains (losses)                 (101,029)             43,809          (2,450,516)
Capital loss carryforwards                             (2,789,466)*          (806,875)         (6,682,763)
Post-October losses                                            --                 (56)                 --
Unrealized appreciation of investments                  8,452,243           4,498,113          17,078,288
                                                     ------------         -----------        ------------

Net assets                                           $159,113,470         $97,950,642        $284,041,374
                                                     ============         ===========        ============


*     The amount of this loss which can be utilized in subsequent years is
      subject to an annual limitation in accordance with the Internal Revenue
      Code due to the fund reorganization with Delaware Tax-Free Arizona Fund
      (see Note 6).

Post-October losses represent losses realized on investment transactions from
November 1, 2005 through February 28, 2006 that, in accordance with federal
income tax regulations, the Fund has elected to defer and treat as having arisen
in the following fiscal year.

                                       26



- --------------------------------------------------------------------------------
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

4.    Dividend and Distribution Information (continued)

For financial reporting purposes, capital accounts are adjusted to reflect the
tax character of permanent book/tax differences. Reclassifications are primarily
due to tax treatment of market discount and premium on certain debt instruments.
Results of operations and net assets were not affected by these
reclassifications. For the six months ended February 28, 2006, the Fund recorded
an estimate of these differences since the final tax characteristics cannot be
determined until fiscal year end.

                                                      Delaware Tax-Free
                                                        Colorado Fund
                                                     --------------------
    Undistributed net investment income                  $     (3,857)
    Accumulated net realized gain (loss)                        3,857

For federal income tax purposes, capital loss carryforwards may be carried
forward and applied against future capital gains. Capital loss carryforwards
remaining at August 31, 2005 will expire as follows:



                                                  Delaware Tax-Free    Delaware Tax-Free  Delaware Tax-Free
                                                 Arizona Insured Fund   California Fund     Colorado Fund
                                                 --------------------  -----------------  -----------------
                                                                                 
2008                                                 $  1,029,322         $        --        $         --
2009                                                           --             800,836           2,054,025
2011                                                       78,759               6,039                  --
2012                                                    1,681,385                  --           4,571,043
2013                                                           --                  --              57,695
                                                     ------------         -----------        ------------
Total                                                $  2,789,466         $   806,875        $  6,682,763
                                                     ============         ===========        ============


For the six months ended February 28, 2006, each Fund had capital gains
(losses), which may reduce (increase) the capital loss carryforwards as follows:

            Delaware Tax-Free    Delaware Tax-Free   Delaware Tax-Free
           Arizona Insured Fund   California Fund     Colorado Fund
           --------------------  -----------------  -----------------
               $   (101,029)        $    43,809        $ (2,450,516)

5.    Capital Shares

Transactions in capital shares were as follows:



                                                      Delaware Tax-Free      Delaware Tax-Free       Delaware Tax-Free
                                                    Arizona Insured Fund      California Fund          Colorado Fund
                                                    ---------------------  ----------------------  ----------------------
                                                    Six Months      Year    Six Months     Year     Six Months    Year
                                                      Ended        Ended      Ended       Ended       Ended       Ended
                                                     2/28/06      8/31/05    2/28/06     8/31/05     2/28/06     8/31/05
                                                                                              
Shares sold:
   Class A                                             300,079     596,855   1,196,673   1,654,876     652,833   1,352,576
   Class B                                               2,616      38,240      33,393     103,646       1,477      80,929
   Class C                                              48,608     108,394     251,422     310,646     126,118     124,689

Shares issued in connection with reorganization*:
   Class A                                                  --   1,668,528          --   2,134,239          --          --
   Class B                                                  --     599,233          --     547,132          --          --
   Class C                                                  --     271,696          --     118,422          --          --

Shares issued upon reinvestment of
  dividends and distributions:
   Class A                                             125,288     233,045      52,687      55,362     336,574     665,732
   Class B                                              12,645      23,191      14,634      20,826       9,789      23,640
   Class C                                               8,393      15,658       9,838      11,984      10,922      21,109
                                                    ----------  ----------  ----------  ----------  ----------  ----------
                                                       497,629   3,554,840   1,558,647   4,957,133   1,137,713   2,268,675
                                                    ----------  ----------  ----------  ----------  ----------  ----------

Shares repurchased:
   Class A                                            (442,853) (1,559,821)   (442,501)   (789,011) (1,265,677) (2,870,841)
   Class B                                             (96,728)   (187,131)   (194,943)   (391,206)    (95,351)   (299,511)
   Class C                                             (62,777)   (235,801)    (53,315)    (95,803)    (24,410)   (192,223)
                                                    ----------  ----------  ----------  ----------  ----------  ----------
                                                      (602,358) (1,982,753)   (690,759) (1,276,020) (1,385,438) (3,362,575)
                                                    ----------  ----------  ----------  ----------  ----------  ----------
Net increase (decrease)                               (104,729)  1,572,087     867,888   3,681,113    (247,725) (1,093,900)
                                                    ----------  ----------  ----------  ----------  ----------  ----------


*    See note 6

                                       27



- --------------------------------------------------------------------------------
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

5.    Capital Shares (continued)

For the six months ended February 28, 2006 and the year ended August 31, 2005,
the following shares were converted from Class B to Class A shares. The
respective amounts are included in Class B redemptions and Class A subscriptions
in the table above and the Statements of Changes in Net Assets.



                                         Six Months Ended                 Year Ended
                                            2/28/06                         8/31/05
                                   ----------------------------  -----------------------------
                                   Class B  Class A              Class B  Class A
                                   shares   shares     Value     shares   shares      Value
                                   -------  -------  ----------  -------  --------  ----------
                                                                  
Delaware Tax-Free Arizona
   Insured Fund                     48,039   48,082  $  548,352   40,161    40,197  $  460,050
Delaware Tax-Free California Fund   87,893   88,280   1,002,344   99,446    99,804   1,132,607
Delaware Tax-Free Colorado Fund     42,477   42,494     470,301  179,542   179,584   1,993,160


6.    Fund Reorganization

Effective April 11, 2005, Delaware Tax-Free Arizona Insured Fund and Delaware
Tax-Free California Fund acquired all of the assets and assumed all of the
liabilities of Delaware Tax-Free Arizona Fund and Delaware Tax-Free California
Insured Fund, respectively, each an open-end investment company, pursuant to
Plans and Agreements of Reorganization (the "Reorganizations"). The shareholders
of Delaware Tax-Free Arizona Fund and Delaware Tax-Free California Insured Fund
received shares of the respective class of Delaware Tax-Free Arizona Insured
Fund and Delaware Tax-Free California Fund, respectively, equal to the aggregate
net asset value of their shares prior to the Reorganizations based on the net
asset value per share of the respective classes of Delaware Tax-Free Arizona
Insured Fund and Delaware Tax-Free California Fund.

The Reorganizations were treated as non-taxable events and, accordingly, each of
Delaware Tax-Free Arizona Insured Fund's and Delaware Tax-Free California Fund's
basis in the securities acquired reflected the historical cost basis as of the
date of transfer. The net assets, net unrealized appreciation and accumulated
net realized gain (loss) of Delaware Tax-Free Arizona Fund and Delaware Tax-Free
California Insured Fund as of the close of business on April 8, 2005, were as
follows:



                                                         Net Unrealized   Accumulated Net
                                             Net Assets   Appreciation   Realized Gain/Loss
                                            -----------  --------------  ------------------
                                                                
Delaware Tax-Free Arizona Fund              $28,887,777  $    1,078,069  $       (3,053,750)*
Delaware Tax-Free California Insured Fund    31,492,746       1,782,779                  --


*     Includes prior year capital loss carryforwards

The net assets of Delaware Tax-Free Arizona Insured Fund and Delaware Tax-Free
California Fund prior to the Reorganizations were $134,516,468 and $46,891,287,
respectively. The combined net assets of Delaware Tax-Free Arizona Insured Fund
and Delaware Tax-Free California Fund after the Reorganization were $163,404,245
and $78,384,033, respectively.

7.    Line of Credit

Each Fund, along with certain other funds in the Delaware Investments(R) Family
of Funds (the "Participants"), participates in a $225,000,000 revolving line of
credit facility to be used for temporary or emergency purposes as an additional
source of liquidity to fund redemptions of investor shares. The Participants are
charged an annual commitment fee, which is allocated across the Participants on
the basis of each fund's allocation of the entire facility. The Participants may
borrow up to a maximum of one third of their net assets under the agreement. The
Funds had no amounts outstanding as of February 28, 2006, or at any time during
the period.

                                       28



- --------------------------------------------------------------------------------
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

8.    Credit and Market Risk

The Funds concentrate their investments in securities issued by municipalities.
The value of these investments may be adversely affected by new legislation
within the states, regional or local economic conditions, and differing levels
of supply and demand for municipal bonds. Many municipalities insure repayment
for their obligations. Although bond insurance reduces the risk of loss due to
default by an issuer, such bonds remain subject to the risk that market value
may fluctuate for other reasons and there is no assurance that the insurance
company will meet its obligations. These securities have been identified in the
Statements of Net Assets.

Each Fund may invest in advanced refunded bonds, escrow secured bonds or
defeased bonds. Under current federal tax laws and regulations, state and local
government borrowers are permitted to refinance outstanding bonds by issuing new
bonds. The issuer refinances the outstanding debt to either reduce interest
costs or to remove or alter restrictive covenants imposed by the bonds being
refinanced. A refunding transaction where the municipal securities are being
refunded within 90 days or less from the issuance of the refunding issue is
known as a "current refunding". Advance refunded bonds are bonds in which the
refunded bond issue remains outstanding for more than 90 days following the
issuance of the refunding issue. In an advance refunding, the issuer will use
the proceeds of a new bond issue to purchase high grade interest bearing debt
securities which are then deposited in an irrevocable escrow account held by an
escrow agent to secure all future payments of principal and interest and bond
premium of the advance refunded bond. Bonds are "escrowed to maturity" when the
proceeds of the refunding issue are deposited in an escrow account for
investment sufficient to pay all of the principal and interest on the original
interest payment and maturity dates. Bonds are considered "pre-refunded" when
the refunding issue's proceeds are escrowed only until a permitted call date or
dates on the refunded issue with the refunded issue being redeemed at that time,
including any required premium. Bonds become "defeased" when the rights and
interests of the bondholders and of their lien on the pledged revenues or other
security under the terms of the bond contract are substituted with an
alternative source of revenues (the escrow securities) sufficient to meet
payments of principal and interest to maturity or to the first call dates.
Escrowed secured bonds will often receive a rating of AAA from Moody's Investors
Service, Inc., Standard & Poor's Rating Group, and/or Fitch due to the strong
credit quality of the escrow securities and the irrevocable nature of the escrow
deposit agreement. The Tax-Free Insured Funds will purchase escrow secured bonds
without additional insurance only where the escrow is invested in securities of
the U.S. government or agencies or instrumentalities of the U.S. government.

Each Fund may invest up to 15% of its total assets in illiquid securities, which
may include securities with contractual restrictions on resale, securities
exempt from registration under Rule 144A of the Securities Act of 1933, as
amended, and other securities which may not be readily marketable. The relative
illiquidity of these securities may impair each Fund from disposing of them in a
timely manner and at a fair price when it is necessary or desirable to do so.
While maintaining oversight, each Fund's Board of Trustees has delegated to DMC
the day-to-day functions of determining whether individual securities are liquid
for purposes of each Fund's limitation on investments in illiquid assets. At
February 28, 2006, there were no Rule 144A securities and no securities have
been determined to be illiquid under the Funds' Liquidity Procedures.

9.    Contractual Obligations

The Funds enter into contracts in the normal course of business that contain a
variety of indemnifications. The Funds' maximum exposure under these
arrangements is unknown. However, the Funds have not had prior claims or losses
pursuant to these contracts. Management has reviewed the Funds' existing
contracts and expects the risk of loss to be remote.

                                       29



- --------------------------------------------------------------------------------
About
- --------------------------------------------------------------------------------
   THE ORGANIZATION

This semiannual report is for the information of Delaware Tax-Free Arizona
Insured Fund, Delaware Tax-Free California Fund and Delaware Tax-Free Colorado
Fund shareholders, but it may be used with prospective investors when preceded
or accompanied by a current prospectus for Delaware Tax-Free Arizona Insured
Fund, Delaware Tax-Free California Fund and Delaware Tax-Free Colorado Fund and
the Delaware Investments(R) Performance Update for the most recently completed
calendar quarter. The prospectus sets forth details about charges, expenses,
investment objectives, and operating policies of the Funds. You should read the
prospectus carefully before you invest. The figures in this report represent
past results that are not a guarantee of future results. The return and
principal value of an investment in each Fund will fluctuate so that shares,
when redeemed, may be worth more or less than their original cost.

Board of Trustees

Jude T. Driscoll
Chairman
Delaware Investments(R) Family of Funds
Philadelphia, PA

Thomas L. Bennett
Private Investor
Rosemont, PA

John A. Fry
President
Franklin & Marshall College
Lancaster, PA

Anthony D. Knerr
Founder/Managing  Director
Anthony Knerr & Associates
New York, NY

Lucinda S. Landreth
Former Chief Investment Officer
Assurant, Inc.
Philadelphia, PA

Ann R. Leven
Former Treasurer/Chief Fiscal Officer
National Gallery of Art
Washington, DC

Thomas F. Madison
President and Chief Executive Officer
MLM Partners, Inc.
Minneapolis, MN

Janet L. Yeomans
Vice President and Treasurer
3M Corporation
St. Paul, MN

J. Richard Zecher
Founder
Investor Analytics
Scottsdale, AZ

Affiliated Officers

Michael P. Bishof
Senior Vice President and
Chief Financial Officer
Delaware Investments(R) Family of Funds
Philadelphia, PA

David F. Connor
Vice President, Deputy General Counsel and Secretary
Delaware Investments(R) Family of Funds
Philadelphia, PA

David P. O'Connor
Senior Vice President, General Counsel and Chief Legal Officer
Delaware Investments(R) Family of Funds
Philadelphia, PA

John J. O'Connor
Senior Vice President and Treasurer
Delaware Investments(R) Family of Funds
Philadelphia, PA

Contact Information

Investment Manager
Delaware Management Company,
a Series of Delaware Management Business Trust
Philadelphia, PA

National Distributor
Delaware Distributors, L.P.
Philadelphia, PA

Shareholder Servicing, Dividend
Disbursing and Transfer Agent
Delaware Service Company, Inc.
2005 Market Street
Philadelphia, PA 19103-7094

For Shareholders
800 523-1918

For Securities Dealers and Financial
Institutions Representatives Only
800 362-7500

Web Site
www.delawareinvestments.com

Delaware Investments is the marketing name for Delaware Management Holdings,
Inc. and its subsidiaries.

- --------------------------------------------------------------------------------

Each Fund files its complete schedule of portfolio holdings with the Securities
and Exchange Commission for the first and third quarters of each fiscal year on
Form N-Q. Each Fund's Forms N-Q, as well as a description of the policies and
procedures that each Fund uses to determine how to vote proxies (if any)
relating to portfolio securities are available without charge (i) upon request,
by calling 800 523-1918; (ii) on the Funds' Web site at
http://www.delawareinvestments.com; and (iii) on the Commission's Web site at
http://www.sec.gov. Each Fund's Forms N-Q may be reviewed and copied at the
Commission's Public Reference Room in Washington, DC; information on the
operation of the Public Reference Room may be obtained by calling 800 SEC-0330.

Information (if any) regarding how each Fund voted proxies relating to portfolio
securities during the most recently disclosed 12-month period ended June 30 is
available without charge (i) through the Funds' Web site at
http://www.delawareinvestments.com; and (ii) on the Commission's Web site at
http://www.sec.gov.

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                                       30



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[DELAWARE INVESTMENTS(R) LOGO]

- --------------------------------------------------------------------------------


Contact Information

Web Site
www.delawareinvestments.com

E-mail
service@delinvest.com

Shareholder Service Center
800 523-1918

Call the Shareholder Service Center Monday to Friday, 8:00 a.m. to 7:00 p.m.
Eastern Time:

o     For fund information, literature, price, yield, and performance figures.

o     For information on existing regular investment accounts and retirement
      plan accounts including wire investments, wire redemptions, telephone
      redemptions, and telephone exchanges.

Delaphone Service
800 362-FUND (800 362-3863)

o     For convenient access to account information or current performance
      information on all Delaware Investments(R) Funds seven days a week, 24
      hours a day, use this Touch-Tone(R) service.

- --------------------------------------------------------------------------------

(330)                                                         Printed in the USA
SA-WEST [2/06] CGI 4/06                                     SEMI-WESTERN PO10912


- --------------------------------------------------------------------------------

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FIXED INCOME                                      [DELAWARE INVESTMENTS(R) LOGO]

- --------------------------------------------------------------------------------

Semiannual Report FEBRUARY 28, 2006
- --------------------------------------------------------------------------------

                              DELAWARE TAX-FREE MINNESOTA FUND

                              DELAWARE TAX-FREE MINNESOTA INSURED FUND

                              DELAWARE TAX-FREE MINNESOTA INTERMEDIATE FUND

                              DELAWARE MINNESOTA HIGH-YIELD MUNICIPAL BOND FUND

[POWERED BY RESEARCH(R) LOGO]



Table
   OF CONTENTS

- ------------------------------------------------------------
DISCLOSURE OF FUND EXPENSES                              1
- ------------------------------------------------------------
SECTOR ALLOCATIONS                                       3
- ------------------------------------------------------------
FINANCIAL STATEMENTS:

   Statements of Net Assets                              5

   Statements of Operations                             17

   Statements of Changes in Net Assets                  18

   Financial Highlights                                 20

   Notes to Financial Statements                        32

- ------------------------------------------------------------
ABOUT THE ORGANIZATION                                  38
- ------------------------------------------------------------

Funds are not FDIC insured and are not guaranteed. It is possible to lose the
principal amount invested.

Mutual fund advisory services provided by Delaware Management Company, a series
of Delaware Management Business Trust, which is a registered investment advisor.

(C)2006 Delaware Distributors, L.P.



- --------------------------------------------------------------------------------
Disclosure                 For the Period September 1, 2005 to February 28, 2006
- --------------------------------------------------------------------------------
   OF FUND EXPENSES

As a shareholder of a Fund, you incur two types of costs: (1) transaction costs,
including sales charges (loads) on purchase payments, reinvested dividends, or
other distributions; redemption fees; and exchange fees; and (2) ongoing costs,
including management fees; distribution and/or service (12b-1) fees; and other
Fund expenses. The following examples are intended to help you understand your
ongoing costs (in dollars) of investing in a Fund and to compare these costs
with the ongoing costs of investing in other mutual funds.

The Examples are based on an investment of $1,000 invested at the beginning of
the period and held for the entire period September 1, 2005 to February 28,
2006.

Actual Expenses

The first section of the tables shown, "Actual Fund Return," provides
information about actual account values and actual expenses. You may use the
information in this section of the table, together with the amount you invested,
to estimate the expenses that you paid over the period. Simply divide your
account value by $1,000 (for example, an $8,600 account value divided by $1,000
= 8.6), then multiply the result by the number in the first section under the
heading entitled "Expenses Paid During Period" to estimate the expenses you paid
on your account during this period.

Hypothetical Example for Comparison Purposes

The second section of the tables shown, "Hypothetical 5% Return," provides
information about hypothetical account values and hypothetical expenses based on
the Funds' actual expense ratios and an assumed rate of return of 5% per year
before expenses, which is not the Funds' actual return. The hypothetical account
values and expenses may not be used to estimate the actual ending account
balance or expenses you paid for the period. You may use this information to
compare the ongoing costs of investing in a Fund and other funds. To do so,
compare this 5% hypothetical example with the 5% hypothetical examples that
appear in the shareholder reports of the other funds.

Please note that the expenses shown in the tables are meant to highlight your
ongoing costs only and do not reflect any transactional costs, such as sales
charges (loads), redemption fees, or exchange fees. Therefore, the second
section of each table is useful in comparing ongoing costs only, and will not
help you determine the relative total costs of owning different funds. In
addition, if these transactional costs were included, your costs would have been
higher. Each Fund's actual expenses shown in the tables reflect fee waivers in
effect. The expenses shown in each table assume reinvestment of all dividends
and distributions.

"Expenses Paid During Period" are equal to the Funds' annualized expense ratio,
multiplied by the average account value over the period, multiplied by 181/365
(to reflect the one-half year period).

Delaware Tax-Free Minnesota Fund
Expense Analysis of an Investment of $1,000



                                                                                             Expenses
                                                     Beginning      Ending                  Paid During
                                                      Account       Account    Annualized     Period
                                                       Value         Value       Expense     9/1/05 to
                                                       9/1/05       2/28/06       Ratio       2/28/06
- -------------------------------------------------------------------------------------------------------
                                                                                
Actual Fund Return
Class A                                              $ 1,000.00   $ 1,009.20      0.94%       $ 4.68
Class B                                                1,000.00     1,005.40      1.69%         8.40
Class C                                                1,000.00     1,005.40      1.69%         8.40
- -------------------------------------------------------------------------------------------------------
Hypothetical 5% Return (5% return before expenses)
Class A                                              $ 1,000.00   $ 1,020.13      0.94%       $ 4.71
Class B                                                1,000.00     1,016.41      1.69%         8.45
Class C                                                1,000.00     1,016.41      1.69%         8.45
- -------------------------------------------------------------------------------------------------------


Delaware Tax-Free Minnesota Insured Fund
Expense Analysis of an Investment of $1,000



                                                                                             Expenses
                                                     Beginning       Ending                 Paid During
                                                      Account       Account    Annualized     Period
                                                       Value         Value       Expense     9/1/05 to
                                                       9/1/05       2/28/06       Ratio       2/28/06
- -------------------------------------------------------------------------------------------------------
                                                                                
Actual Fund Return
Class A                                              $ 1,000.00   $ 1,007.30      0.89%       $ 4.43
Class B                                                1,000.00     1,003.60      1.64%         8.15
Class C                                                1,000.00     1,004.40      1.64%         8.15
- -------------------------------------------------------------------------------------------------------
Hypothetical 5% Return (5% return before expenses)
Class A                                              $ 1,000.00   $ 1,020.38      0.89%       $ 4.46
Class B                                                1,000.00     1,016.66      1.64%         8.20
Class C                                                1,000.00     1,016.66      1.64%         8.20
- -------------------------------------------------------------------------------------------------------


                                        1



- --------------------------------------------------------------------------------
Disclosure                 For the Period September 1, 2005 to February 28, 2006
- --------------------------------------------------------------------------------
   OF FUND EXPENSES (CONTINUED)

Delaware Tax-Free Minnesota Intermediate Fund
Expense Analysis of an Investment of $1,000



                                                                                              Expenses
                                                     Beginning      Ending                  Paid During
                                                      Account       Account    Annualized     Period
                                                       Value         Value      Expense      9/1/05 to
                                                       9/1/05       2/28/06      Ratio        2/28/06
- -------------------------------------------------------------------------------------------------------
                                                                                
Actual Fund Return
Class A                                              $ 1,000.00   $ 1,007.30      0.75%       $ 3.73
Class B                                                1,000.00     1,003.10      1.60%         7.95
Class C                                                1,000.00     1,003.10      1.60%         7.95
- -------------------------------------------------------------------------------------------------------
Hypothetical 5% Return (5% return before expenses)
Class A                                              $ 1,000.00   $ 1,021.08      0.75%       $ 3.76
Class B                                                1,000.00     1,016.86      1.60%         8.00
Class C                                                1,000.00     1,016.86      1.60%         8.00
- -------------------------------------------------------------------------------------------------------


Delaware Minnesota High-Yield Municipal Bond Fund
Expense Analysis of an Investment of $1,000



                                                                                              Expenses
                                                     Beginning      Ending                  Paid During
                                                      Account       Account    Annualized     Period
                                                       Value         Value      Expense      9/1/05 to
                                                       9/1/05       2/28/06      Ratio        2/28/06
- -------------------------------------------------------------------------------------------------------
                                                                                
Actual Fund Return
Class A                                              $ 1,000.00   $ 1,011.50      0.89%       $ 4.44
Class B                                                1,000.00     1,007.70      1.64%         8.16
Class C                                                1,000.00     1,007.70      1.64%         8.16
- -------------------------------------------------------------------------------------------------------
Hypothetical 5% Return (5% return before expenses)
Class A                                              $ 1,000.00   $ 1,020.38      0.89%       $ 4.46
Class B                                                1,000.00     1,016.66      1.64%         8.20
Class C                                                1,000.00     1,016.66      1.64%         8.20
- -------------------------------------------------------------------------------------------------------


                                        2



- --------------------------------------------------------------------------------
Sector Allocations                                       As of February 28, 2006
- --------------------------------------------------------------------------------

Sector designations may be different than the sector designations presented in
other Fund materials.

DELAWARE TAX-FREE MINNESOTA FUND
                                                    Percentage
Sector                                            of Net Assets
- ---------------------------------------------------------------
Municipal Bonds                                      94.57%
- ---------------------------------------------------------------
Airport Revenue Bonds                                 5.17%

Combined Utilities                                    0.26%

Continuing Care/Retirement Revenue Bonds              4.39%

Corporate-Backed Revenue Bonds                        4.16%

Dedicated Tax & Fees Revenue Bonds                    1.26%

Electric & Gas Revenue Bonds                         13.15%

Escrowed to Maturity Bonds                            0.33%

Higher Education Revenue Bonds                        4.75%

Hospital Revenue Bonds                               19.20%

Multifamily Housing Revenue Bonds                     7.46%

Municipal Lease Revenue Bonds                         2.56%

Political Subdivision General Obligation Bonds        3.81%

Pre-Refunded Bonds                                    9.24%

School District General Obligation Bonds             10.20%

Single Family Housing Revenue Bonds                   1.09%

State General Obligation Bonds                        4.10%

Tax Increment/Special Assessment Bonds                0.50%

Territorial General Obligation Bonds                  1.58%

Water & Sewer Revenue Bonds                           1.36%
- ---------------------------------------------------------------
Short-Term Investments                                4.81%
- ---------------------------------------------------------------
Money Market Instruments                              0.70%

Variable Rate Demand Notes                            4.11%
- ---------------------------------------------------------------
Total Market Value of Securities                     99.38%
- ---------------------------------------------------------------
Receivables and Other Assets Net of Liabilities       0.62%
- ---------------------------------------------------------------
Total Net Assets                                    100.00%
- ---------------------------------------------------------------

DELAWARE TAX-FREE MINNESOTA INSURED FUND

                                                    Percentage
Sector                                            of Net Assets
- ---------------------------------------------------------------
Municipal Bonds                                      97.41%
- ---------------------------------------------------------------
Airport Revenue Bonds                                 4.73%

Combined Utilities                                    0.80%

Corporate-Backed Revenue Bonds                        0.77%

Dedicated Tax & Fees Revenue Bonds                    0.80%

Electric & Gas Revenue Bonds                          6.44%

Escrowed to Maturity Bonds                           17.43%

Higher Education Revenue Bonds                        5.90%

Hospital Revenue Bonds                               16.58%

Multifamily Housing Revenue Bonds                     5.63%

Municipal Lease Revenue Bonds                         5.26%

Political Subdivision General Obligation Bonds        0.56%

Pre-Refunded Bonds                                    7.90%

School District General Obligation Bonds             22.03%

Single Family Housing Revenue Bonds                   0.14%

State General Obligation Bonds                        2.44%
- ---------------------------------------------------------------
Short-Term Investments                                1.57%
- ---------------------------------------------------------------
Money Market Instruments                              0.30%

Variable Rate Demand Notes                            1.27%
- ---------------------------------------------------------------
Total Market Value of Securities                     98.98%
- ---------------------------------------------------------------
Receivables and Other Assets Net of Liabilities       1.02%
- ---------------------------------------------------------------
Total Net Assets                                    100.00%
- ---------------------------------------------------------------

                                        3



- --------------------------------------------------------------------------------
Sector Allocations                                       As of February 28, 2006
- --------------------------------------------------------------------------------

Sector designations may be different than the sector designations presented in
other Fund materials.

DELAWARE TAX-FREE MINNESOTA INTERMEDIATE FUND

                                                   Percentage
Sector                                            of Net Assets
- ---------------------------------------------------------------
Municipal Bonds                                      97.89%
- ---------------------------------------------------------------
Airport Revenue Bonds                                 1.44%

Continuing Care/Retirement Revenue Bonds              5.16%

Electric & Gas Revenue Bonds                          7.05%

Escrowed to Maturity Bonds                            2.06%

General Corporate Bonds                               1.92%

Higher Education Revenue Bonds                        4.79%

Hospital Revenue Bonds                               15.08%

Library/Museum Revenue Bonds                          4.19%

Multifamily Housing Revenue Bonds                     4.57%

Municipal Lease Revenue Bonds                         4.00%

Political Subdivision General Obligation Bonds        8.63%

Pre-Refunded Bonds                                    4.43%

School District General Obligation Bonds             23.20%

Single Family Housing Revenue Bonds                   2.41%

State General Obligation Bonds                        7.03%

Territorial General Obligation Bonds                  1.93%
- ---------------------------------------------------------------
Short-Term Investments                                1.91%
- ---------------------------------------------------------------
Money Market Instruments                              1.91%
- ---------------------------------------------------------------
Total Market Value of Securities                     99.80%
- ---------------------------------------------------------------
Receivables and Other Assets Net of Liabilities       0.20%
- ---------------------------------------------------------------
Total Net Assets                                    100.00%
- ---------------------------------------------------------------

DELAWARE MINNESOTA HIGH-YIELD MUNICIPAL BOND FUND

                                                   Percentage
Sector                                            of Net Assets
- ---------------------------------------------------------------
Municipal Bonds                                      95.63%
- ---------------------------------------------------------------
Airline Revenue Bonds                                 0.67%

Airport Revenue Bonds                                 2.07%

Continuing Care/Retirement Revenue Bonds             17.34%

Corporate-Backed Revenue Bonds                        3.50%

Dedicated Tax & Fees Revenue Bonds                    1.07%

Electric & Gas Revenue Bonds                          8.84%

Higher Education Revenue Bonds                        4.68%

Hospital Revenue Bonds                               21.38%

Multifamily Housing Revenue Bonds                    14.62%

Municipal Lease Revenue Bonds                         2.61%

Political Subdivision General Obligation Bonds        4.26%

Pre-Refunded Bonds                                    7.00%

School District General Obligation Bonds              2.90%

Single Family Housing Revenue Bonds                   0.80%

State General Obligation Bonds                        1.07%

Tax Increment/Special Assessment Bonds                2.31%

Territorial General Obligation Bonds                  0.51%
- ---------------------------------------------------------------
Short-Term Investments                                4.92%
- ---------------------------------------------------------------
Money Market Instruments                              1.14%

Variable Rate Demand Notes                            3.78%
- ---------------------------------------------------------------
Total Market Value of Securities                    100.55%
- ---------------------------------------------------------------
Liabilities Net of Receivables and Other Assets      (0.55%)
- ---------------------------------------------------------------
Total Net Assets                                    100.00%
- ---------------------------------------------------------------

                                        4



- --------------------------------------------------------------------------------
                                                Delaware Tax-Free Minnesota Fund
Statements                                      February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF NET ASSETS

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds - 94.57%
- --------------------------------------------------------------------------------
Airport Revenue Bonds - 5.17%
   Minneapolis/St. Paul Metropolitan Airports
      Commission Revenue Series A
      5.00% 1/1/22 (AMBAC)                          $ 3,440,000   $   3,554,002
      5.00% 1/1/35 (AMBAC)                            5,145,000       5,374,569
      5.25% 1/1/16(MBIA)                              1,460,000       1,572,289
      5.25% 1/1/32 (FGIC)                             5,000,000       5,285,900
   Minneapolis/St. Paul Metropolitan Airports
      Commission Revenue Series C
      5.25% 1/1/32(FGIC)                              2,250,000       2,378,655
      5.50% 1/1/17 (FGIC)                             2,500,000       2,685,625
                                                                  -------------
                                                                     20,851,040
                                                                  -------------
Combined Utilities - 0.26%
   Shakopee Public Utilities Commission
      Revenue 5.125% 2/1/26 (MBIA)                    1,000,000       1,034,920
                                                                  -------------
                                                                      1,034,920
                                                                  -------------
Continuing Care/Retirement Revenue Bonds - 4.39%
   Apple Valley Economic Development
      Authority Health Care Revenue
      (Augustana Home St. Paul Project)
      Series A 6.00% 1/1/40                           2,700,000       2,733,966
      (Evercare Senior Living Projects)
      Series A 6.125% 6/1/35                          4,000,000       3,980,680
   Bloomington Housing & Redevelopment
      Authority Housing Revenue (Senior
      Summerhouse Bloomington Project,
      Presbyterian Homes Housing &
      Assisted Living, Inc.) 6.125% 5/1/35            3,420,000       3,495,479
   Minneapolis Health Care Facility Revenue
      (Jones-Harrison Residence Project)
      5.60% 10/1/30                                   1,550,000       1,551,163
   Minnesota Agriculture & Economic
      Development Board Revenue
      (Benedictine Health Systems)
      5.75% 2/1/29                                    1,895,000       1,917,948
   Rochester Multifamily Revenue
      (Wedum Shorewood Campus Project)
      6.60% 6/1/36                                    3,890,000       4,020,510
                                                                  -------------
                                                                     17,699,746
                                                                  -------------
Corporate-Backed Revenue Bonds - 4.16%
   Cloquet Pollution Control Revenue
      (Potlatch Corp. Project) 5.90% 10/1/26          6,500,000       6,585,085
   Sartell Environmental Improvement
      Revenue (International Paper)
      Series A 5.20% 6/1/27                           5,465,000       5,595,559
   Seaway Port Authority of Duluth Industrial
      Development Dock & Wharf Revenues
      (Cargill, Inc. Project)
      Series E 6.125% 11/1/14                         4,500,000       4,608,045
                                                                  -------------
                                                                     16,788,689
                                                                  -------------
Dedicated Tax & Fees Revenue Bonds - 1.26%
   ^Minneapolis Community Development
      Agency Tax Increment Revenue
      6.674% 9/1/09 (MBIA)                            5,750,000       5,086,220
                                                                  -------------
                                                                      5,086,220
                                                                  -------------

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Electric & Gas Revenue Bonds - 13.15%
   Chaska Electric Revenue (Generating
      Facilities) Series A 5.00% 10/1/30            $ 3,000,000   $   3,106,230
   Laurentian Energy Authority I Series A
      5.00% 12/1/21                                   8,000,000       8,104,879
   Minnesota State Municipal Power Agency
      Series A 5.00% 10/1/34                          4,250,000       4,388,550
      Series A 5.125% 10/1/29                         3,000,000       3,138,780
      5.00% 10/1/35                                   3,000,000       3,106,230
   Northern Minnesota Municipal Power
      Agency Electric System Revenue
     ^Series A 5.849% 1/1/09 (AMBAC)                  3,815,000       3,455,818
      Series B 4.75% 1/1/20 (AMBAC)                   2,500,000       2,582,675
   Rochester Electric Utilities Revenue
      5.25% 12/1/30                                   4,915,000       5,127,623
   Southern Minnesota Municipal Power
      Agency Supply System Revenue Series A
      5.00% 1/1/12 (AMBAC)                            4,205,000       4,504,438
      5.00% 1/1/13 (MBIA)                             5,820,000       6,271,516
      5.25% 1/1/15 (AMBAC)                            3,000,000       3,320,370
 **Southern Minnesota Municipal Power
      Agency Supply System Revenue,
      Inverse Floater ROLs
      Series II-R-189-3 7.196% 1/1/14 (AMBAC)         2,000,000       2,397,040
      Series II-R-189 7.316% 1/1/15 (AMBAC)           2,950,000       3,580,061
                                                                  -------------
                                                                     53,084,210
                                                                  -------------
Escrowed to Maturity Bonds - 0.33%
   Southern Minnesota Municipal Power
      Agency Supply System Revenue
      Series B 5.50% 1/1/15 (AMBAC)                     990,000       1,058,389
   Western Minnesota Municipal Power
      Agency Supply Revenue Series A
      9.75% 1/1/16 (MBIA)                               185,000         269,649
                                                                  -------------
                                                                      1,328,038
                                                                  -------------
Higher Education Revenue Bonds - 4.75%
   Minnesota State Colleges & Universities
      Revenue Fund Series A
      5.00% 10/1/29 (MBIA)                            1,665,000       1,769,878
   Minnesota State Higher Education
      Facilities Authority Revenue
      (Augsburg College) Series 6-C
      5.00% 5/1/20                                    1,250,000       1,303,138
      (College of St. Benedict) Series 4-G
      6.20% 3/1/16                                    1,000,000       1,001,520
      (Hamline University) Series 4-1
      6.00% 10/1/12                                     270,000         271,909
      6.00% 10/1/16                                     390,000         394,298
      (St. Catherine College) Series 5-N1
      5.25% 10/1/22                                   1,500,000       1,572,645
      5.375% 10/1/32                                  1,000,000       1,052,010
   University of Minnesota
      Series A 5.50% 7/1/21                           2,000,000       2,313,420
 **University of Minnesota,
      Inverse Floater ROLs Series II-R-29
      7.683% 7/1/21                                   5,250,000       6,895,349
      8.19% 7/1/18                                    1,920,000       2,612,506
                                                                  -------------
                                                                     19,186,673
                                                                  -------------

                                        5



- --------------------------------------------------------------------------------
                                                Delaware Tax-Free Minnesota Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Hospital Revenue Bonds - 19.20%
   Bemidji Hospital Facilities First Meeting
      Revenue (North Country Health
      Services)
      5.00% 9/1/24 (RADIAN)                         $   740,000   $     769,985
      6.05% 9/1/16                                      600,000         600,978
      6.05% 9/1/24                                    1,825,000       1,827,902
   Breckenridge Catholic Health Initiatives
      5.00% 5/1/30                                    2,000,000       2,092,720
   Duluth Economic Development Authority
      Health Care Facilities Revenue Benedictine
      Health System (St. Mary's Hospital)
      5.25% 2/15/33                                  10,000,000      10,331,499
      5.50% 2/15/23                                   1,000,000       1,065,950
   Maple Grove Health Care Facilities Revenue
      (North Memorial Health Care)
      5.00% 9/1/29                                    1,000,000       1,035,590
      5.00% 9/1/35                                    5,850,000       6,012,689
   Marshall Medical Center Gross Revenue
      (Weiner Memorial Medical Center
      Project) 6.00% 11/1/28                          1,000,000       1,047,280
   Minneapolis Health Care System Revenue
      (Allina Health Systems) Series A
      5.75% 11/15/32                                  9,500,000      10,206,420
      (Fairview Health Services) Series D
      5.00% 11/15/30 (AMBAC)                          1,500,000       1,580,130
      5.00% 11/15/34 (AMBAC)                          2,500,000       2,625,650
   Minnesota Agricultural & Economic
      Development Broad Revenue
      (Fairview Health Care System)
      Series A 6.375% 11/15/29                           15,000          16,293
   Rochester Health Care Facilities Revenue
      (Mayo Foundation) Series B
      5.50% 11/15/27                                    700,000         731,129
 **Rochester Health Care Facilities Revenue
      (Mayo Foundation),
      Inverse Floater ROLs Series II-R-28
      Series A 7.683% 11/15/27                        2,100,000       2,286,795
      Series B 7.683% 11/15/27                        8,375,000       9,119,956
   Shakopee Health Care Facilities Revenue
      (St. Francis Regional Medical Center)
      5.10% 9/1/25                                    2,000,000       2,068,740
      5.25% 9/1/34                                    7,000,000       7,223,790
   St. Louis Park Health Care Facilities Revenue
      (Park Nicollet Health Services)
      Series B 5.25% 7/1/30                           9,420,000       9,790,018
   St. Paul Housing & Redevelopment
      Authority Hospital Revenue
      (Health East Project)
      Series A 5.70% 11/1/15                          1,300,000       1,346,579
      6.00% 11/15/35                                  4,340,000       4,703,735
   Washington County Housing &
      Redevelopment Authority Hospital Facilities
        Revenue
      (Health East Project) 5.50% 11/15/27            1,000,000       1,021,320
                                                                  -------------
                                                                     77,505,148
                                                                  -------------
Multifamily Housing Revenue Bonds - 7.46%
   Brooklyn Center Multifamily Housing
      Revenue (Shingle Creek)
      5.40% 5/20/43 (GNMA) (AMT)                      1,000,000       1,027,530

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Multifamily Housing Revenue Bonds (continued)
   Carver County Housing & Redevelopment
      Authority Multifamily Revenue
      (Lake Grace Apartments Project)
      Series A 6.00% 7/1/28                         $ 1,435,000   $   1,475,654
   Eden Prairie Multifamily Housing Revenue
      (Tanager Creek Apartments)
      Series A 8.05% 6/20/31 (GNMA)                   7,605,000       7,883,495
   Hopkins Multifamily Housing Revenue
      (Hopkins Renaissance Project-Section 8)
      6.375% 4/1/20                                   1,000,000       1,033,380
  @Hutchinson Multifamily Housing Revenue
      (Evergreen Apartments Project-Section 8)
      5.75% 11/1/28                                     910,000         849,412
   Minneapolis Multifamily Housing Revenue
      (Grant Street Apartments Project)
      Series A 7.25% 11/1/29                            750,000         767,865
      (Seward Towers Project)
      5.00% 5/20/36 (GNMA)                            4,000,000       4,163,200
      (Sumner Field) Series A
      5.50% 11/20/26) (GNMA) (AMT)                    1,000,000       1,046,490
      (Trinity Apartments-Section 8) Series A
      6.75% 5/1/21                                    1,810,000       1,869,459
  @Park Rapids Multifamily Revenue
      (The Court Apartments Project-Section 8)
      6.30% 2/1/20                                    2,870,000       2,670,018
   St. Cloud Housing & Redevelopment
      Authority Revenue (Sterling Heights
      Apartments Project) 7.55% 4/1/39 (AMT)          1,000,000       1,046,310
   Stillwater Multifamily Housing Revenue
      (Stillwater Cottages Project)
      Series A 7.00% 11/1/27                          1,000,000       1,027,260
      7.25% 11/1/27 (AMT)                             1,540,000       1,583,459
   Wadena Housing & Redevelopment
      Authority Multifamily Housing Revenue
      (Humphrey Manor East Project)
      6.00% 2/1/19                                    1,860,000       1,832,825
   Washington County Housing &
      Redevelopment Authority Governmental
      Revenue (Briar Pond) Series C
      7.25% 8/20/34                                     960,000         894,173
   Willmar Housing & Redevelopment
      Authority Multifamily Housing Revenue
      (Highland Apartments-Section 8)
      5.85% 6/1/19                                      960,000         960,000
                                                                  -------------
                                                                     30,130,530
                                                                  -------------
Municipal Lease Revenue Bonds - 2.56%
   Puerto Rico Public Buildings Authority
      Revenue (Government Facilities)
      Series D 5.25% 7/1/36                           1,070,000       1,124,014
   St. Paul Port Authority Lease Revenue
      (Cedar Street Office Building Project)
      5.00% 12/1/22                                   2,500,000       2,659,100
      5.125% 12/1/27                                  1,000,000       1,059,890
      (Robert Street Office Building Project)
      4.75% 12/1/23                                   2,000,000       2,064,720
      5.00% 12/1/27                                   2,500,000       2,635,325
      Series 9 5.25% 12/1/27                            725,000         776,163
                                                                  -------------
                                                                     10,319,212
                                                                  -------------

                                        6



- --------------------------------------------------------------------------------
                                                Delaware Tax-Free Minnesota Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Political Subdivision General Obligation
   Bonds - 3.81%
   Dakota County Capital Improvement
      Series A 4.75% 2/1/26                         $ 1,000,000   $   1,025,780
   Hennepin County Regional Railroad
      Authority 5.00% 12/1/31                         4,030,000       4,203,169
   Metropolitan Council Waste Water
      Treatment Series B 5.00% 12/1/21                1,200,000       1,291,068
   Minneapolis Library 5.00% 12/1/25                  1,500,000       1,589,070
   Ramsey County State Aid Series C
      5.00% 2/1/28                                    1,060,000       1,116,646
   St. Peter's Hospital Series A
      5.00% 9/1/24 (MBIA)                             1,905,000       2,002,117
   Todd Morrison Cass & Wadena Counties
      United Hospital District
      (Health Care Facilities-Lakewood)
      5.00% 12/1/21                                   2,000,000       2,081,140
      5.00% 12/1/34                                   1,000,000       1,021,260
      5.125% 12/1/24                                  1,000,000       1,043,660
                                                                  -------------
                                                                     15,373,910
                                                                  -------------

- -/-Pre-Refunded Bonds - 9.24%
   Chaska Electric Revenue Series A
      6.00% 10/1/25-10                                1,000,000       1,104,040
   Little Canada Multifamily Housing Revenue
      Alternative Development (Montreal
      Courts Apartments Project) Series A
      6.10% 12/1/17-07                                1,270,000       1,308,760
      6.25% 12/1/27-07                                2,900,000       3,023,453
   Minneapolis Health Care System Revenue
      (Fairview Health Services) Series A
      5.625% 5/15/32-12                              11,525,000      12,851,183
   Minneapolis Tax Increment Revenue
      Series E 5.00% 3/1/13-09                        6,265,000       6,543,479
   Minnesota Agricultural & Economic
      Development Broad Revenue
      (Fairview Health Care System)
      Series A 6.375% 11/15/29-10                       485,000         545,591
   Minnesota Higher Education Facilities Series 4-1
      6.00% 10/1/12-06                                  980,000         994,739
      6.00% 10/1/16-06                                1,400,000       1,421,056
   Minnesota Public Facilities Authority Water
      Pollution Control Revenue
      Series A 5.00% 3/1/20-10                        3,000,000       3,166,710
      Series B 4.75% 3/1/19-09                        2,000,000       2,073,580
   Puerto Rico Public Buildings Authority
      Guaranteed Government Facilities
      Revenue Series D 5.25% 7/1/36-12                2,930,000       3,180,163
   Southern Minnesota Municipal Power
      Agency Supply System Revenue
      Series A 5.75% 1/1/18-16 (MBIA)                 1,000,000       1,068,730
                                                                  -------------
                                                                     37,281,484
                                                                  -------------

School District General Obligation Bonds - 10.20%
   Bloomington Independent School
      District #271 Series B 5.00% 2/1/17             5,300,000       5,540,143
   Cambridge Independent School
      District #911 Series A
      4.75% 2/1/30 (MBIA)                             1,035,000       1,064,166
   Farmington Independent School
      District #192 Capital Appreciation Series B
      5.00% 2/1/27 (FSA)                              6,705,000       7,113,401
     ^5.34% 2/1/21 (FSA)                              1,500,000         720,420
     ^5.422% 2/1/20 (FSA)                             1,650,000         836,798

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
School District General Obligation Bonds
   (continued)
  ^Lakeville Independent School
      District #194 Capital Appreciation
      Series B 5.450% 2/1/19 (FSA)                  $ 8,000,000   $   4,197,920
   Lakeville Independent School
      District #194 Series A
      4.75% 2/1/22 (FSA)                              5,500,000       5,731,990
  ^Mahtomedi Independent School
      District #832 Capital Appreciation
      Series B 5.898% 2/1/14 (MBIA)                   1,540,000       1,130,144
   Prior Lake Independent School
      District #719 Series B 5.00% 2/1/19 (FSA)       3,145,000       3,390,027
 **Rockford Independent School
      District #883, Inverse Floater ROLs
      Series II-R-30-A 7.936% 2/1/23 (FSA)            3,510,000       4,014,352
  ^Rosemont Independent School
      District #196 Capital Appreciation Series B
      5.931% 4/1/11 (FSA)                             2,600,000       2,161,588
      5.96% 4/1/12 (FSA)                              1,850,000       1,474,598
      6.008% 4/1/13 (FSA)                             1,915,000       1,461,854
  ^Sartell Independent School
      District #748 Capital Appreciation Series B
      5.976% 2/1/13 (MBIA)                              540,000         412,285
      6.099% 2/1/15 (MBIA)                            1,075,000         753,134
      6.15% 2/1/16 (MBIA)                             1,750,000       1,172,500
                                                                  -------------
                                                                     41,175,320
                                                                  -------------

Single Family Housing Revenue Bonds - 1.09%
   Minnesota State Housing Finance Agency
      Single Family Mortgage
      Series A 5.30% 7/1/19                             635,000         665,601
      Series B 5.35% 1/1/33 (AMT)                     2,970,000       3,046,091
      Series J 5.90% 7/1/28 (AMT)                       525,000         542,640
   St. Louis Park Residential Mortgage
      Revenue Series A
      7.25% 4/20/23 (GNMA)                              128,000         128,099
                                                                  -------------
                                                                      4,382,431
                                                                  -------------

State General Obligation Bonds - 4.10%
   Minnesota State
      5.00% 11/1/20 (FSA)                             8,175,000       8,644,245
      5.00% 8/1/21                                    2,400,000       2,559,648
   Minnesota State Refunding Various
      Purposes 5.00% 6/1/13                           5,175,000       5,346,189
                                                                  -------------
                                                                     16,550,082
                                                                  -------------

Tax Increment/Special Assessment Bonds - 0.50%
   Minneapolis Tax Increment Revenue
      (St. Anthony Falls Project) 5.75% 2/1/27        1,000,000       1,021,310
   St. Paul Housing & Redevelopment
      Authority Tax Increment
      (Upper Landing Project)
      Series A 6.80% 3/1/29                           1,000,000       1,015,440
                                                                  -------------
                                                                      2,036,750
                                                                  -------------

Territorial General Obligation Bonds - 1.58%
   Puerto Rico Commonwealth Public
      Improvement Series A
      5.00% 7/1/34                                    4,500,000       4,637,430
      5.50% 7/1/19 (MBIA)                             1,500,000       1,738,380
                                                                  -------------
                                                                      6,375,810
                                                                  -------------

                                        7



- --------------------------------------------------------------------------------
                                                Delaware Tax-Free Minnesota Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Water & Sewer Revenue Bonds - 1.36%
**Minnesota Public Facilities Authority
      Water Pollution Control Revenue,
      Inverse Floater ROLs
      Series II-R-31 7.176% 3/1/18                  $ 5,000,000   $   5,509,550
                                                                  -------------
                                                                      5,509,550
                                                                  -------------
Total Municipal Bonds (cost $363,130,666)                           381,699,763
                                                                  -------------

                                                      Number of
                                                       Shares
- --------------------------------------------------------------------------------
Short-Term Investments - 4.81%
- --------------------------------------------------------------------------------
Money Market Instruments - 0.70%
   Federated Minnesota Municipal Cash Trust           2,823,937       2,823,937
                                                                  -------------
                                                                      2,823,937
                                                                  -------------

                                                     Principal
                                                      Amount
oVariable Rate Demand Notes - 4.11%
   Hennepin County
      Series A 3.05% 12/1/25 (SPA)                  $ 6,150,000       6,150,000
   Midwest Consortium of Municipal Utilities
      Revenue Series A (LOC - U.S. Bank N.A.)
      3.20% 1/1/25                                    2,000,000       2,000,000
   Minneapolis Convention Center
      Series A 3.05% 12/1/14 (SPA)                    1,570,000       1,570,000
      3.05% 12/1/18                                   1,200,000       1,200,000
   Minneapolis Guthrie Parking Ramp
      3.05% 12/1/33 (SPA)                             2,895,000       2,895,000
   Minneapolis Library 3.05% 12/1/32                  1,035,000       1,035,000
   Minneapolis Tax Increment Mill Quarter
      3.05% 3/1/32 (SPA)                              1,060,000       1,060,000
   Minnesota State Higher Education
      St. Catherine 3.15% 10/1/32                       700,000         700,000
                                                                  -------------
                                                                     16,610,000
                                                                  -------------

Total Short-Term Investments
   (cost $19,433,937)                                                19,433,937
                                                                  -------------
Total Market Value of Securities - 99.38%
   (cost $382,564,603)                                              401,133,700
Receivables and Other Assets
   Net of Liabilities - 0.62%                                         2,499,106
                                                                  -------------
Net Assets Applicable to 32,247,619
   Shares Outstanding - 100.00%                                   $ 403,632,806
                                                                  =============

Net Asset Value - Delaware Tax-Free Minnesota Fund Class A
   ($376,235,697 / 30,062,381 Shares)                             $       12.52
                                                                  -------------
Net Asset Value - Delaware Tax-Free Minnesota Fund Class B
   ($12,965,091 / 1,035,103 Shares)                               $       12.53
                                                                  -------------
Net Asset Value - Delaware Tax-Free Minnesota Fund Class C
   ($14,432,018 / 1,150,135 Shares)                               $       12.55
                                                                  -------------

Components of Net Assets at February 28, 2006:
Shares of beneficial interest
   (unlimited authorization - no par)                             $ 384,593,993
Undistributed net investment income                                     147,934
Accumulated net realized gain on investments                            321,782
Net unrealized appreciation of investments                           18,569,097
                                                                  -------------
Total net assets                                                  $ 403,632,806
                                                                  =============

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Summary of Abbreviations:
AMBAC - Insured by the AMBAC Assurance Corporation
AMT - Subject to Alternative Minimum Tax
FGIC - Insured by the Financial Guaranty Insurance Company
FSA - Insured by Financial Security Assurance
GNMA - Insured by Government National Mortgage Association
LOC - Letter of Credit
MBIA - Insured by the Municipal Bond Insurance Association
RADIAN - Insured by Radian Asset Assurance
ROLs - Residual Options Long
SPA - Stand-by Purchase Agreement

- -/-   Pre-Refunded Bonds. Municipals that are generally backed or secured by
      U.S. Treasury bonds. For Pre-Refunded Bonds, the stated maturity is
      followed by the year in which the bond is pre-refunded. See Note 7 in
      "Notes to Financial Statements."

**    An inverse floater bond is a type of bond with variable or floating
      interest rates that move in the opposite direction of short-term interest
      rates. Interest rate disclosed is in effect as of February 28, 2006. See
      Note 7 in "Notes to Financial Statements."

o     Variable rate security. The interest rate shown is the rate as of February
      28, 2006.

^     Zero coupon security. The interest rate shown is the yield at the time of
      purchase.

@     Illiquid security. At February 28, 2006, the aggregate amount of illiquid
      securities equals $3,519,430, which represented 0.87% of the Fund's net
      assets. See Note 7 in "Notes to Financial Statements."

Net Asset Value and Offering Price per Share -
   Delaware Tax-Free Minnesota Fund
Net asset value Class A (A)                                       $       12.52
Sales charge (4.50% of offering price) (B)                                 0.59
                                                                  -------------
Offering price                                                    $       13.11
                                                                  =============

(A)   Net asset value per share, as illustrated, is the amount which would be
      paid upon redemption or repurchase of shares.

(B)   See the current prospectus for purchases of $100,000 or more.

See accompanying notes

                                        8



- --------------------------------------------------------------------------------
                                        Delaware Tax-Free Minnesota Insured Fund
Statements                              February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds - 97.41%
- --------------------------------------------------------------------------------
Airport Revenue Bonds - 4.73%
   Minneapolis/St. Paul Metropolitan
      Airports Commission Revenue
      Series A 5.00% 1/1/22 (MBIA)                  $ 2,000,000   $   2,100,860
      Series A 5.125% 1/1/25 (FGIC)                     100,000         104,293
      Series C 5.125% 1/1/20 (FGIC)                   2,000,000       2,113,820
      Series C 5.25% 1/1/32 (FGIC)                    6,595,000       6,972,102
                                                                  -------------
                                                                     11,291,075
                                                                  -------------
Combined Utilities - 0.80%
   Shakopee Public Utilities Commission
      Revenue 5.125% 2/1/26 (MBIA)                    1,850,000       1,914,602
                                                                  -------------
                                                                      1,914,602
                                                                  -------------
Corporate-Backed Revenue Bonds - 0.77%
   Sartell Environmental Improvement
      Revenue (International Paper)
      Series A 5.20% 6/1/27                           1,800,000       1,843,002
                                                                  -------------
                                                                      1,843,002
                                                                  -------------
Dedicated Tax & Fees Revenue Bonds - 0.80%
   Virgin Islands Public Finance Authority
      (Matching Fund Loan) Series A
      5.25% 10/1/22                                   1,785,000       1,919,607
                                                                  -------------
                                                                      1,919,607
                                                                  -------------
Electric & Gas Revenue Bonds - 6.44%
   Minnesota State Municipal Power Agency
      Series A 5.00% 10/1/34                          2,000,000       2,065,200
 **Northern Municipal Power Agency Electric
      System Revenue, Inverse Floater ROLs
      Series II-R-32 7.176% 1/1/13 (FSA)              4,585,000       5,172,201
   Puerto Rico Electric Power
      Authority Power Revenue
      Series GG 4.75% 9/1/21 (FSA)                    1,000,000       1,036,980
      Series OO 5.00% 7/1/13 (CIFG)                   3,640,000       3,942,848
   Southern Minnesota Municipal Power
      Agency Supply System Revenue
      Series A 5.25% 1/1/15 (AMBAC)                   1,500,000       1,660,185
   Western Minnesota Municipal Power
      Agency Series B 5.00% 1/1/15 (MBIA)             1,365,000       1,485,366
                                                                  -------------
                                                                     15,362,780
                                                                  -------------
Escrowed to Maturity Bonds - 17.43%
   Dakota/Washington Counties Housing &
      Redevelopment Authority Anoka
      Single Family Residential Mortgage
      Revenue 8.45% 9/1/19 (GNMA) (AMT)               9,000,000      12,985,200
   Dakota/Washington Counties Housing &
      Redevelopment Authority Bloomington
      Mortgage Single Family Residential
      Mortgage Revenue
      8.15% 9/1/16 (GNMA) (MBIA) (AMT)                  405,000         546,839
      8.375% 9/1/21 (GNMA) (FHA) (AMT)               14,115,000      20,769,093
   Southern Minnesota Municipal Power
      Agency Supply Revenue Series A
      5.75% 1/1/18                                    3,790,000       4,050,487
      5.75% 1/1/18 (AMBAC)                              670,000         716,049
   Western Minnesota Municipal Power
      Agency Supply Revenue Series A
      6.60% 1/1/10                                    1,650,000       1,766,127
      9.75% 1/1/16 (MBIA)                               530,000         772,507
                                                                  -------------
                                                                     41,606,302
                                                                  -------------

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Higher Education Revenue Bonds - 5.90%
   Minnesota State Colleges & Universities
      Revenue Fund
      Series A 5.00% 10/1/22 (FSA)                  $ 5,135,000   $   5,455,783
      Series A 5.00% 10/1/29 (MBIA)                   4,000,000       4,251,960
   Minnesota State Higher Education
      Facilities Authority Revenue
      (St. Catherine College) Series 5-N1
      5.00% 10/1/18                                   2,200,000       2,284,304
   St. Cloud Housing & Redevelopment
      Authority Revenue (State University
      Foundation Project) 5.00% 5/1/23                2,000,000       2,096,660
                                                                  -------------
                                                                     14,088,707
                                                                  -------------
Hospital Revenue Bonds - 16.58%
   Duluth Economic Development Authority
      Health Care Facilities Benedictine
      Health System (St. Mary's Hospital)
      5.25% 2/15/28                                   8,500,000       8,810,250
   Minneapolis Health Care System Revenue
      (Allina Health Systems)
      Series A 5.75% 11/15/32                         7,800,000       8,380,008
      (Fairview Health Services)
      Series D 5.00% 11/15/34 (AMBAC)                 8,250,000       8,664,645
   Minneapolis/St. Paul Housing &
      Redevelopment Authority
      Health Care Systems
      (Allina Health Systems)
      5.00% 11/15/13 (AMBAC)                          6,490,000       6,497,658
      (Healthpartners Obligation Group Project)
      5.625% 12/1/22                                    650,000         698,932
      5.875% 12/1/29                                  1,000,000       1,078,600
   Minnesota Agricultural & Economic
      Development Board Revenue
      (Fairview Health Care System)
      Series A 5.75% 11/15/26 (MBIA)                    180,000         189,504
   St. Louis Park Health Care Facilities
      Revenue (Park Nicollet Health Services)
      Series B 5.50% 7/1/25                           2,000,000       2,135,540
   St. Paul Housing & Redevelopment
      Authority Hospital Revenue
      (St. Paul/Ramsey Medical Center Project)
      5.50% 5/15/13 (AMBAC)                           1,000,000       1,001,620
   Willmar (Rice Memorial Hospital Project)
      5.00% 2/1/22 (FSA)                              1,000,000       1,060,250
      5.00% 2/1/25 (FSA)                              1,000,000       1,055,290
                                                                  -------------
                                                                     39,572,297
                                                                  -------------
Multifamily Housing Revenue Bonds - 5.63%
   Eagan Multifamily Revenue
      (Woodridge Apartments) Series A
      5.90% 8/1/20 (GNMA)                             1,000,000       1,033,180
   Hopkins Multifamily Revenue
      (Auburn Apartments Project)
      Series A 8.05% 6/20/31 (GNMA)                   3,790,000       3,931,708
   Minneapolis Multifamily Housing Revenue
      (Bottineau Commons Project)
      5.45% 4/20/43 (GNMA) (AMT)                      1,500,000       1,571,325
      (Seward Towers Project)
      5.00% 5/20/36 (GNMA)                            4,000,000       4,163,200

                                        9



- --------------------------------------------------------------------------------
                                        Delaware Tax-Free Minnesota Insured Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Multifamily Housing Revenue Bonds (continued)
   Minnesota State Housing Finance Agency
      Rental Housing Revenue Series C-2
      5.95% 2/1/15 (AMBAC)                          $ 1,642,000   $   1,660,505
   White Bear Lake Multifamily Revenue
      (Lake Square) Series A
      5.875% 2/1/15 (FHA)                             1,055,000       1,088,222
                                                                  -------------
                                                                     13,448,140
                                                                  -------------
Municipal Lease Revenue Bonds - 5.26%
   Hopkins Housing & Redevelopment
      Authority Public Works and Fire Station
      Series A 5.00% 2/1/23 (MBIA)                    1,210,000       1,277,651
   Minneapolis Special School
      District #001 Series A
      5.00% 2/1/18 (FSA)                              1,545,000       1,638,704
      5.00% 2/1/19 (FSA)                              1,535,000       1,628,098
      5.00% 2/1/20 (FSA)                              1,690,000       1,788,831
   St. Paul Port Authority Lease Revenue
      (Cedar Street Office Building Project)
      5.125% 12/1/27                                  2,000,000       2,119,780
      5.25% 12/1/27                                   3,840,000       4,096,973
                                                                  -------------
                                                                     12,550,037
                                                                  -------------
Political Subdivision General Obligation
   Bonds - 0.56%
   Dakota County Community Development
      Agency Governmental Housing
      Development 5.00% 1/1/21                        1,275,000       1,336,366
                                                                  -------------
                                                                      1,336,366
                                                                  -------------
- -/-Pre-Refunded Bonds - 7.90%
   Minneapolis Community Development
      Agency Supported Development
      Revenue Series G-3 5.45% 12/1/31-11             2,000,000       2,185,100
   Minneapolis Health Care System Revenue
      (Fairview Health Services) Series A
      5.625% 5/15/32-12                               5,400,000       6,021,378
   Minnesota Agricultural & Economic
      Development Board Revenue
      (Fairview Health Care System)
      Series A 5.75% 11/15/26-07 (MBIA)              10,070,000      10,653,758
                                                                  -------------
                                                                     18,860,236
                                                                  -------------
School District General Obligation Bonds - 22.03%
   Big Lake Independent School
      District #727 Series A
      5.00% 2/1/17 (FSA)                              1,040,000       1,088,672
      5.00% 2/1/20 (FSA)                              1,000,000       1,046,800
   Centennial Independent School
      District #012 Series A
      5.00% 2/1/18 (FSA)                              1,270,000       1,347,026
   Farmington Independent School
      District #192 Series B
      5.00% 2/1/27 (FSA)                              4,000,000       4,243,640
   Lakeville Independent School District #194
      Series A 4.75% 2/1/22 (FSA)                     2,350,000       2,449,123
   Morris Independent School District #769
      5.00% 2/1/24 (MBIA)                             4,875,000       5,234,873
   Mounds View Independent School
      District #621
      5.00% 2/1/20 (MBIA)                             2,970,000       3,143,686
      5.375% 2/1/24 (FGIC)                            6,170,000       6,622,013

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
School District General Obligation Bonds
   (continued)
   Osseo Independent School District #279
      Series A 5.00% 2/1/21 (FSA)                   $ 3,570,000   $   3,775,489
   Robbinsdale Independent School
      District #281 5.00% 2/1/21 (FSA)                1,310,000       1,385,404
 **Rockford Independent School District #883,
      Inverse Floater ROLs Series II-R-30-B
      7.886% 2/1/21 (FSA)                             1,605,000       1,831,995
  ^Rosemount Independent School
      District #196 Series B
      5.80% 4/1/09 (FSA)                              1,860,000       1,669,796
      5.85% 4/1/10 (FSA)                              2,240,000       1,934,957
  ^Sauk Rapids Independent School
      District #047 Series B
      5.982% 2/1/15 (FSA)                             2,700,000       1,750,437
      6.083% 2/1/17 (FSA)                             2,245,000       1,280,930
 **South Washington County Independent
      School District #833,
      Inverse Floater ROLs Series II-R-34-A
      7.886% 2/1/20 (MBIA)                            3,440,000       3,944,992
      7.886% 2/1/21 (MBIA)                            3,645,000       4,180,086
   St. Michael Independent School District #885
      5.00% 2/1/20 (FSA)                              1,970,000       2,085,206
      5.00% 2/1/27 (FSA)                              3,435,000       3,589,609
                                                                  -------------
                                                                     52,604,734
                                                                  -------------
Single Family Housing Revenue Bonds - 0.14%
   Dakota County Housing & Redevelopment
      Authority Single Family Mortgage
      Revenue Series B 5.85% 10/1/30
      (GNMA) (FNMA) (AMT)                               328,000         336,731
                                                                  -------------
                                                                        336,731
                                                                  -------------
State General Obligation Bonds - 2.44%
   Minnesota State 5.00% 11/1/20 (FSA)                5,500,000       5,815,700
                                                                  -------------
                                                                      5,815,700
                                                                  -------------

Total Municipal Bonds (cost $216,165,822)                           232,550,316
                                                                  -------------

                                                     Number of
                                                       Shares
- --------------------------------------------------------------------------------
Short-Term Investments - 1.57%
- --------------------------------------------------------------------------------
Money Market Instruments - 0.30%
   Federated Minnesota Municipal Cash Trust             701,005         701,005
                                                                  -------------
                                                                        701,005
                                                                  -------------

                                                     Principal
                                                      Amount
oVariable Rate Demand Notes - 1.27%
   Midwest Consortium of Municipal Utilities
      Revenue Series A (LOC - U.S. Bank N.A.)
      3.20% 1/1/25                                  $ 1,900,000       1,900,000
   Minneapolis Convention Center Series A
      3.05% 12/1/14 (SPA)                             1,140,000       1,140,000
                                                                  -------------
                                                                      3,040,000
                                                                  -------------
Total Short-Term Investments
   (cost $3,741,005)                                                  3,741,005
                                                                  -------------

                                       10



- --------------------------------------------------------------------------------
                                        Delaware Tax-Free Minnesota Insured Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Total Market Value of Securities - 98.98%
   (cost $219,906,827)                                            $ 236,291,321
Receivables and Other Assets
   Net of Liabilities - 1.02%                                         2,435,781
                                                                  -------------

Net Assets Applicable to 21,800,442
   Shares Outstanding - 100.00%                                   $ 238,727,102
                                                                  =============

Net Asset Value - Delaware Tax-Free
   Minnesota Insured Fund Class A
   ($214,789,192 / 19,615,153 Shares)                             $       10.95
                                                                  -------------
Net Asset Value - Delaware Tax-Free
   Minnesota Insured Fund Class B
   ($11,487,928 / 1,050,054 Shares)                               $       10.94
                                                                  -------------
Net Asset Value - Delaware Tax-Free
   Minnesota Insured Fund Class C
   ($12,449,982 / 1,135,235 Shares)                               $       10.97
                                                                  -------------

Components of Net Assets at February 28, 2006:
Shares of beneficial interest
   (unlimited authorization - no par)                             $ 222,056,876
Accumulated net realized gain on investments                            285,732
Net unrealized appreciation of investments                           16,384,494
                                                                  -------------
Total net assets                                                  $ 238,727,102
                                                                  =============

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Summary of Abbreviations:
AMBAC - Insured by the AMBAC Indemnity Corporation
AMT - Subject to Alternative Minimum Tax
CIFG - CDC IXIS Financial Guaranty
FGIC - Insured by the Financial Guaranty Insurance Company
FHA - Insured by the Federal Housing Authority
FNMA - Insured by Federal National Mortgage Association
FSA - Insured by Financial Security Assurance
GNMA - Insured by Government National Mortgage Association
LOC - Letter of Credit
MBIA - Insured by the Municipal Bond Insurance Association
ROLs - Residual Option Longs

- -/-   Pre-Refunded Bonds. Municipals that are generally backed or secured by
      U.S. Treasury bonds. For Pre-Refunded Bonds, the stated maturity is
      followed by the year in which the bond is pre-refunded. See Note 7 in
      "Notes to Financial Statements."

**    An inverse floater bond is a type of bond with variable or floating
      interest rates that move in the opposite direction of short-term interest
      rates. Interest rate disclosed is in effect as of February 28, 2006. See
      Note 7 in "Notes to Financial Statements."

o     Variable rate security. The interest rate shown is the rate as of February
      28, 2006.

^     Zero coupon security. The interest rate shown is the yield at the time of
      purchase.

Net Asset Value and Offering Price per Share -
   Delaware Tax-Free Minnesota Insured Fund
Net asset value Class A (A)                                       $       10.95
Sales charge (4.50% of offering price) (B)                                 0.52
                                                                  -------------
Offering price                                                    $       11.47
                                                                  =============

(A)   Net asset value per share, as illustrated, is the amount which would be
      paid upon redemption or repurchase of shares.

(B)   See the current prospectus for purchases of $100,000 or more.

See accompanying notes

                                       11



- --------------------------------------------------------------------------------
                                   Delaware Tax-Free Minnesota Intermediate Fund
Statements                         February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds - 97.89%
- --------------------------------------------------------------------------------
Airport Revenue Bonds - 1.44%
   Minneapolis/St. Paul Metropolitan
      Airports Commission Series 14
      5.50% 1/1/11 (AMT)                            $   750,000   $     812,588
                                                                  -------------
                                                                        812,588
                                                                  -------------
Continuing Care/Retirement Revenue Bonds - 5.16%
   Apple Valley Economic Development
      Authority Health Care Revenue
      (Evercare Senior Living Projects)
      Series A 6.00% 12/1/25                            500,000         500,690
   Moorhead Economic Development
      Authority Multifamily Revenue
      (Eventide Lutheran Home Project)
      Series B 6.00% 6/1/18                           1,000,000       1,000,710
   Oakdale Elderly Housing Revenue
      (PHM/Oakdale, Inc. Project)
      5.75% 3/1/18                                    1,400,000       1,408,134
                                                                  -------------
                                                                      2,909,534
                                                                  -------------

Electric & Gas Revenue Bonds - 7.05%
   Chaska Electric Revenue (Generating
      Facilities) Series A 5.25% 10/1/25              1,000,000       1,069,930
   Laurentian Energy Authority I Cogeneration
      Revenue Series A 5.00% 12/1/21                    750,000         759,833
   Southern Minnesota Municipal Power
      Agency Supply System Revenue Series A
      5.00% 1/1/12 (AMBAC)                            1,000,000       1,071,210
      5.00% 1/1/13 (MBIA)                             1,000,000       1,077,580
                                                                  -------------
                                                                      3,978,553
                                                                  -------------

Escrowed to Maturity Bonds - 2.06%
   University of Minnesota Series A
      5.75% 7/1/16                                    1,000,000       1,164,020
                                                                  -------------
                                                                      1,164,020
                                                                  -------------

General Corporate Bonds - 1.92%
   Minneapolis Community Development
      Agency Supported Revenue Common
      Bond Fund Series 4 6.20% 6/1/17 (AMT)           1,055,000       1,080,816
                                                                  -------------
                                                                      1,080,816
                                                                  -------------

Higher Education Revenue Bonds - 4.79%
   Minnesota State Higher Education
      Facilities Authority Revenue
      (College of Art & Design)
      Series 5-D 6.625% 5/1/20                        1,000,000       1,080,770
      (University of St. Thomas)
      Series 5-Y 5.25% 10/1/19                          530,000         572,946
   St. Cloud Housing & Redevelopment
      Authority Revenue (State University
      Foundation Project) 5.00% 5/1/23                1,000,000       1,048,330
                                                                  -------------
                                                                      2,702,046
                                                                  -------------

Hospital Revenue Bonds - 15.08%
   Bemidji Hospital Facilities First Meeting
      Revenue (North Country Health
      Services) 5.00% 9/1/24 (RADIAN)                   500,000         520,260
   Glencoe Health Care Facilities Revenue
      (Glencoe Regional Health Services
      Project) 5.00% 4/1/20                           1,250,000       1,286,288
   Maple Grove Minnesota Health Care
      Facilities Revenue (North Memorial
      Health Care) 5.00% 9/1/29                       1,000,000       1,035,590

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Hospital Revenue Bonds (continued)
   Minneapolis Health Care System Revenue
      (Allina Health Systems) Series A
      5.75% 11/15/32                                $ 1,500,000   $   1,611,539
   Minneapolis/St. Paul Housing &
      Redevelopment Authority Health
      Care System (Health Partners Obligation
      Group Project) 6.00% 12/1/17                    1,125,000       1,247,366
   St. Louis Park Health Care Facilities
      Revenue (Park Nicollet Health Services)
      Series B 5.50% 7/1/25                           1,500,000       1,601,654
   St. Paul Housing & Redevelopment
      Authority Hospital Revenue (Health
      East Project) Series B 5.85% 11/1/17            1,160,000       1,202,700
                                                                  -------------
                                                                      8,505,397
                                                                  -------------

Library/Museum Revenue Bonds - 4.19%
   Minneapolis Art Center Facilities Revenue
      (Walker Art Center Project)
      5.125% 7/1/21                                   2,250,000       2,361,488
                                                                  -------------
                                                                      2,361,488
                                                                  -------------
Multifamily Housing Revenue Bonds - 4.57%
   Minneapolis Multifamily Housing Revenue
      (Trinity Apartments-Section 8)
      Series A 6.75% 5/1/21                           1,885,000       1,946,923
  @Park Rapids Multifamily Revenue
      (The Court Apartments Project-Section 8)
      6.05% 8/1/12                                      655,000         627,922
                                                                  -------------
                                                                      2,574,845
                                                                  -------------

Municipal Lease Revenue Bonds - 4.00%
   Edina Housing & Redevelopment Authority
      Public Project Revenue (Appropriate
      Lease Obligation) 5.125% 2/1/19                 1,000,000       1,055,930
   Hibbing Economic Development Authority
      Revenue (Hibbing Lease Obligation)
      6.10% 2/1/08                                      285,000         288,662
   Virginia Housing & Redeveloping Authority
      Health Care Facility Lease Revenue
      5.25% 10/1/25                                     880,000         911,830
                                                                  -------------
                                                                      2,256,422
                                                                  -------------

Political Subdivision General Obligation
   Bonds - 8.63%
   Dakota County Capital Improvement
      Series A 4.75% 2/1/17                           1,000,000       1,040,680
   Dakota County Community Development
      Agency Governmental Housing
      Refunding (Senior Housing Facilities)
      Series A 5.00% 1/1/22                           1,150,000       1,225,613
   Hennepin County Series B 4.75% 12/1/14             1,000,000       1,042,930
   Ramsey County (Capital Improvement Plan)
      Series B 5.25% 2/1/11                           1,445,000       1,561,163
                                                                  -------------
                                                                      4,870,386
                                                                  -------------

- -/-Pre-Refunded Bonds - 4.43%
   Minneapolis Health Care System Revenue
      (Fairview Health Services) Series A
      5.625% 5/15/32-12                               1,750,000       1,951,373
   Puerto Rico Commonwealth Highway &
      Transportation Authority Revenue
      Series D 5.25% 7/1/38-12                          500,000         545,050
                                                                  -------------
                                                                      2,496,423
                                                                  -------------

                                       12



- --------------------------------------------------------------------------------
                                   Delaware Tax-Free Minnesota Intermediate Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
School District General Obligation Bonds - 23.20%
   Big Lake Independent School
      District #727 Series C
      5.00% 2/1/16 (FSA)                            $ 1,180,000   $   1,250,694
      5.00% 2/1/17 (FSA)                              1,000,000       1,054,100
   Centennial Independent School
      District #012 Series A
      5.00% 2/1/18 (FSA)                              1,000,000       1,060,650
      5.00% 2/1/20 (FSA)                                750,000         795,488
   Hopkins Independent School
      District #270 5.125% 2/1/17 (FGIC)              2,000,000       2,134,439
   Moorhead Independent School
      District #152 5.00% 4/1/10 (FGIC)               2,585,000       2,736,092
   Osseo Independent School District #279
      Series A 5.00% 2/1/21 (FSA)                     1,500,000       1,586,340
   South Washington County Independent
      School District #833 Series B
      5.00% 2/1/16 (FSA)                              1,560,000       1,660,308
   St. Paul Independent School
      District #625 Series B
      5.00% 2/1/20 (FSA)                                750,000         809,018
                                                                  -------------
                                                                     13,087,129
                                                                  -------------

Single Family Housing Revenue Bonds - 2.41%
   Minnesota State Housing Finance Agency
      Residential Housing Series I
      5.10% 7/1/20 (AMT)                                845,000         872,040
   Minnesota State Housing Finance Agency
      Single Family Mortgage Series J
      5.90% 7/1/28 (AMT)                                470,000         485,792
                                                                  -------------
                                                                      1,357,832
                                                                  -------------

State General Obligation Bonds - 7.03%
   Minnesota State 5.00% 8/1/21                       2,550,000       2,719,626
   Minnesota State Refunding & Variable
      Purpose 5.00% 11/1/16                           1,200,000       1,246,620
                                                                  -------------
                                                                      3,966,246
                                                                  -------------

Territorial General Obligation Bonds - 1.93%
  oPuerto Rico Public Finance Corporation
      Commonwealth Appropriation Series A
      (LOC - Puerto Rico Government Bank)
      5.75% 8/1/27                                    1,000,000       1,087,510
                                                                  -------------
                                                                      1,087,510
                                                                  -------------

Total Municipal Bonds (cost $53,153,954)                             55,211,235
                                                                  -------------

                                                     Number of
                                                       Shares
- --------------------------------------------------------------------------------
Short-Term Investments - 1.91%
- --------------------------------------------------------------------------------
Money Market Instruments - 1.91%
   Federated Minnesota Municipal Cash Trust           1,080,553       1,080,553
                                                                  -------------

Total Short-Term Investments (cost $1,080,553)                        1,080,553
                                                                  -------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Total Market Value of Securities - 99.80%
   (cost $54,234,507)                                             $  56,291,788
Receivables and Other Assets
   Net of Liabilities - 0.20%                                           111,609
                                                                  -------------

Net Assets Applicable to 5,181,055 Shares
   Outstanding - 100.00%                                          $  56,403,397
                                                                  =============

Net Asset Value - Delaware Tax-Free Minnesota
   Intermediate Fund Class A
   ($49,293,177 / 4,529,063 Shares)                               $       10.88
                                                                  -------------

Net Asset Value - Delaware Tax-Free Minnesota
   Intermediate Fund Class B
   ($2,206,611 / 202,239 Shares)                                  $       10.91
                                                                  -------------

Net Asset Value - Delaware Tax-Free Minnesota
   Intermediate Fund Class C
   ($4,903,609 / 449,753 Shares)                                  $       10.90
                                                                  -------------

Components of Net Assets at February 28, 2006:
Shares of beneficial interest
   (unlimited authorization - no par)                             $  55,733,282
Accumulated net realized loss on investments                         (1,387,166)
Net unrealized appreciation of investments                            2,057,281
                                                                  -------------
Total net assets                                                  $  56,403,397
                                                                  =============

- -/-   Pre-Refunded Bonds. Municipals that are generally backed or secured by
      U.S. Treasury bonds. For Pre-Refunded Bonds, the stated maturity is
      followed by the year in which the bond is pre-refunded. See Note 7 in
      "Notes to Financial Statements."

o     Variable rate security. The interest rate shown is the rate as of February
      28, 2006.

@     Illiquid security. At February 28, 2006, the aggregate amount of illiquid
      securities equals $627,922, which represented 1.11% of the Fund's net
      assets. See Note 7 in "Notes to Financial Statements."

Summary of Abbreviations:
AMBAC - Insured by the AMBAC Indemnity Corporation
AMT - Subject to Alternative Minimum Tax
FGIC -Insured by the Financial Guaranty Insurance Company
FSA - Insured by Financial Security Assurance
LOC - Letter of Credit
MBIA - Insured by the Municipal Bond Insurance Association
RADIAN - Insured by Radian Asset Assurance

Net Asset Value and Offering Price per Share -
   Delaware Tax-Free Minnesota Intermediate Fund
Net asset value Class A (A)                                       $       10.88
Sales charge (2.75% of offering price) (B)                                 0.31
                                                                  -------------
Offering price                                                    $       11.19
                                                                  =============

(A)   Net asset value per share, as illustrated, is the amount which would be
      paid upon redemption or repurchase of shares.

(B)   See the current prospectus for purchases of $100,000 or more.

See accompanying notes

                                       13



- --------------------------------------------------------------------------------
                               Delaware Minnesota High-Yield Municipal Bond Fund
Statements                     February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds - 95.63%
- --------------------------------------------------------------------------------
Airline Revenue Bonds - 0.67%
 ++Minneapolis/St. Paul Metropolitan Airports
      Commission Special Facilities Revenue
      (Northwest Airlines, Inc. Project)
      Series A 7.00% 4/1/25 (AMT)                   $ 1,000,000   $     678,150
                                                                  -------------
                                                                        678,150
                                                                  -------------
Airport Revenue Bonds - 2.07%
   Minneapolis/St. Paul Metropolitan Airports
      Commission Revenue Series A
      5.00% 1/1/28 (MBIA)                             2,000,000       2,083,920
                                                                  -------------
                                                                      2,083,920
                                                                  -------------
Continuing Care/Retirement Revenue Bonds - 17.34%
   Apple Valley Economic Development
      Authority Health Care Revenue
      (Augustanna Home St. Paul Project)
      Series A 5.80% 1/1/30                           1,000,000       1,002,880
      (Evercare Senior Living Project)
      Series A 6.125% 6/1/35                          1,000,000         995,170
   Buhl Nursing Home Revenue
      (Forest Health Services Project)
      Series A 6.75% 8/1/33                           1,000,000       1,042,680
   Detroit Lakes Housing & Health Facilities
      Revenue Refunding (Mankato Lutheran
      Homes) Series D 5.50% 8/1/21                      500,000         506,035
   Mahtomedi Senior Housing Revenue
      (St. Andrews Village Project)
      5.75% 12/1/40                                   1,000,000       1,005,010
   Minneapolis Health Care Facilities Revenue
      (Augustana Chapel View Homes)
      Series D 5.75% 6/1/29                           1,000,000       1,021,930
      (Jones-Harrison Residence Project)
      5.60% 10/1/30                                   1,500,000       1,501,124
   Minnesota Agriculture & Economic
      Development Board Revenue
      (Benedictine Health Systems)
      5.75% 2/1/29                                    1,000,000       1,012,110
   Moorhead Economic Development
      Authority Multifamily Revenue
      (Eventide Lutheran Home Project)
      Series B 6.00% 6/1/18                             870,000         870,618
   Northfield Health Care Facilities Revenue
      (Northfield Retirement Center Project)
      Series A 6.00% 5/1/28                           1,000,000       1,000,330
   Oakdale Elderly Housing Revenue
      (PHM/Oakdale, Inc. Project)
      6.00% 3/1/28                                    1,800,000       1,810,439
   Owatonna Senior Housing Revenue
      (Senior Living Project) Series A
      5.80% 10/1/29                                     400,000         400,732
      6.00% 4/1/41                                    1,250,000       1,261,688
   Rochester Multifamily Revenue
      (Wedum Shorewood Campus Project)
      6.60% 6/1/36                                      990,000       1,023,215
   Shoreview Elderly Housing Revenue
      (PHM/Shoreview Inc. Project)
      6.15% 12/1/33                                   1,250,000       1,285,700
   Twin Valley Congregate Housing Revenue
      (Living Options, Inc. Project)
      5.95% 11/1/28                                   1,825,000       1,688,307
                                                                  -------------
                                                                     17,427,968
                                                                  -------------

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Corporate-Backed Revenue Bonds - 3.50%
   Cloquet Pollution Control Revenue
      (Potlatch Corp. Project) 5.90% 10/1/26        $ 1,700,000   $   1,722,253
   Sartell Environmental Improvement
      Revenue (International Paper)
      Series A 5.20% 6/1/27                           1,750,000       1,791,808
                                                                  -------------
                                                                     13,514,061
                                                                  -------------
Dedicated Tax & Fees Revenue Bonds - 1.07%
   Virgin Islands Public Finance Authority
      Revenue (Matching Fund Loan)
      Series A 5.25% 10/1/24                          1,000,000       1,072,430
                                                                  -------------
                                                                      1,072,430
                                                                  -------------
Electric & Gas Revenue Bonds - 8.84%
   Chaska Electric Revenue (Generating
      Facilities) Series A 5.25% 10/1/25              1,000,000       1,069,930
   Laurentian Energy Authority I Cogeneration
      Revenue Series A 5.00% 12/1/21                  1,750,000       1,772,943
   Minnesota State Municipal Power Agency
      Electric Revenue
      5.00% 10/1/35                                   1,000,000       1,035,410
      Series A 5.00% 10/1/34                          2,750,000       2,839,650
   Puerto Rico Electric Power Authority Power
      Revenue Series II 5.25% 7/1/31                  1,000,000       1,057,920
   Southern Minnesota Municipal Power
      Agency Supply System Revenue
      Series A 5.25% 1/1/16 (AMBAC)                   1,000,000       1,112,430
                                                                  -------------
                                                                      8,888,283
                                                                  -------------
Higher Education Revenue Bonds - 4.68%
   Minnesota State Higher Education
      Facilities Authority Revenue
      (Augsburg College)
      Series 6-C 5.00% 5/1/23                           700,000         726,341
      (College of Art & Design)
      Series 5-D 6.75% 5/1/26                           500,000         541,990
      (St. Catherine College)
      Series 5-N1 5.375% 10/1/32                      2,000,000       2,104,020
      (University St. Thomas)
      Series 6-I 5.00% 4/1/23                         1,250,000       1,328,350
                                                                  -------------
                                                                      4,700,701
                                                                  -------------
Hospital Revenue Bonds - 21.38%
   Bermidji Health Care Facilities First Meeting
      Revenue (North Country Health Services)
      5.00% 9/1/31 (RADIAN)                           2,500,000       2,586,949
   Duluth Economic Development Authority
      Health Care Facilities Revenue
      Benedictine Health System
      (St. Mary's Hospital) 5.25% 2/15/33             2,250,000       2,324,588
   Glencoe Health Care Facilities Revenue
      (Glencoe Regional Health Services
      Project) 5.00% 4/1/31                           1,100,000       1,103,542
   Maple Grove Health Care Facilities
      Revenue (North Memorial Health Care)
      5.00% 9/1/35                                    3,590,000       3,689,837
   Minneapolis Health Care System Revenue
      (Allina Health Systems)
      Series A 5.75% 11/15/32                         2,000,000       2,148,720
      (Fairview Health Services)
      Series D 5.00% 11/15/34 (AMBAC)                 1,000,000       1,050,260

                                       14



- --------------------------------------------------------------------------------
                               Delaware Minnesota High-Yield Municipal Bond Fund
Statements
- --------------------------------------------------------------------------------
     OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Hospital Revenue Bonds (continued)
   Minneapolis/St. Paul Housing &
      Redevelopment Authority Health Care
      System (Health Partners Obligation
      Group Project) 6.00% 12/1/17                  $ 1,125,000   $   1,247,366
   Shakopee Health Care Facilities Revenue
      (St. Francis Regional Medical Center)
      5.25% 9/1/34                                    1,000,000       1,031,970
   St. Louis Park Health Care Facilities
      Revenue (Park Nicollet Health Services)
      Series B 5.25% 7/1/30                           1,000,000       1,039,280
   St. Paul Housing & Redevelopment
      Authority Hospital Revenue
      (Health East Project)
      6.00% 11/15/25                                  1,000,000       1,090,180
      Series A 5.70% 11/1/15                            800,000         828,664
      Series B 5.85% 11/1/17                            250,000         259,203
   Stillwater Health Care Revenue
      5.00% 6/1/25                                    2,000,000       2,064,960
      5.00% 6/1/35                                    1,000,000       1,020,580
                                                                  -------------
                                                                     21,486,099
                                                                  -------------
Multifamily Housing Revenue Bonds - 14.62%
   Chanhassen Multifamily Housing Revenue
      (Heritage Park Apartments
      Project-Section 8)
      6.20% 7/1/30 (FHA) (AMT)                          300,000         308,745
   Chaska Multifamily Housing Revenue
      (West Suburban Housing Partners
      Project) 5.875% 3/1/31 (AMT)                    1,000,000         911,230
  @Hutchinson Multifamily Housing Revenue
      (Evergreen Apartments Project-Section 8)
      5.75% 11/1/28                                   2,000,000       1,866,840
   Minneapolis Multifamily Housing Revenue
      (Grant Street Apartments Project)
      Series A 7.25% 11/1/29                          2,085,000       2,134,664
      (Olson Townhomes Project)
      6.00% 12/1/19 (AMT)                             1,555,000       1,555,342
      (Trinity Apartments-Section 8)
      Series A 6.75% 5/1/21                             690,000         712,667
   Minnesota State Housing Finance Agency
      Rental Housing
      Series A 4.875% 8/1/24 (AMT)                      585,000         595,185
      Series A-1 5.00% 8/1/40 (AMT)                   1,000,000       1,005,410
   St. Anthony Multifamily Housing Revenue
      (Chandler Place Project) Series A
      6.05% 11/20/16 (GNMA) (FHA)                       135,000         138,453
   St. Cloud Housing & Redevelopment
      Authority Revenue (Sterling Heights
      Apartments Project) 7.55% 4/1/39 (AMT)            530,000         554,544
   St. Paul Housing & Redevelopment
      Authority Multifamily Housing Revenue
      (Selby Grotto Housing Project)
      5.50% 9/20/44 (GNMA) (FHA) (AMT)                  750,000         770,873
   Stillwater Multifamily Revenue
      (Stillwater Cottages Project)
      Series A 6.75% 11/1/11                            205,000         210,765
      Series A 7.00% 11/1/27                            340,000         349,268
      7.00% 11/1/16 (AMT)                               680,000         699,040

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
Multifamily Housing Revenue Bonds (continued)
   Washington County Housing &
      Redevelopment Authority
      Governmental Revenue
      (Briar Pond Project)
      Series B 7.125% 8/20/34                       $   845,000   $     788,301
      (Woodland Park Apartments Project)
      4.70% 10/1/32                                   2,075,000       2,085,894
                                                                  -------------
                                                                     14,687,221
                                                                  -------------
Municipal Lease Revenue Bonds - 2.61%
   Andover Economic Development Authority
      Public Facilities Lease Revenue
      (Andover Community Center)
      5.20% 2/1/34                                    1,000,000       1,041,120
   Hibbing Economic Development Authority
      Revenue (Hibbing Lease Obligation
      Project) 6.40% 2/1/12                             530,000         530,710
   St. Paul Port Authority Lease Revenue
      (Robert Street Office Building Project)
      5.00% 12/1/27                                   1,000,000       1,054,130
                                                                  -------------
                                                                      2,625,960
                                                                  -------------
Political Subdivision General Obligation
   Bonds - 4.26%
   Metropolitan Council Waste Water
      Treatment Series B 5.00% 12/1/21                  500,000         537,945
   Moorhead Series B 5.00% 2/1/33 (MBIA)                750,000         789,293
   Perham Disposal System
      6.00% 5/1/22 (AMT)                              1,500,000       1,593,840
   Todd Morrison Cass & Wadena Counties
      United Hospital District
      (Health Care Facilities-Lakewood)
      5.00% 12/1/21                                     610,000         634,748
      5.125% 12/1/24                                    205,000         213,950
      5.25% 12/1/26                                     490,000         513,613
                                                                  -------------
                                                                      4,283,389
                                                                  -------------
- -/-Pre-Refunded Bonds - 7.00%
   Little Canada Multifamily Housing Revenue
      Alternative Development (Montreal
      Courts Apartments Project)
      Series A 6.25% 12/1/27-07                       1,250,000       1,303,213
   Minneapolis Community Development
      Agency Supported Development
      Revenue Series G-3 5.45% 12/1/31-11             1,000,000       1,092,550
   Minneapolis Health Care System Revenue
      (Fairview Health Services)
      Series A 5.625% 5/15/32-12                      2,000,000       2,230,139
   Perham Hospital District Senior
      Congregate Housing Facilities Revenue
      (Briarwood Project) 6.25% 2/1/22-07               620,000         644,403
   Puerto Rico Commonwealth Highway &
      Transportation Authority Transportation
      Revenue Series D 5.25% 7/1/38-12                1,500,000       1,635,150
   Rice County Certificates of Participation
      Series A 6.00% 12/1/21-06                         125,000         127,479
                                                                  -------------
                                                                      7,032,934
                                                                  -------------
School District General Obligation Bonds - 2.90%
   Farmington Independent School
      District #192 Series B
      5.00% 2/1/27 (FSA)                              1,000,000       1,060,910

                                       15



- --------------------------------------------------------------------------------
                               Delaware Minnesota High-Yield Municipal Bond Fund
Statements
- --------------------------------------------------------------------------------
   OF NET ASSETS (CONTINUED)

                                                     Principal        Market
                                                      Amount          Value
- --------------------------------------------------------------------------------
Municipal Bonds (continued)
- --------------------------------------------------------------------------------
School District General Obligation Bonds
   (continued)
   Lakeville Independent School
      District #194 Series A
      4.75% 2/1/22 (FSA)                            $ 1,000,000   $   1,042,180
   St. Paul Independent School District #625
      Series B 5.00% 2/1/20 (FSA)                       750,000         809,018
                                                                  -------------
                                                                      2,912,108
                                                                  -------------
Single Family Housing Revenue Bonds - 0.80%
   Minnesota State Housing Finance Agency
      Single Family Mortgage
      Series E 6.25% 1/1/23 (AMT)                        15,000          15,317
      Series J 5.90% 7/1/28 (AMT)                       730,000         754,528
      Series M 5.875% 1/1/17                             30,000          30,186
                                                                  -------------
                                                                        800,031
                                                                  -------------
State General Obligation Bonds - 1.07%
 **Minnesota State Inverse Floater ROLs
      6.821% 11/1/17                                  1,000,000       1,076,080
                                                                  -------------
                                                                      1,076,080
                                                                  -------------
Tax Increment/Special Assessment Bonds - 2.31%
   Minneapolis Tax Increment Revenue
      (Ivory Tower Project) 5.70% 2/1/29                785,000         795,896
   Minneapolis Tax Increment Revenue
      Refunding (St. Anthony Falls Project)
      5.65% 2/1/27                                      500,000         507,210
   St. Paul Housing & Redevelopment
      Authority Tax Increment (Upper Landing
      Project) Series A 6.80% 3/1/29                  1,000,000       1,015,440
                                                                  -------------
                                                                      2,318,546
                                                                  -------------
Territorial General Obligation Bonds - 0.51%
   Puerto Rico Commonwealth Public
      Improvement Series A 5.00% 7/1/34                 500,000         515,270
                                                                  -------------
                                                                        515,270
                                                                  -------------

Total Municipal Bonds (cost $93,760,379)                             96,103,151
                                                                  -------------

                                                      Number of
                                                       Shares
- --------------------------------------------------------------------------------
Short-Term Investments - 4.92%
- --------------------------------------------------------------------------------
Money Market Instruments - 1.14%
   Federated Minnesota Municipal Cash Trust           1,141,494       1,141,494
                                                                  -------------
                                                                      1,141,494
                                                                  -------------

                                                     Principal
                                                      Amount
oVariable Rate Demand Notes - 3.78%
   Eagan Revenue Anticipation Notes
      3.23% 5/30/12                                 $   800,000         800,000
   Hennepin County Series A
      3.05% 12/1/25 (SPA)                             1,000,000       1,000,000
   Minneapolis Convention Center
      Series A 3.05% 12/1/14 (SPA)                    1,000,000       1,000,000
   Minneapolis Guthrie Parking Ramp
      3.05% 12/1/33 (SPA)                             1,000,000       1,000,000
                                                                  -------------
                                                                      3,800,000
                                                                  -------------

Total Short-Term Investments (cost $4,941,494)                        4,941,494
                                                                  -------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Total Market Value of Securities - 100.55%
   (cost $98,701,873)                                             $ 101,044,645
Liabilities Net of Receivables and Other
   Assets - (0.55%)                                                    (548,792)
                                                                  -------------

Net Assets Applicable to 9,556,444
   Shares Outstanding - 100.00%                                   $ 100,495,853
                                                                  =============
Net Asset Value - Delaware Minnesota High-Yield
   Municipal Bond Fund Class A
   ($71,510,735 / 6,803,558 Shares)                               $       10.51
                                                                  -------------
Net Asset Value - Delaware Minnesota High-Yield
   Municipal Bond Fund Class B
   ($10,554,463 / 1,002,507 Shares)                               $       10.53
                                                                  -------------
Net Asset Value - Delaware Minnesota High-Yield
   Municipal Bond Fund Class C
   ($18,430,655 / 1,750,379 Shares)                               $       10.53
                                                                  -------------

Components of Net Assets at February 28, 2006:
Shares of beneficial interest
   (unlimited authorization - no par)                             $ 100,491,739
Undistributed net investment income                                         294
Accumulated net realized loss on investments                         (2,338,952)
Net unrealized appreciation of investments                            2,342,772
                                                                  -------------
   Total net assets                                               $ 100,495,853
                                                                  =============

- -/-   Pre-Refunded Bonds. Municipals that are generally backed or secured by
      U.S. Treasury bonds. For Pre-Refunded Bonds, the stated maturity is
      followed by the year in which the bond is pre-refunded. See Note 7 in
      "Notes to Financial Statements."

**    An inverse floater bond is a type of bond with variable or floating
      interest rates that move in the opposite direction of short-term interest
      rates. Interest rate disclosed is in effect as of February 28, 2006. See
      Note 7 in "Notes to Financial Statements."

o     Variable rate security. The interest rate shown is the rate as of February
      28, 2006.

++    Non-income producing security. Security is currently in default.

@     Illiquid security. At February 28, 2006, the aggregate amount of illiquid
      securities equals $1,866,840, which represented 1.86% of the Fund's net
      assets. See Note 7 in "Notes to Financial Statements."

Summary of Abbreviations:
AMBAC - Insured by the AMBAC Assurance Corporation
AMT - Subject to Alternative Minimum Tax
FHA - Insured by the Federal Housing Administration
FSA - Insured by Financial Security Assurance
GNMA - Insured by Government National Mortgage Association
MBIA - Insured by the Municipal Bond Insurance Association
RADIAN - Insured by Radian Asset Assurance
ROLs - Residual Option Longs
SPA - Stand-by Purchase Agreement

Net Asset Value and Offering Price per Share -
   Delaware Minnesota High-Yield Municipal Bond Fund
Net asset value Class A (A)                                       $       10.51
Sales charge (4.50% of offering price) (B)                                 0.50
                                                                  -------------
Offering price                                                    $       11.01
                                                                  =============

(A)   Net asset value per share, as illustrated, is the amount which would be
      paid upon redemption or repurchase of shares.

(B)   See the current prospectus for purchases of $100,000 or more.

                                       16



- --------------------------------------------------------------------------------
                                  Delaware Minnesota Municipal Bond Funds
Statements                        Six Months Ended February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   OF OPERATIONS



                                                            Delaware          Delaware            Delaware            Delaware
                                                            Tax-Free     Tax-Free Minnesota  Tax-Free Minnesota Minnesota High-Yield
                                                         Minnesota Fund     Insured Fund      Intermediate Fund  Municipal Bond Fund
                                                                                                    
Investment Income:
   Interest                                                $ 9,901,604      $ 5,865,041           $ 1,349,168       $ 2,380,977
                                                           -----------      -----------           -----------       -----------
Expenses:
   Management fees                                           1,079,278          598,997               146,048           255,488
   Distribution expenses -- Class A                            456,784          270,135                63,239            81,918
   Distribution expenses -- Class B                             62,643           58,156                12,630            52,080
   Distribution expenses -- Class C                             70,990           59,790                26,598            83,567
   Dividend disbursing and transfer agent fees and
   expenses                                                    102,042           68,812                19,493            29,566
   Accounting and administration expenses                       78,493           47,920                11,684            18,581
   Legal and professional fees                                  30,456           22,140                 9,313            11,324
   Registration fees                                            17,000           15,425                 7,970             6,750
   Trustees' fees                                               11,274            6,822                 1,654             2,675
   Reports and statements to shareholders                       10,876           12,265                 5,366             4,977
   Custodian fees                                                8,049            5,257                 1,541             2,917
   Insurance fees                                                5,482            2,451                   538             1,472
   Pricing fees                                                  2,007            1,058                   644             1,225
   Taxes (other than taxes on income)                              779              537                   230               179
   Other                                                         9,925            6,129                 2,142             1,367
                                                           -----------      -----------           -----------       -----------
                                                             1,946,078        1,175,894               309,090           554,086
   Less expenses absorbed or waived                             (7,560)         (20,556)              (30,872)          (39,484)
   Less waived distribution expenses -- Class A                     --               --               (25,296)               --
   Less expense paid indirectly                                 (1,685)            (231)                 (429)              (33)
                                                           -----------      -----------           -----------       -----------
   Total operating expenses                                  1,936,833        1,155,107               252,493           514,569
                                                           -----------      -----------           -----------       -----------
Net Investment Income                                        7,964,771        4,709,934             1,096,675         1,866,408
                                                           -----------      -----------           -----------       -----------

Net Realized and Unrealized Gain (Loss) on Investments:
   Net realized gain (loss) on investments                     424,079         (108,140)             (112,049)           34,629
   Net change in unrealized appreciation/depreciation of
   investments                                              (4,977,425)      (2,971,577)             (594,726)         (816,753)
                                                           -----------      -----------           -----------       -----------
Net Realized and Unrealized Loss on Investments             (4,553,346)      (3,079,717)             (706,775)         (782,124)
                                                           -----------      -----------           -----------       -----------

Net Increase in Net Assets Resulting from Operations       $ 3,411,425      $ 1,630,217           $   389,900       $ 1,084,284
                                                           ===========      ===========           ===========       ===========


See accompanying notes

                                       17



- --------------------------------------------------------------------------------
                                         Delaware Minnesota Municipal Bond Funds
Statements
- --------------------------------------------------------------------------------
   OF CHANGES IN NET ASSETS



                                                                    Delaware Tax-Free      Delaware Tax-Free Minnesota
                                                                      Minnesota Fund                Insured Fund

                                                                Six Months        Year      Six Months         Year
                                                                   Ended         Ended         Ended          Ended
                                                                  2/28/06       8/31/05       2/28/06        8/31/05
                                                                (Unaudited)                 (Unaudited)
                                                                                             
Increase (Decrease) in Net Assets from Operations:
   Net investment income                                       $  7,964,771  $ 15,842,204  $  4,709,934  $    10,006,289
   Net realized gain (loss) on investments                          424,079       521,727      (108,140)         483,566
   Net change in unrealized appreciation/depreciation of
      investments                                                (4,977,425)    6,325,529    (2,971,577)       2,576,840
                                                               ------------  ------------  ------------  ---------------
   Net increase in net assets resulting from operations           3,411,425    22,689,460     1,630,217       13,066,695
                                                               ------------  ------------  ------------  ---------------

Dividends and Distributions to Shareholders from:
   Net investment income:
      Class A                                                    (7,591,083)  (14,918,426)   (4,304,924)      (9,106,255)
      Class B                                                      (213,089)     (468,436)     (188,284)        (438,591)
      Class C                                                      (240,881)     (416,235)     (193,003)        (415,840)

   Net realized gain on investments:
      Class A                                                      (767,541)   (4,220,929)     (438,581)      (1,001,479)
      Class B                                                       (26,047)     (174,978)      (23,729)         (62,572)
      Class C                                                       (29,894)     (135,698)      (24,664)         (55,205)
                                                               ------------  ------------  ------------  ---------------
                                                                 (8,868,535)  (20,334,702)   (5,173,185)     (11,079,942)
                                                               ------------  ------------  ------------  ---------------
Capital Share Transactions:
   Proceeds from shares sold:
      Class A                                                    26,744,754    32,762,383     3,399,998       13,305,078
      Class B                                                       644,827     1,032,796       236,508          762,589
      Class C                                                     2,299,782     4,082,514     1,132,490        2,220,317

   Net asset value of shares issued upon reinvestment
      of dividends and distributions:
      Class A                                                     5,473,155    12,557,067     3,273,057        6,840,725
      Class B                                                       153,532       421,984       164,340          389,371
      Class C                                                       212,631       431,656       154,788          323,100
                                                               ------------  ------------  ------------  ---------------
                                                                 35,528,681    51,288,400     8,361,181       23,841,180
                                                               ------------  ------------  ------------  ---------------
   Cost of shares repurchased:
      Class A                                                   (15,385,525)  (31,030,615)  (15,357,614)     (22,291,529)
      Class B                                                      (467,921)   (3,294,771)   (1,075,329)      (3,218,588)
      Class C                                                    (1,857,497)   (1,444,705)     (934,703)      (2,404,134)
                                                               ------------  ------------  ------------  ---------------
                                                                (17,710,943)  (35,770,091)  (17,367,646)     (27,914,251)
                                                               ------------  ------------  ------------  ---------------
Increase (decrease) in net assets derived from capital
   share transactions                                            17,817,738    15,518,309    (9,006,465)      (4,073,071)
                                                               ------------  ------------  ------------  ---------------
Net Increase (Decrease) in Net Assets                            12,360,628    17,873,067   (12,549,433)      (2,086,318)

Net Assets:
   Beginning of period                                          391,272,178   373,399,111   251,276,535      253,362,853
                                                               ------------  ------------  ------------  ---------------
   End of period                                               $403,632,806  $391,272,178  $238,727,102  $   251,276,535
                                                               ============  ============  ============  ===============

   Undistributed net investment income                         $    147,934  $    147,934  $         --  $            --


See accompanying notes

                                       18



- --------------------------------------------------------------------------------
                                         Delaware Minnesota Municipal Bond Funds
Statements
- --------------------------------------------------------------------------------
   OF CHANGES IN NET ASSETS (CONTINUED)



                                                                       Delaware Tax-Free        Delaware Minnesota High-Yield
                                                                  Minnesota Intermediate Fund        Municipal Bond Fund

                                                                    Six Months        Year        Six Months        Year
                                                                      Ended          Ended          Ended          Ended
                                                                     2/28/06        8/31/05        2/28/06        8/31/05
                                                                   (Unaudited)                  (Unaudited)
                                                                                                  
Increase (Decrease) in Net Assets from Operations:
   Net investment income                                          $  1,096,675  $   2,350,094   $  1,866,408  $     3,196,642
   Net realized gain (loss) on investments                            (112,049)       799,234         34,629           26,471
   Net change in unrealized appreciation/depreciation of
      investments                                                     (594,726)      (107,313)      (816,753)       2,717,449
                                                                  ------------  -------------   ------------  ---------------
   Net increase in net assets resulting from operations                389,900      3,042,015      1,084,284        5,940,562
                                                                  ------------  -------------   ------------  ---------------

Dividends and Distributions to Shareholders from:
   Net investment income:
      Class A                                                         (978,723)    (2,063,392)    (1,386,136)      (2,292,733)
      Class B                                                          (37,941)       (85,793)      (180,751)        (419,856)
      Class C                                                          (80,029)      (200,891)      (290,212)        (482,033)
                                                                  ------------  -------------   ------------  ---------------
                                                                    (1,096,693)    (2,350,076)    (1,857,099)      (3,194,622)
                                                                  ------------  -------------   ------------  ---------------
Capital Share Transactions:
   Proceeds from shares sold:
      Class A                                                        2,049,924      8,856,040     12,589,768       22,657,439
      Class B                                                           10,970         46,423      1,110,843        1,226,522
      Class C                                                          566,681        735,412      3,715,184        5,727,603

   Net asset value of shares issued upon reinvestment of
      dividends and distributions:
      Class A                                                          727,318      1,526,786        850,359        1,387,489
      Class B                                                           28,689         62,528        116,998          256,713
      Class C                                                           60,182        157,534        201,188          291,405
                                                                  ------------  -------------   ------------  ---------------
                                                                     3,443,764     11,384,723     18,584,340       31,547,171
                                                                  ------------  -------------   ------------  ---------------
   Cost of shares repurchased:
      Class A                                                       (5,838,734)   (15,027,594)    (5,188,387)      (4,758,836)
      Class B                                                         (608,658)      (550,863)    (1,079,982)      (3,831,970)
      Class C                                                       (1,650,808)    (2,157,860)    (1,163,753)      (2,120,433)
                                                                  ------------  -------------   ------------  ---------------
                                                                    (8,098,200)   (17,736,317)    (7,432,122)     (10,711,239)
                                                                  ------------  -------------   ------------  ---------------
Increase (decrease) in net assets derived from capital
    share transactions                                              (4,654,436)    (6,351,594)    11,152,218       20,835,932
                                                                  ------------  -------------   ------------  ---------------
Net Increase (Decrease) in Net Assets                               (5,361,229)    (5,659,655)    10,379,403       23,581,872

Net Assets:
   Beginning of period                                              61,764,626     67,424,281     90,116,450       66,534,578
                                                                  ------------  -------------   ------------  ---------------
   End of period                                                  $ 56,403,397  $  61,764,626   $100,495,853   $   90,116,450
                                                                  ============  =============   ============  ===============

   Undistributed net investment income                            $         --  $          --   $        294  $            --


See accompanying notes

                                       19



Financial
   HIGHLIGHTS

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ---------------------------------------------------------------------------------------------------------------------------------
                                                                            Delaware Tax-Free Minnesota Fund Class A
- ---------------------------------------------------------------------------------------------------------------------------------
                                                             Six Months
                                                               Ended                            Year Ended
                                                             2/28/06(2)    8/31/05    8/31/04    8/31/03    8/31/02(1)   8/31/01
                                                            (Unaudited)
                                                                                                      
Net asset value, beginning of period                         $ 12.690     $ 12.620   $ 12.450   $ 12.610     $ 12.570   $ 12.120

Income (loss) from investment operations:
Net investment income                                           0.254        0.527      0.590      0.622        0.634      0.615
Net realized and unrealized gain (loss) on investments         (0.141)       0.222      0.348     (0.148)       0.037      0.450
                                                             --------     --------   --------   --------     --------   --------
Total from investment operations                                0.113        0.749      0.938      0.474        0.671      1.065
                                                             --------     --------   --------   --------     --------   --------

Less dividends and distributions from:
Net investment income                                          (0.257)      (0.526)    (0.600)    (0.625)      (0.631)    (0.615)
Net realized gain on investments                               (0.026)      (0.153)    (0.168)    (0.009)          --         --
                                                             --------     --------   --------   --------     --------   --------
Total dividends and distributions                              (0.283)      (0.679)    (0.768)    (0.634)      (0.631)    (0.615)
                                                             --------     --------   --------   --------     --------   --------

Net asset value, end of period                               $ 12.520     $ 12.690   $ 12.620   $ 12.450     $ 12.610   $ 12.570
                                                             ========     ========   ========   ========     ========   ========

Total return(3)                                                  0.92%        6.12%      7.72%      3.80%        5.54%      9.02%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                      $376,236     $364,491   $348,000   $340,029     $356,522   $363,033
Ratio of expenses to average net assets                          0.94%        0.93%      0.94%      0.97%        0.98%      1.00%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid indirectly      0.94%        0.94%      0.94%      0.97%        0.98%      1.00%
Ratio of net investment income to average net assets             4.11%        4.19%      4.68%      4.90%        5.11%      5.00%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid indirectly      4.11%        4.18%      4.68%      4.90%        5.11%      5.00%
Portfolio turnover                                                 18%          10%        25%        27%          13%        10%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.003, a decrease in net
      realized and unrealized gain (loss) per share of $0.003, and an increase
      in the ratio of net investment income to average net assets of 0.03%. Per
      share data and ratios for periods prior to September 1, 2001 have not been
      restated to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager, as applicable. Performance would have been lower had
      the expense limitation not been in effect.

See accompanying notes

                                       20



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ---------------------------------------------------------------------------------------------------------------------------------
                                                                            Delaware Tax-Free Minnesota Fund Class B
- ---------------------------------------------------------------------------------------------------------------------------------
                                                             Six Months
                                                               Ended                             Year Ended
                                                             2/28/06(2)    8/31/05     8/31/04    8/31/03   8/31/02(1)   8/31/01
                                                            (Unaudited)
                                                                                                      
Net asset value, beginning of period                         $ 12.700     $ 12.630    $ 12.460   $ 12.620    $ 12.580   $ 12.120

Income (loss) from investment operations:
Net investment income                                           0.208        0.433       0.496      0.529       0.540      0.523
Net realized and unrealized gain (loss) on investments         (0.141)       0.222       0.348     (0.150)      0.037      0.460
                                                             --------     --------    --------   --------    --------   --------
Total from investment operations                                0.067        0.655       0.844      0.379       0.577      0.983
                                                             --------     --------    --------   --------    --------   --------

Less dividends and distributions from:
Net investment income                                          (0.211)      (0.432)     (0.506)    (0.530)     (0.537)    (0.523)
Net realized gain on investments                               (0.026)      (0.153)     (0.168)    (0.009)         --         --
                                                             --------     --------    --------   --------    --------   --------
Total dividends and distributions                              (0.237)      (0.585)     (0.674)    (0.539)     (0.537)    (0.523)
                                                             --------     --------    --------   --------    --------   --------

Net asset value, end of period                               $ 12.530     $ 12.700    $ 12.630   $ 12.460    $ 12.620   $ 12.580
                                                             ========     ========    ========   ========    ========   ========

Total return(3)                                                  0.54%        5.33%       6.91%      3.02%       4.75%      8.29%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                      $ 12,965     $ 12,810    $ 14,588   $ 16,394    $ 17,043   $ 15,927
Ratio of expenses to average net assets                          1.69%        1.68%       1.69%      1.72%       1.73%      1.75%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid indirectly      1.69%        1.69%       1.69%      1.72%       1.73%      1.75%
Ratio of net investment income to average net assets             3.36%        3.44%       3.93%      4.15%       4.36%      4.25%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid indirectly      3.36%        3.43%       3.93%      4.15%       4.36%      4.25%
Portfolio turnover                                                 18%          10%         25%        27%         13%        10%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.003, a decrease in net
      realized and unrealized gain (loss) per share of $0.003, and an increase
      in the ratio of net investment income to average net assets of 0.03%. Per
      share data and ratios for periods prior to September 1, 2001 have not been
      restated to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager, as applicable. Performance would have been lower had
      the expense limitation not been in effect.

See accompanying notes

                                       21



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ---------------------------------------------------------------------------------------------------------------------------------
                                                                            Delaware Tax-Free Minnesota Fund Class C
- ---------------------------------------------------------------------------------------------------------------------------------
                                                             Six Months
                                                               Ended                             Year Ended
                                                             2/28/06(2)    8/31/05     8/31/04    8/31/03   8/31/02(1)   8/31/01
                                                            (Unaudited)
                                                                                                      
Net asset value, beginning of period                         $ 12.720     $ 12.650    $ 12.480   $ 12.640    $ 12.590   $ 12.140

Income (loss) from investment operations:
Net investment income                                           0.208        0.433       0.495      0.529       0.540      0.523
Net realized and unrealized gain (loss) on investments         (0.141)       0.222       0.348     (0.151)      0.047      0.450
                                                             --------     --------    --------   --------    --------   --------
Total from investment operations                                0.067        0.655       0.843      0.378       0.587      0.973
                                                             --------     --------    --------   --------    --------   --------

Less dividends and distributions from:
Net investment income                                          (0.211)      (0.432)     (0.505)    (0.529)     (0.537)    (0.523)
Net realized gain on investments                               (0.026)      (0.153)     (0.168)    (0.009)         --         --
                                                             --------     --------    --------   --------    --------   --------
Total dividends and distributions                              (0.237)      (0.585)     (0.673)    (0.538)     (0.537)    (0.523)
                                                             --------     --------    --------   --------    --------   --------

Net asset value, end of period                               $ 12.550     $ 12.720    $ 12.650   $ 12.480    $ 12.640   $ 12.590
                                                             ========     ========    ========   ========    ========   ========

Total return(3)                                                  0.54%        5.32%       6.90%      3.01%       4.82%      8.20%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                      $ 14,432     $ 13,971    $ 10,811   $ 10,161    $  7,682   $  6,042
Ratio of expenses to average net assets                          1.69%        1.68%       1.69%      1.72%       1.73%      1.75%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid indirectly      1.69%        1.69%       1.69%      1.72%       1.73%      1.75%
Ratio of net investment income to average net assets             3.36%        3.44%       3.93%      4.15%       4.36%      4.25%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid indirectly      3.36%        3.43%       3.93%      4.15%       4.36%      4.25%
Portfolio turnover                                                 18%          10%         25%        27%         13%        10%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.003, a decrease in net
      realized and unrealized gain (loss) per share of $0.003, and an increase
      in the ratio of net investment income to average net assets of 0.03%. Per
      share data and ratios for periods prior to September 1, 2001 have not been
      restated to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager, as applicable. Performance would have been lower had
      the expense limitation not been in effect.

See accompanying notes

                                       22



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ----------------------------------------------------------------------------------------------------------------------------------
                                                                       Delaware Tax-Free Minnesota Insured Fund Class A
- ----------------------------------------------------------------------------------------------------------------------------------
                                                              Six Months
                                                                Ended                           Year Ended
                                                              2/28/06(2)   8/31/05     8/31/04    8/31/03     8/31/02(1)  8/31/01
                                                             (Unaudited)
                                                                                                      
Net asset value, beginning of period                         $    11.110  $  11.020  $  10.740  $   10.940  $   10.900  $  10.480

Income (loss) from investment operations:
Net investment income                                              0.217      0.446      0.479       0.498       0.514      0.514
Net realized and unrealized gain (loss) on investments            (0.139)     0.138      0.282      (0.197)      0.038      0.421
                                                             -----------  ---------  ---------  ----------  ----------  ---------
Total from investment operations                                   0.078      0.584      0.761       0.301       0.552      0.935
                                                             -----------  ---------  ---------  ----------  ----------  ---------

Less dividends and distributions from:
Net investment income                                             (0.216)    (0.445)    (0.481)     (0.501)     (0.512)    (0.515)
Net realized gain on investments                                  (0.022)    (0.049)        --          --          --         --
                                                             -----------  ---------  ---------  ----------  ----------  ---------
Total dividends and distributions                                 (0.238)    (0.494)    (0.481)     (0.501)     (0.512)    (0.515)
                                                             -----------  ---------  ---------  ----------  ----------  ---------

Net asset value, end of period                               $    10.950  $  11.110  $  11.020  $   10.740  $   10.940  $  10.900
                                                             ===========  =========  =========  ==========  ==========  =========

Total return(3)                                                     0.73%      5.42%      7.20%       2.75%       5.25%      9.14%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                      $   214,789  $ 226,671  $ 227,018  $  231,738  $  239,763  $ 242,716
Ratio of expenses to average net assets                             0.89%      0.89%      0.89%       0.93%       0.96%      0.90%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid indirectly         0.91%      0.90%      0.89%       0.93%       0.96%      0.90%
Ratio of net investment income to average net assets                4.01%      4.05%      4.37%       4.52%       4.78%      4.82%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid indirectly         3.99%      4.04%      4.37%       4.52%       4.78%      4.82%
Portfolio turnover                                                     9%        10%        15%         30%         15%         7%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.002, a decrease in net
      realized and unrealized gain (loss) per share of $0.002, and an increase
      in the ratio of net investment income to average net assets of 0.02%. Per
      share data and ratios for periods prior to September 1, 2001 have not been
      restated to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager, as applicable. Performance would have been lower had
      the expense limitation not been in effect.

See accompanying notes

                                       23



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ----------------------------------------------------------------------------------------------------------------------------------
                                                                       Delaware Tax-Free Minnesota Insured Fund Class B
- ----------------------------------------------------------------------------------------------------------------------------------
                                                             Six Months
                                                                Ended                           Year Ended
                                                             2/28/06(2)    8/31/05    8/31/04     8/31/03    8/31/02(1)   8/31/01
                                                             (Unaudited)
                                                                                                      
Net asset value, beginning of period                         $    11.100  $  11.010  $  10.730  $   10.940  $   10.890  $  10.470

Income (loss) from investment operations:
Net investment income                                              0.177      0.364      0.397       0.415       0.433      0.434
Net realized and unrealized gain (loss) on investments            (0.139)     0.137      0.282      (0.207)      0.048      0.422
                                                             -----------  ---------  ---------  ----------  ----------  ---------
Total from investment operations                                   0.038      0.501      0.679       0.208       0.481      0.856
                                                             -----------  ---------  ---------  ----------  ----------  ---------

Less dividends and distributions from:
Net investment income                                             (0.176)    (0.362)    (0.399)     (0.418)     (0.431)    (0.436)
Net realized gain on investments                                  (0.022)    (0.049)        --          --          --         --
                                                             -----------  ---------  ---------  ----------  ----------  ---------
Total dividends and distributions                                 (0.198)    (0.411)    (0.399)     (0.418)     (0.431)    (0.436)
                                                             -----------  ---------  ---------  ----------  ----------  ---------

Net asset value, end of period                               $    10.940  $  11.100  $  11.010  $   10.730  $   10.940  $  10.890
                                                             ===========  =========  =========  ==========  ==========  =========

Total return(3)                                                     0.36%      4.64%      6.41%       1.89%       4.56%      8.34%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                      $    11,488  $  12,337  $  14,317  $   15,647  $   14,341  $  12,732
Ratio of expenses to average net assets                             1.64%      1.64%      1.64%       1.68%       1.71%      1.65%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid indirectly         1.66%      1.65%      1.64%       1.68%       1.71%      1.65%
Ratio of net investment income to average net assets                3.26%      3.30%      3.62%       3.77%       4.03%      4.07%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid indirectly         3.24%      3.29%      3.62%       3.77%       4.03%      4.07%
Portfolio turnover                                                     9%        10%        15%         30%         15%         7%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.002, a decrease in net
      realized and unrealized gain (loss) per share of $0.002, and an increase
      in the ratio of net investment income to average net assets of 0.02%. Per
      share data and ratios for periods prior to September 1, 2001 have not been
      restated to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager, as applicable. Performance would have been lower had
      the expense limitation not been in effect.

See accompanying notes

                                       24



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ----------------------------------------------------------------------------------------------------------------------------------
                                                                    Delaware Tax-Free Minnesota Insured Fund Class C
- ----------------------------------------------------------------------------------------------------------------------------------
                                                            Six Months
                                                              Ended                            Year Ended
                                                            2/28/06(2)    8/31/05    8/31/04     8/31/03    8/31/02(1)    8/31/01
                                                           (Unaudited)
                                                                                                       
Net asset value, beginning of period                         $ 11.120    $ 11.030   $ 10.750   $  10.950    $   10.910   $ 10.480

Income (loss) from investment operations:
Net investment income                                           0.177       0.364      0.396       0.414         0.433      0.434
Net realized and unrealized gain (loss) on investments         (0.129)      0.137      0.282      (0.197)        0.038      0.432
                                                             --------    --------   --------   ---------    ----------   --------
Total from investment operations                                0.048       0.501      0.678       0.217         0.471      0.866
                                                             --------    --------   --------   ---------    ----------   --------

Less dividends and distributions from:
Net investment income                                          (0.176)     (0.362)    (0.398)     (0.417)       (0.431)    (0.436)
Net realized gain on investments                               (0.022)     (0.049)        --          --            --         --
                                                             --------    --------   --------   ---------    ----------   --------
Total dividends and distributions                              (0.198)     (0.411)    (0.398)     (0.417)       (0.431)    (0.436)
                                                             --------    --------   --------   ---------    ----------   --------

Net asset value, end of period                               $ 10.970    $ 11.120   $ 11.030   $  10.750    $   10.950   $ 10.910
                                                             ========    ========   ========   =========    ==========   ========

Total return(3)                                                  0.44%       4.63%      6.39%       1.97%         4.46%      8.42%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                      $ 12,450    $ 12,269   $ 12,028   $  11,966    $    6,083   $  4,265
Ratio of expenses to average net assets                          1.64%       1.64%      1.64%       1.68%         1.71%      1.65%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid indirectly      1.66%       1.65%      1.64%       1.68%         1.71%      1.65%
Ratio of net investment income to average net assets             3.26%       3.30%      3.62%       3.77%         4.03%      4.07%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid indirectly      3.24%       3.29%      3.62%       3.77%         4.03%      4.07%
Portfolio turnover                                                  9%         10%        15%         30%           15%         7%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.002, a decrease in net
      realized and unrealized gain (loss) per share of $0.002, and an increase
      in the ratio of net investment income to average net assets of 0.02%. Per
      share data and ratios for periods prior to September 1, 2001 have not been
      restated to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager, as applicable. Performance would have been lower had
      the expense limitation not been in effect.

See accompanying notes

                                       25



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- -----------------------------------------------------------------------------------------------------------------------------------
                                                                   Delaware Tax-Free Minnesota Intermediate Fund Class A
- -----------------------------------------------------------------------------------------------------------------------------------
                                                            Six Months
                                                              Ended                             Year Ended
                                                            2/28/06(2)     8/31/05    8/31/04    8/31/03     8/31/02(1)    8/31/01
                                                           (Unaudited)
                                                                                                        
Net asset value, beginning of period                       $  11.010     $  10.890   $ 10.630   $ 10.720     $   10.580   $ 10.350

Income (loss) from investment operations:
Net investment income                                          0.209         0.407      0.444      0.469          0.512      0.526
Net realized and unrealized gain (loss) on investments        (0.130)        0.120      0.260     (0.088)         0.138      0.230
                                                           ---------     ---------   --------   --------     ----------   --------
Total from investment operations                               0.079         0.527      0.704      0.381          0.650      0.756
                                                           ---------     ---------   --------   --------     ----------   --------

Less dividends and distributions from:
Net investment income                                         (0.209)       (0.407)    (0.444)    (0.471)        (0.510)    (0.526)
                                                           ---------     ---------   --------   --------     ----------   --------
Total dividends and distributions                             (0.209)       (0.407)    (0.444)    (0.471)        (0.510)    (0.526)
                                                           ---------     ---------   --------   --------     ----------   --------

Net asset value, end of period                             $  10.880     $  11.010   $ 10.890   $ 10.630     $   10.720   $ 10.580
                                                           =========     =========   ========   ========     ==========   ========
Total return(3)                                                 0.73%         4.93%      6.73%      3.59%          6.34%      7.50%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                    $  49,293     $  52,958   $ 57,012   $ 57,635     $   51,034   $ 49,089
Ratio of expenses to average net assets                         0.75%         0.79%      0.84%      0.86%          0.85%      0.90%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid
   indirectly                                                   0.95%         0.95%      0.95%      0.96%          0.85%      0.93%
Ratio of net investment income to average net assets            3.86%         3.72%      4.10%      4.32%          4.86%      5.04%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid
   indirectly                                                   3.66%         3.56%      3.99%      4.22%          4.86%      5.01%
Portfolio turnover                                                10%           25%        30%        23%            35%        24%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of less than $0.001, a
      decrease in net realized and unrealized gain (loss) per share of less than
      $0.001, and an increase in the ratio of net investment income to average
      net assets of less than 0.01%. Per share data and ratios for periods prior
      to September 1, 2001 have not been restated to reflect these changes in
      accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects waivers and payment of fees
      by the manager and distributor, as applicable. Performance would have been
      lower had the expense limitation not been in effect.

See accompanying notes

                                       26



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ---------------------------------------------------------------------------------------------------------------------------------
                                                                 Delaware Tax-Free Minnesota Intermediate Fund Class B
- ---------------------------------------------------------------------------------------------------------------------------------
                                                        Six Months
                                                          Ended                               Year Ended
                                                        2/28/06(2)     8/31/05     8/31/04     8/31/03    8/31/02(1)     8/31/01
                                                       (Unaudited)
                                                                                                      
Net asset value, beginning of period                    $ 11.040      $ 10.920    $ 10.650    $ 10.740     $ 10.600     $ 10.370

Income (loss) from investment operations:
Net investment income                                      0.163         0.314       0.352       0.377        0.423        0.438
Net realized and unrealized gain (loss) on
   investments                                            (0.130)        0.120       0.270      (0.088)       0.137        0.232
                                                        --------      --------    --------    --------     --------     --------
Total from investment operations                           0.033         0.434       0.622       0.289        0.560        0.670
                                                        --------      --------    --------    --------     --------     --------

Less dividends and distributions from:
Net investment income                                     (0.163)       (0.314)     (0.352)     (0.379)      (0.420)      (0.440)
                                                        --------      --------    --------    --------     --------     --------
Total dividends and distributions                         (0.163)       (0.314)     (0.352)     (0.379)      (0.420)      (0.440)
                                                        --------      --------    --------    --------     --------     --------

Net asset value, end of period                          $ 10.910      $ 11.040    $ 10.920    $ 10.650     $ 10.740     $ 10.600
                                                        ========      ========    ========    ========     ========     ========

Total return(3)                                             0.31%         4.03%       5.91%       2.70%        5.43%        6.59%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                 $  2,206      $  2,811    $  3,224    $  4,002     $  2,852     $  2,443
Ratio of expenses to average net assets                     1.60%         1.64%       1.69%       1.71%        1.70%        1.75%
Ratio of expenses to average net assets prior to
   expense limitation and expenses paid indirectly          1.70%         1.70%       1.70%       1.73%        1.70%        1.78%
Ratio of net investment income to average net assets        3.01%         2.87%       3.25%       3.47%        4.01%        4.19%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid
   indirectly                                               2.91%         2.81%       3.24%       3.45%        4.01%        4.16%
Portfolio turnover                                            10%           25%         30%         23%          35%          24%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of less than $0.001, a
      decrease in net realized and unrealized gain (loss) per share of less than
      $0.001, and an increase in the ratio of net investment income to average
      net assets of less than 0.01%. Per share data and ratios for periods prior
      to September 1, 2001 have not been restated to reflect these changes in
      accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager, as applicable. Performance would have been lower had
      the expense limitation not been in effect.

See accompanying notes

                                       27



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ---------------------------------------------------------------------------------------------------------------------------------
                                                                 Delaware Tax-Free Minnesota Intermediate Fund Class C
- ---------------------------------------------------------------------------------------------------------------------------------
                                                        Six Months
                                                          Ended                               Year Ended
                                                        2/28/06(2)     8/31/05     8/31/04     8/31/03    8/31/02(1)     8/31/01
                                                       (Unaudited)
                                                                                                      
Net asset value, beginning of period                    $ 11.030      $ 10.910    $ 10.640    $ 10.730     $ 10.590     $ 10.360

Income (loss) from investment operations:
Net investment income                                      0.163         0.314       0.352       0.377        0.423        0.437
Net realized and unrealized gain (loss) on
   investments                                            (0.130)        0.120       0.270      (0.088)       0.137        0.233
                                                        --------      --------    --------    --------     --------     --------
Total from investment operations                           0.033         0.434       0.622       0.289        0.560        0.670
                                                        --------      --------    --------    --------     --------     --------

Less dividends and distributions from:
Net investment income                                     (0.163)       (0.314)     (0.352)     (0.379)      (0.420)      (0.440)
                                                        --------      --------    --------    --------     --------     --------
Total dividends and distributions                         (0.163)       (0.314)     (0.352)     (0.379)      (0.420)      (0.440)
                                                        --------      --------    --------    --------     --------     --------

Net asset value, end of period                          $ 10.900      $ 11.030    $ 10.910    $ 10.640     $ 10.730     $ 10.590
                                                        ========      ========    ========    ========     ========     ========

Total return(3)                                             0.31%         4.04%       5.91%       2.71%        5.44%        6.59%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                 $  4,904      $  5,996    $  7,188    $  6,544     $  4,887     $  3,059
Ratio of expenses to average net assets                     1.60%         1.64%       1.69%       1.71%        1.70%        1.75%
Ratio of expenses to average net assets prior to
   expense limitation and expenses paid indirectly          1.70%         1.70%       1.70%       1.73%        1.70%        1.78%
Ratio of net investment income to average net assets        3.01%         2.87%       3.25%       3.47%        4.01%        4.19%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid
   indirectly                                               2.91%         2.81%       3.24%       3.45%        4.01%        4.16%
Portfolio turnover                                            10%           25%         30%         23%          35%          24%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of less than $0.001, a
      decrease in net realized and unrealized gain (loss) per share of less than
      $0.001, and an increase in the ratio of net investment income to average
      net assets of less than 0.01%. Per share data and ratios for periods prior
      to September 1, 2001 have not been restated to reflect these changes in
      accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager, as applicable. Performance would have been lower had
      the expense limitation not been in effect.

See accompanying notes

                                       28



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ---------------------------------------------------------------------------------------------------------------------------------
                                                                 Delaware Minnesota High-Yield Municipal Bond Fund Class A
- ---------------------------------------------------------------------------------------------------------------------------------
                                                        Six Months
                                                           Ended                              Year Ended
                                                        2/28/06(2)     8/31/05     8/31/04     8/31/03    8/31/02(1)     8/31/01
                                                       (Unaudited)
                                                                                                      
Net asset value, beginning of period                    $ 10.610      $ 10.240    $  9.910    $  9.950     $  9.900     $  9.650

Income (loss) from investment operations:
Net investment income                                      0.220         0.469       0.512       0.550        0.586        0.581
Net realized and unrealized gain (loss) on
   investments                                            (0.101)        0.372       0.328      (0.030)       0.056        0.243
                                                        --------      --------    --------    --------     --------     --------
Total from investment operations                           0.119         0.841       0.840       0.520        0.642        0.824
                                                        --------      --------    --------    --------     --------     --------

Less dividends and distributions from:
Net investment income                                     (0.219)       (0.471)     (0.510)     (0.560)      (0.592)      (0.574)
                                                        --------      --------    --------    --------     --------     --------
Total dividends and distributions                         (0.219)       (0.471)     (0.510)     (0.560)      (0.592)      (0.574)
                                                        --------      --------    --------    --------     --------     --------

Net asset value, end of period                          $ 10.510      $ 10.610    $ 10.240    $  9.910     $  9.950     $  9.900
                                                        ========      ========    ========    ========     ========     ========

Total return(3)                                             1.15%         8.40%       8.65%       5.33%        6.74%        8.84%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                 $ 71,511      $ 63,802    $ 42,636    $ 36,644     $ 34,867     $ 34,615
Ratio of expenses to average net assets                     0.89%         0.89%       0.75%       0.75%        0.75%        0.75%
Ratio of expenses to average net assets prior to
   expense limitation and expenses paid indirectly          0.97%         0.98%       1.00%       1.04%        1.01%        0.94%
Ratio of net investment income to average net assets        4.23%         4.50%       5.03%       5.48%        5.98%        6.01%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid
   indirectly                                               4.15%         4.41%       4.78%       5.19%        5.72%        5.82%
Portfolio turnover                                             6%            3%         24%         32%          33%          13%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.001, a decrease in net
      realized and unrealized gain (loss) per share of $0.001, and an increase
      in the ratio of net investment income to average net assets of 0.01%. Per
      share data for periods prior to September 1, 2001 have not been restated
      to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager. Performance would have been lower had the expense
      limitation not been in effect.

See accompanying notes

                                       29



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ------------------------------------------------------------------------------------------------------------------------------------
                                                                   Delaware Minnesota High-Yield Municipal Bond Fund Class B
- ------------------------------------------------------------------------------------------------------------------------------------
                                                             Six Months
                                                               Ended                              Year Ended
                                                             2/28/06(2)    8/31/05      8/31/04    8/31/03    8/31/02(1)    8/31/01
                                                            (Unaudited)
                                                                                                         
Net asset value, beginning of period                         $ 10.630     $ 10.250     $  9.930   $  9.970     $  9.910    $  9.650

Income (loss) from investment operations:
Net investment income                                           0.181        0.391        0.435      0.475        0.513       0.509
Net realized and unrealized gain (loss) on investments         (0.101)       0.381        0.318     (0.030)       0.063       0.248
                                                             --------     --------     --------   --------     --------    --------
Total from investment operations                                0.080        0.772        0.753      0.445        0.576       0.757
                                                             --------     --------     --------   --------     --------    --------

Less dividends and distributions from:
Net investment income                                          (0.180)      (0.392)      (0.433)    (0.485)      (0.516)     (0.497)
                                                             --------     --------     --------   --------     --------    --------
Total dividends and distributions                              (0.180)      (0.392)      (0.433)    (0.485)      (0.516)     (0.497)
                                                             --------     --------     --------   --------     --------    --------

Net asset value, end of period                               $ 10.530     $ 10.630     $ 10.250   $  9.930     $  9.970    $  9.910
                                                             ========     ========     ========   ========     ========    ========

Total return(3)                                                  0.77%        7.68%        7.71%      4.55%        6.03%       8.09%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                      $ 10,554     $ 10,505     $ 12,463   $ 12,513     $ 13,379    $ 12,932
Ratio of expenses to average net assets                          1.64%        1.64%        1.50%      1.50%        1.50%       1.50%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid indirectly      1.72%        1.73%        1.75%      1.79%        1.76%       1.69%
Ratio of net investment income to average net assets             3.48%        3.75%        4.28%      4.73%        5.23%       5.26%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid indirectly      3.40%        3.66%        4.03%      4.44%        4.97%       5.07%
Portfolio turnover                                                  6%           3%          24%        32%          33%         13%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.001, a decrease in net
      realized and unrealized gain (loss) per share of $0.001, and an increase
      in the ratio of net investment income to average net assets of 0.01%. Per
      share data for periods prior to September 1, 2001 have not been restated
      to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager. Performance would have been lower had the expense
      limitation not been in effect.

See accompanying notes

                                       30



Financial
   HIGHLIGHTS (CONTINUED)

Selected data for each share of the Fund outstanding
throughout each period were as follows:



- ------------------------------------------------------------------------------------------------------------------------------------
                                                                   Delaware Minnesota High-Yield Municipal Bond Fund Class C
- ------------------------------------------------------------------------------------------------------------------------------------
                                                             Six Months
                                                               Ended                              Year Ended
                                                             2/28/06(2)    8/31/05     8/31/04    8/31/03     8/31/02(1)    8/31/01
                                                            (Unaudited)
                                                                                                         
Net asset value, beginning of period                         $ 10.630     $ 10.250     $  9.930   $  9.970     $  9.910    $  9.650

Income (loss) from investment operations:
Net investment income                                           0.181        0.391        0.435      0.475        0.513       0.509
Net realized and unrealized gain (loss) on investments         (0.101)       0.381        0.318     (0.030)       0.063       0.248
                                                             --------     --------     --------   --------     --------    --------
Total from investment operations                                0.080        0.772        0.753      0.445        0.576       0.757
                                                             --------     --------     --------   --------     --------    --------

Less dividends and distributions from:
Net investment income                                          (0.180)      (0.392)      (0.433)    (0.485)      (0.516)     (0.497)
                                                             --------     --------     --------   --------     --------    --------
Total dividends and distributions                              (0.180)      (0.392)      (0.433)    (0.485)      (0.516)     (0.497)
                                                             --------     --------     --------   --------     --------    --------

Net asset value, end of period                               $ 10.530     $ 10.630     $ 10.250   $  9.930     $  9.970    $  9.910
                                                             ========     ========     ========   ========     ========    ========

Total return(3)                                                  0.77%        7.68%        7.71%      4.54%        6.03%       8.09%

Ratios and supplemental data:
Net assets, end of period (000 omitted)                      $ 18,431     $ 15,809     $ 11,435   $ 10,754     $  7,840    $  6,807
Ratio of expenses to average net assets                          1.64%        1.64%        1.50%      1.50%        1.50%       1.50%
Ratio of expenses to average net assets
   prior to expense limitation and expenses paid indirectly      1.72%        1.73%        1.75%      1.79%        1.76%       1.69%
Ratio of net investment income to average net assets             3.48%        3.75%        4.28%      4.73%        5.23%       5.26%
Ratio of net investment income to average net assets
   prior to expense limitation and expenses paid indirectly      3.40%        3.66%        4.03%      4.44%        4.97%       5.07%
Portfolio turnover                                                  6%           3%          24%        32%          33%         13%


(1)   As required, effective September 1, 2001, the Fund adopted the provisions
      of the AICPA Audit and Accounting Guide for Investment Companies that
      required amortization of all premiums and discounts on debt securities.
      The effect of these changes for the year ended August 31, 2002 was an
      increase in net investment income per share of $0.001, a decrease in net
      realized and unrealized gain (loss) per share of $0.001, and an increase
      in the ratio of net investment income to average net assets of 0.01%. Per
      share data for periods prior to September 1, 2001 have not been restated
      to reflect these changes in accounting.

(2)   Ratios and portfolio turnover have been annualized and total return has
      not been annualized.

(3)   Total investment return is based on the change in net asset value of a
      share during the period and assumes reinvestment of dividends and
      distributions at net asset value and does not reflect the impact of a
      sales charge. Total investment return reflects a waiver and payment of
      fees by the manager. Performance would have been lower had the expense
      limitation not been in effect.

See accompanying notes

                                       31



- --------------------------------------------------------------------------------
                                         Delaware Minnesota Municipal Bond Funds
Notes                                    February 28, 2006 (Unaudited)
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS

Voyageur Mutual Funds (the "Trust") is organized as a Delaware statutory trust
and offers five series: Delaware Minnesota High-Yield Municipal Bond Fund,
Delaware National High-Yield Municipal Bond Fund, Delaware Tax-Free California
Fund, Delaware Tax-Free Idaho Fund and Delaware Tax-Free New York Fund. Voyageur
Insured Funds (the "Trust") is organized as a Delaware statutory trust and
offers two series: Delaware Tax-Free Arizona Insured Fund and Delaware Tax-Free
Minnesota Insured Fund. Voyageur Tax Free Funds (the "Trust") is organized as a
Delaware statutory trust and offers the Delaware Tax-Free Minnesota Fund.
Voyageur Intermediate Tax Free Funds (the "Trust") is organized as a Delaware
statutory trust and offers the Delaware Tax-Free Minnesota Intermediate Fund.
These financial statements and related notes pertain to Delaware Tax-Free
Minnesota Fund, Delaware Tax-Free Minnesota Insured Fund, Delaware Tax-Free
Minnesota Intermediate Fund and Delaware Minnesota High-Yield Municipal Bond
Fund (each referred to as a "Fund" or, collectively, the "Funds"). The above
Trusts are open-end investment companies. The Funds are considered
non-diversified under the Investment Company Act of 1940, as amended, and offer
Class A, Class B, and Class C shares. Class A shares are sold with a front-end
sales charge of up to 4.50% for Delaware Tax-Free Minnesota Fund, Delaware
Tax-Free Minnesota Insured Fund and Delaware Minnesota High-Yield Municipal Bond
Fund and up to 2.75% for Delaware Tax-Free Minnesota Intermediate Fund. Class B
shares are sold with a contingent deferred sales charge that declines from 4% to
zero for Delaware Tax-Free Minnesota Fund, Delaware Tax-Free Minnesota Insured
Fund and Delaware Minnesota High-Yield Municipal Bond Fund and that declines
from 2% to zero for Delaware Tax-Free Minnesota Intermediate Fund, depending
upon the period of time the shares are held. Class B shares will automatically
convert to Class A on a quarterly basis approximately eight years after purchase
for Delaware Tax-Free Minnesota Fund, Delaware Tax-Free Minnesota Insured Fund
and Delaware Minnesota High-Yield Municipal Bond Fund and approximately five
years after purchase for Delaware Tax-Free Minnesota Intermediate Fund. Class C
shares are sold with a contingent deferred sales charge of 1%, if redeemed
during the first twelve months.

The investment objective of Delaware Tax-Free Minnesota Fund and Delaware
Tax-Free Minnesota Insured Fund is to seek as high a level of current income
exempt from federal income tax and from the Minnesota state personal income tax,
as is consistent with preservation of capital.

The investment objective of Delaware Tax-Free Minnesota Intermediate Fund is to
seek to provide investors with preservation of capital and, secondarily, current
income exempt from federal income tax and from the Minnesota state personal
income tax, by maintaining a dollar-weighted average effective portfolio
maturity of 10 years or less.

The investment objective of Delaware Minnesota High-Yield Municipal Bond Fund is
to seek as high a level of current income exempt from federal income tax and
from the Minnesota state personal income tax, primarily through investment in
medium- and lower-grade municipal obligations.

1. Significant Accounting Policies

The following accounting policies are in accordance with U.S. generally accepted
accounting principles and are consistently followed by the Funds.

Security Valuation - Long-term debt securities are valued by an independent
pricing service and such prices are believed to reflect the fair value of such
securities. Short-term debt securities having less than 60 days to maturity are
valued at amortized cost, which approximates market value. Open-end investment
companies are valued at their published net asset value. Other securities and
assets for which market quotations are not readily available are valued at fair
value as determined in good faith under the direction of each Fund's Board of
Trustees. In determining whether market quotations are readily available or fair
valuation will be used, various factors will be taken into consideration, such
as market closures, aftermarket trading or significant events after local market
trading (e.g., government actions or pronouncements, trading volume or
volatility on markets, exchanges among dealers, or news events).

Federal Income Taxes - Each Fund intends to continue to qualify for federal
income tax purposes as a regulated investment company and make the requisite
distributions to shareholders. Accordingly, no provision for federal income
taxes has been made in the financial statements.

Class Accounting - Investment income and common expenses are allocated to the
classes of the Funds on the basis of "settled shares" of each class in relation
to the net assets of the Funds. Realized and unrealized gain (loss) on
investments are allocated to the various classes of the Funds on the basis of
daily net assets of each class. Distribution expenses relating to a specific
class are charged directly to that class.

Use of Estimates - The preparation of financial statements in conformity with
U.S. generally accepted accounting principles requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities at the date of the financial statements and the reported amounts of
revenues and expenses during the reporting period. Actual results could differ
from those estimates.

Other - Expenses common to all funds within the Delaware Investments(R) Family
of Funds are allocated amongst the funds on the basis of average net assets.
Management fees and some other expenses are paid monthly. Security transactions
are recorded on the date the securities are purchased or sold (trade date) for
financial reporting purposes. Costs used in calculating realized gains and
losses on the sale of investment securities are those of the specific securities
sold. Interest income is recorded on the accrual basis. Discounts and premiums
are amortized to interest income over the lives of the respective securities.
Each Fund declares dividends daily from net investment income and pays such
dividends monthly and declares and pays distributions from net realized gain on
investments, if any, annually.

The Funds receive earnings credits from their custodian when positive cash
balances are maintained, which are used to offset custody fees. The expense paid
under the above arrangement is included in custodian fees on the Statements of
Operations with the corresponding expense offset shown as "expense paid
indirectly."

                                       32



- --------------------------------------------------------------------------------
                                         Delaware Minnesota Municipal Bond Funds
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

2. Investment Management, Administration Agreements and Other Transactions with
Affiliates

In accordance with the terms of its respective investment management agreement,
each Fund pays Delaware Management Company (DMC), a series of Delaware
Management Business Trust and the investment manager, an annual fee based on
each Fund's average daily net assets as follows:



                                                  Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                              Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                               Minnesota Fund        Insured Fund     Intermediate Fund   Municipal Bond Fund
                              -----------------   -----------------   -----------------   -------------------
                                                                              
On the first $500 million          0.550%               0.500%              0.500%              0.550%
On the next $500 million           0.500%               0.475%              0.475%              0.500%
On the next $1.5 billion           0.450%               0.450%              0.450%              0.450%
In excess of $2.5 billion          0.425%               0.425%              0.425%              0.425%


DMC has contractually agreed to waive that portion, if any, of its management
fee and reimburse each Fund to the extent necessary to ensure that annual
operating expenses, exclusive of taxes, interest, brokerage commissions,
distribution fees, certain insurance costs and extraordinary expenses, do not
exceed specified percentages of average daily net assets as shown below.



                                                      Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                                  Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                                    Minnesota Fund       Insured Fund     Intermediate Fund   Municipal Bond Fund
                                  -----------------   -----------------   -----------------   -------------------
                                                                                  
Operating expense limitation
   as a percentage of average
   daily net assets (per annum)         0.69%                0.64%               0.60%               0.64%

Expiration date                       10/31/06             10/31/06            10/31/06            10/31/06

Effective December 30, 2005,
   operating expense limitation
   as a percentage of average
   daily net assets (per annum)         0.68%                0.64%               0.60%               0.64%

Expiration date                       12/31/06             12/31/06            12/31/06            12/31/06


Delaware Service Company, Inc. (DSC), an affiliate of DMC, provides accounting,
administration, dividend disbursing and transfer agent services. Each Fund pays
DSC a monthly fee computed at the annual rate of 0.04% of each Fund's average
daily net assets for accounting and administration services. Each Fund pays DSC
a monthly fee based on the number of shareholder accounts for dividend
disbursing and transfer agent services.

Pursuant to a distribution agreement and distribution plan, each Fund pays
Delaware Distributors, L.P. (DDLP), the distributor and an affiliate of DMC, an
annual distribution and service fee not to exceed 0.25% of the average daily net
assets of the Class A shares and 1.00% of the average daily net assets of the
Class B and C shares. DDLP has contracted to waive distribution fees through
December 31, 2006 in order to prevent distribution and service fees of Class A
shares from exceeding 0.15% of average daily net assets for Delaware Tax-Free
Minnesota Intermediate Fund.

At February 28, 2006, the Funds had liabilities payable to affiliates as
follows:



                                                            Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                                        Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                                          Minnesota Fund       Insured Fund     Intermediate Fund   Municipal Bond Fund
                                        -----------------   -----------------   -----------------   -------------------
                                                                                        
Investment management fee
   payable to DMC                           $166,311             $86,117             $16,671              $33,844

Dividend disbursing, transfer agent,
   accounting and administration fees
   and expenses payable to DSC                62,562              40,188              12,633               17,823

Distribution fee payable to DDLP              97,000              51,889               8,545               45,184
Other expenses payable
   to DMC and affiliates*                     20,907               8,863               4,629                9,148


*     DMC, as part of its administrative services, pays operating expenses on
      behalf of each Fund and is reimbursed on a periodic basis. Such expenses
      include items such as printing of shareholder reports, fees for audit,
      legal and tax services, registration fees and trustees' fees.

As provided in the investment management agreement, each Fund bears the cost of
certain legal services expenses, including internal legal services provided to
each Fund by DMC employees. For the six months ended February 28, 2006, each
Fund was charged internal legal services provided by DMC as follows:

                    Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
Delaware Tax-Free       Minnesota           Minnesota           High-Yield
 Minnesota Fund       Insured Fund      Intermediate Fund   Municipal Bond Fund
- -----------------   -----------------   -----------------   -------------------
     $14,674             $8,934              $2,179               $3,472

                                       33



- --------------------------------------------------------------------------------
                                         Delaware Minnesota Municipal Bond Funds
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

2. Investment Management, Administration Agreements and Other Transactions with
Affiliates (continued)

For the six months ended February 28, 2006, DDLP earned commissions on sales of
Class A shares for each Fund as follows:

                    Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
Delaware Tax-Free       Minnesota           Minnesota           High-Yield
  Minnesota Fund       Insured Fund     Intermediate Fund   Municipal Bond Fund
- -----------------   -----------------   -----------------   -------------------
     $38,062             $12,282             $2,625               $32,848

For the six months ended February 28, 2006, DDLP received gross contingent
deferred sales charge commissions on redemption of each Fund's Class A, Class B
and Class C shares, respectively. These commissions were entirely used to offset
up-front commissions previously paid by DDLP to broker-dealers on sales of those
shares. The amounts received were as follows:



                                         Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                     Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                       Minnesota Fund       Insured Fund     Intermediate Fund   Municipal Bond Fund
                     -----------------   -----------------   -----------------   -------------------
                                                                     
Class A                   $  637              $   32              $1,692                $9,896

Class B                    1,861               4,966               1,758                 3,445

Class C                    1,300               1,987                 993                 3,213


Certain officers of DMC, DSC, and DDLP are officers and/or trustees of the
Trusts. These officers and trustees are paid no compensation by the Funds.

3. Investments

For the six months ended February 28, 2006, the Funds made purchases and sales
of investment securities other than short-term investments as follows:



                                         Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                     Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                      Minnesota Fund        Insured Fund     Intermediate Fund   Municipal Bond Fund
                     -----------------   -----------------   -----------------   -------------------
                                                                     
Purchases               $39,425,366         $10,080,534          $2,855,170          $15,240,177

Sales                    34,101,825          13,179,100           6,455,541            2,460,055


At February 28, 2006, the cost of investments for federal income tax purposes
has been estimated since the final tax characteristics cannot be determined
until fiscal year end. At February 28, 2006, the cost of investments and
unrealized appreciation (depreciation) for each Fund were as follows:



                                                           Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                                       Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                                        Minnesota Fund        Insured Fund     Intermediate Fund   Municipal Bond Fund
                                       -----------------   -----------------   -----------------   -------------------
                                                                                       
Cost of investments                      $ 382,382,401      $   219,507,859     $    54,233,764      $    98,639,056
                                         =============      ===============     ===============      ===============

Aggregate unrealized appreciation        $  19,252,802      $    16,847,279     $     2,124,977      $     3,115,360
Aggregate unrealized depreciation             (501,503)             (63,817)            (66,953)            (709,771)
                                         -------------      ---------------     ---------------      ---------------
Net unrealized appreciation              $  18,751,299      $    16,783,462     $     2,058,024      $     2,405,589
                                         =============      ===============     ===============      ===============


4. Dividend and Distribution Information

Income and long-term capital gain distributions are determined in accordance
with federal income tax regulations, which may differ from U.S. generally
accepted accounting principles. Additionally, net short-term gains on sales of
investment securities are treated as ordinary income for federal income tax
purposes. The tax character of dividends and distributions paid during the six
months ended February 28, 2006 and year ended August 31, 2005 was as follows:



                                                           Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                                       Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                                         Minnesota Fund      Insured Fund      Intermediate Fund   Municipal Bond Fund
                                       -----------------   -----------------   -----------------   -------------------
                                                                                       
Six months ended 2/28/06*
Tax-exempt income                         $ 8,045,053         $ 4,686,211          $1,096,693           $1,857,099
Ordinary income                                31,672                  --                  --                   --
Long-term capital gain                        791,810             486,974                  --                   --
                                          -----------         -----------          ----------           ----------
Total                                     $ 8,868,535         $ 5,173,185          $1,096,693           $1,857,099
                                          ===========         ===========          ==========           ==========

Year ended 8/31/05
Tax-exempt income                         $15,803,097         $ 9,960,686          $2,350,076           $3,194,622
Long-term capital gain                      4,531,605           1,119,256                  --                   --
                                          -----------         -----------          ----------           ----------
Total                                     $20,334,702         $11,079,942          $2,350,076           $3,194,622
                                          ===========         ===========          ==========           ==========


*     Tax information for the period ended February 28, 2006 is an estimate and
      the tax character of dividends and distributions may be redesignated at
      fiscal year end.

                                       34



- --------------------------------------------------------------------------------
                                         Delaware Minnesota Municipal Bond Funds
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

4. Dividend and Distribution Information (continued)

The components of net assets are estimated since final tax characteristics
cannot be determined until fiscal year end. As of February 28, 2006, the
estimated components of net assets on a tax basis were as follows:



                                                                Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                                            Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                                             Minnesota Fund        Insured Fund     Intermediate Fund   Municipal Bond Fund
                                            -----------------   -----------------   -----------------   -------------------
                                                                                            
Shares of beneficial interest                 $384,593,993        $222,056,876         $55,733,282         $100,491,739
Undistributed tax-exempt income                    147,934                  --                  --                  294
Undistributed long-term capital gain               139,580             (10,836)                 --                   --
Capital loss carryforwards                              --                  --          (1,275,535)          (2,433,778)
Six month period realized gains (losses)                --                  --             (81,340)              32,009
Post-October losses                                     --            (102,400)            (31,034)                  --
Unrealized appreciation of investments          18,751,299          16,783,462           2,058,024            2,405,589
                                              ------------        ------------         -----------         ------------
Net assets                                    $403,632,806        $238,727,102         $56,403,397         $100,495,853
                                              ============        ============         ===========         ============


The differences between book basis and tax basis components of net assets are
primarily attributable to tax deferral of losses on wash sales and tax treatment
of market discount and premium on debt instruments.

Post-October losses represent losses realized on investment transactions from
November 1, 2005 through February 28, 2006 that, in accordance with federal
income tax regulations, each Fund has elected to defer and treat as having
arisen in the following fiscal year.

For financial reporting purposes, capital accounts are adjusted to reflect the
tax character of permanent book/tax differences. Reclassifications are primarily
due to tax treatment of market discount on certain debt instruments. Results of
operations and net assets were not affected by these reclassifications. For the
six months ended February 28, 2006, the Funds recorded an estimate of these
differences since the final tax characteristics cannot be determined until
fiscal year end.



                                                              Delaware Tax-Free   Delaware Tax-Free   Delaware Minnesota
                                          Delaware Tax-Free       Minnesota           Minnesota           High-Yield
                                            Minnesota Fund       Insured Fund     Intermediate Fund   Municipal Bond Fund
                                          -----------------   -----------------   -----------------   -------------------
                                                                                          
Undistributed (Accumulated)
   net investment income (loss)               $   80,282          $  (23,723)         $   18              $ (9,015)
Accumulated realized gain (loss)                 (80,282)             23,723             (18)                9,015


For federal income tax purposes, capital loss carryforwards may be carried
forward and applied against future capital gains. Capital loss carryforwards
remaining at August 31, 2005 will expire as follows:

                      Delaware Tax-Free   Delaware Minnesota
  Year of                 Minnesota           High-Yield
Expiration            Intermediate Fund   Municipal Bond Fund
- ----------            -----------------   -------------------
   2008                   $       --           $  181,123
   2009                    1,024,839            1,267,552
   2010                        4,037               57,521
   2011                      246,659              243,334
   2012                           --              684,248
                          ----------           ----------
   Total                  $1,275,535           $2,433,778
                          ==========           ==========

For the six months ended February 28, 2006, the Delaware Tax-Free Minnesota
Intermediate Fund had capital losses of $81,340 which may increase the capital
loss carryforwards and Delaware Minnesota High-Yield Municipal Bond Fund had
capital gains $32,009 which may reduce the capital loss carryforwards.

                                       35



- --------------------------------------------------------------------------------
                                         Delaware Minnesota Municipal Bond Funds
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

5. Capital Shares

Transactions in capital shares were as follows:



                                        Delaware Tax-Free               Delaware Tax-Free
                                          Minnesota Fund              Minnesota Insured Fund
                                    -------------------------         ------------------------
                                    Six Months        Year            Six Months       Year
                                       Ended          Ended              Ended         Ended
                                      2/28/06        8/31/05            2/28/06       8/31/05
                                                                        
Shares sold:
   Class A                           2,140,052      2,605,601            311,445     1,206,325
   Class B                              51,547         82,005             21,547        68,954
   Class C                             183,801        323,335            103,724       200,888

Shares issued upon reinvestments
   of dividends and distributions:
   Class A                             438,005        999,673            299,506       620,080
   Class B                              12,278         33,587             15,053        35,325
   Class C                              16,975         34,287             14,142        29,235
                                    ----------     ----------         ----------    ----------
                                     2,842,658      4,078,488            765,417     2,160,807
                                    ----------     ----------         ----------    ----------
Shares repurchased:
   Class A                          (1,233,675)    (2,466,727)        (1,407,217)   (2,021,780)
   Class B                             (37,238)      (262,319)           (98,433)     (293,001)
   Class C                            (148,622)      (114,430)           (85,796)     (217,296)
                                    ----------     ----------         ----------    ----------
                                    (1,419,535)    (2,843,476)        (1,591,446)   (2,532,077)
                                    ----------     ----------         ----------    ----------
Net increase (decrease)              1,423,123      1,235,012           (826,029)     (371,270)
                                    ==========     ==========         ==========    ==========




                                       Delaware Tax-Free            Delaware Minnesota High-Yield
                                   Minnesota Intermediate Fund           Municipal Bond Fund
                                   ---------------------------      -----------------------------
                                    Six Months        Year            Six Months       Year
                                       Ended          Ended             Ended         Ended
                                      2/28/06        8/31/05           2/28/06       8/31/05
                                                                        
Shares sold:
   Class A                             188,954        811,048          1,204,683     2,173,370
   Class B                                 991          4,238            106,016       117,618
   Class C                              52,171         67,333            354,780       547,300

Shares issued upon reinvestment
   of dividends and distributions:
   Class A                              66,854        139,829             81,252       133,229
   Class B                               2,631          5,713             11,163        24,644
   Class C                               5,522         14,403             19,190        27,930
                                    ----------     ----------         ----------    ----------
                                       317,123      1,042,564          1,777,084     3,024,091
                                    ----------     ----------         ----------    ----------
Shares repurchased:
   Class A                            (537,393)    (1,375,055)          (496,572)     (458,057)
   Class B                             (56,029)       (50,607)          (103,253)     (369,311)
   Class C                            (151,659)      (196,858)          (111,289)     (202,901)
                                    ----------     ----------         ----------    ----------
                                      (745,081)    (1,622,520)          (711,114)   (1,030,269)
                                    ----------     ----------         ----------    ----------
Net increase (decrease)               (427,958)      (579,956)         1,065,970     1,993,822
                                    ==========     ==========         ==========    ==========


For the six months ended February 28, 2006 and the year ended August 31, 2005,
the following shares were converted from Class B to Class A shares. The
respective amounts are included in Class B redemptions and Class A subscriptions
in the tables above and the Statements of Changes in Net Assets.



                                                                Six Months Ended                   Year Ended
                                                                    2/28/06                          8/31/05
                                                          ----------------------------   --------------------------------
                                                          Class B   Class A              Class B     Class A
                                                           shares    shares    Value      shares      shares     Value
                                                          -------   -------   --------   -------     -------   ----------
                                                                                             
Delaware Tax-Free Minnesota Fund                           13,341    13,351   $167,692   113,069     113,158   $1,420,503
Delaware Tax-Free Minnesota Insured Fund                   34,632    34,599    378,170   122,887     122,776    1,352,796
Delaware Tax-Free Minnesota Intermediate Fund               5,907     5,925     64,157    21,297      21,349      231,714
Delaware Minnesota High-Yield Municipal Bond Fund          68,110    68,229    711,826   192,047     192,388    1,991,365


                                       36



- --------------------------------------------------------------------------------
                                         Delaware Minnesota Municipal Bond Funds
Notes
- --------------------------------------------------------------------------------
   TO FINANCIAL STATEMENTS (CONTINUED)

6. Line of Credit

Each Fund, along with certain other funds in the Delaware Investments Family of
Funds (the "Participants"), participates in a $225,000,000 revolving line of
credit facility to be used for temporary or emergency purposes as an additional
source of liquidity to fund redemptions of investor shares. The Participants are
charged an annual commitment fee, which is allocated across the Participants on
the basis of each fund's allocation of the entire facility. The Participants may
borrow up to a maximum of one third of their net assets under the agreement. The
Funds had no amounts outstanding as of February 28, 2006, or at any time during
the period.

7. Credit and Market Risk

The Funds concentrate their investments in securities issued by municipalities,
mainly in Minnesota. The value of these investments may be adversely affected by
new legislation within the state, regional or local economic conditions, and
differing levels of supply and demand for municipal bonds. Many municipalities
insure repayment for their obligations. Although bond insurance reduces the risk
of loss due to default by an issuer, such bonds remain subject to the risk that
market value may fluctuate for other reasons and there is no assurance that the
insurance company will meet its obligations. These securities have been
identified in the Statements of Net Assets.

The Funds may invest in inverse floating rate securities ("inverse floaters"), a
type of derivative tax-exempt obligation with floating or variable interest
rates that move in the opposite direction of short-term interest rates, usually
at an accelerated speed. Consequently, the market values of inverse floaters
will generally be more volatile than other tax-exempt investments. Such
securities are identified on the Statements of Net Assets.

The Funds may invest in advanced refunded bonds, escrow secured bonds or
defeased bonds. Under current federal tax laws and regulations, state and local
government borrowers are permitted to refinance outstanding bonds by issuing new
bonds. The issuer refinances the outstanding debt to either reduce interest
costs or to remove or alter restrictive covenants imposed by the bonds being
refinanced. A refunding transaction where the municipal securities are being
refunded within 90 days or less from the issuance of the refunding issue is
known as a "current refunding." "Advance refunded bonds" are bonds in which the
refunded bond issue remains outstanding for more than 90 days following the
issuance of the refunding issue. In an advance refunding, the issuer will use
the proceeds of a new bond issue to purchase high grade interest bearing debt
securities which are then deposited in an irrevocable escrow account held by an
escrow agent to secure all future payments of principal and interest and bond
premium of the advance refunded bond. Bonds are "escrowed to maturity" when the
proceeds of the refunding issue are deposited in an escrow account for
investment sufficient to pay all of the principal and interest on the original
interest payment and maturity dates. Bonds are considered "pre-refunded" when
the refunding issue's proceeds are escrowed only until a permitted call date or
dates on the refunded issue with the refunded issue being redeemed at the time,
including any required premium. Bonds become "defeased" when the rights and
interests of the bondholders and of their lien on the pledged revenues or other
security under the terms of the bond contract are substituted with an
alternative source of revenues (the escrow securities) sufficient to meet
payments of principal and interest to maturity or to the first call dates.
Escrowed secured bonds will often receive a rating of AAA from Moody's Investors
Service, Inc., Standard & Poor's Rating Group, and/or Fitch due to the strong
credit quality of the escrow securities and the irrevocable nature of the escrow
deposit agreement. The Tax-Free Minnesota Insured Fund will purchase escrow
secured bonds without additional insurance only where the escrow is invested in
securities of the U.S. government or agencies or instrumentalities of the U.S.
government.

Each Fund may invest a portion of its total assets in illiquid securities, which
may include securities with contractual restrictions on resale, securities
exempt from registration under Rule 144A of the Securities Act of 1933, as
amended, and other securities which may not be readily marketable. The relative
illiquidity of these securities may impair each Fund from disposing of them in a
timely manner and at a fair price when it is necessary or desirable to do so.
While maintaining oversight, each Fund's Board of Trustees has delegated to DMC
the day-to-day functions of determining whether individual securities are liquid
for purposes of each Fund's limitation on investments in illiquid assets. At
February 28, 2006, there were no Rule 144A securities. Illiquid securities have
been identified on the Statements of Net Assets.

8. Contractual Obligations

The Funds enter into contracts in the normal course of business that contain a
variety of indemnifications. The Funds' maximum exposure under these
arrangements is unknown. However, the Funds have not had prior claims or losses
pursuant to these contracts. Management has reviewed each Fund's existing
contracts and expects the risk of loss to be remote.

                                       37



- --------------------------------------------------------------------------------
About
- --------------------------------------------------------------------------------
   THE ORGANIZATION

This semiannual report is for the information of Delaware Tax-Free Minnesota
Fund, Delaware Tax-Free Minnesota Insured Fund, Delaware Tax-Free Minnesota
Intermediate Fund, and Delaware Minnesota High-Yield Municipal Bond Fund
shareholders, but it may be used with prospective investors when preceded or
accompanied by a current prospectus for Delaware Tax-Free Minnesota Fund,
Delaware Tax-Free Minnesota Insured Fund, Delaware Tax-Free Minnesota
Intermediate Fund, and Delaware Minnesota High-Yield Municipal Bond Fund and the
Delaware Investments(R) Performance Update for the most recently completed
calendar quarter. The prospectus sets forth details about charges, expenses,
investment objectives, and operating policies of the Fund. You should read the
prospectus carefully before you invest. The figures in this report represent
past results that are not a guarantee of future results. The return and
principal value of an investment in the Fund will fluctuate so that shares, when
redeemed, may be worth more or less than their original cost.

Board of Trustees

Jude T. Driscoll
Chairman
Delaware Investments(R) Family of Funds
Philadelphia, PA

Thomas L. Bennett
Private Investor
Rosemont, PA

John A. Fry
President
Franklin & Marshall College
Lancaster, PA

Anthony D. Knerr
Founder/Managing Director
Anthony Knerr & Associates
New York, NY

Lucinda S. Landreth
Former Chief Investment Officer
Assurant, Inc.
Philadelphia, PA

Ann R. Leven
Former Treasurer/Chief Fiscal Officer
National Gallery of Art
Washington, DC

Thomas F. Madison
President and Chief Executive Officer
MLM Partners, Inc.
Minneapolis, MN

Janet L. Yeomans
Vice President and Treasurer
3M Corporation
St. Paul, MN

J. Richard Zecher
Founder
Investor Analytics
Scottsdale, AZ

Affiliated Officers

Michael P. Bishof
Senior Vice President and
Chief Financial Officer
Delaware Investments(R) Family of Funds
Philadelphia, PA

David F. Connor
Vice President, Deputy General Counsel and Secretary
Delaware Investments(R) Family of Funds
Philadelphia, PA

David P. O'Connor
Senior Vice President, General Counsel and Chief Legal Officer
Delaware Investments(R) Family of Funds
Philadelphia, PA

John J. O'Connor
Senior Vice President and Treasurer
Delaware Investments(R) Family of Funds
Philadelphia, PA

Contact Information

Investment Manager
Delaware Management Company,
a Series of Delaware Management Business Trust
Philadelphia, PA

National Distributor
Delaware Distributors, L.P.
Philadelphia, PA

Shareholder Servicing, Dividend Disbursing and Transfer Agent
Delaware Service Company, Inc.
2005 Market Street
Philadelphia, PA 19103-7094

For Shareholders
800 523-1918

For Securities Dealers and Financial Institutions Representatives Only
800 362-7500

Web Site
www.delawareinvestments.com

Delaware Investments is the marketing name for Delaware Management Holdings,
Inc. and its subsidiaries.

- --------------------------------------------------------------------------------

Each Fund files its complete schedule of portfolio holdings with the Securities
and Exchange Commission for the first and third quarters of each fiscal year on
Form N-Q. Each Fund's Forms N-Q, as well as a description of the policies and
procedures that each Fund uses to determine how to vote proxies (if any)
relating to portfolio securities is available without charge (i) upon request,
by calling 800 523-1918; (ii) on the Funds' Web site at
http://www.delawareinvestments.com; and (iii) on the Commission's Web site at
http://www.sec.gov. Each Fund's Forms N-Q may be reviewed and copied at the
Commission's Public Reference Room in Washington, DC; information on the
operation of the Public Reference Room may be obtained by calling 800 SEC-0330.

Information (if any) regarding how each Fund voted proxies relating to portfolio
securities during the most recently disclosed 12-month period ended June 30 is
available without charge (i) through the Funds' Web site at
http://www.delawareinvestments.com; and (ii) on the Commission's Web site at
http://www.sec.gov.

- --------------------------------------------------------------------------------

                                       38



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- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

[DELAWARE INVESTMENTS(R) LOGO]

- --------------------------------------------------------------------------------

Contact Information

Web Site
www.delawareinvestments.com

E-mail
service@delinvest.com

Shareholder Service Center
800 523-1918

Call the Shareholder Service Center Monday to Friday, 8:00 a.m. to 7:00 p.m.
Eastern Time:

o     For fund information, literature, price, yield, and performance figures.

o     For information on existing regular investment accounts and retirement
      plan accounts including wire investments, wire redemptions, telephone
      redemptions, and telephone exchanges.

Delaphone Service
800 362-FUND (800 362-3863)

o     For convenient access to account information or current performance
      information on all Delaware Investments(R) Funds seven days a week, 24
      hours a day, use this Touch-Tone(R) service.

- --------------------------------------------------------------------------------

(344)                                                         Printed in the USA
SA-MNALL[2/06] CGI 4/06                                   SEMI-0603 MINN PO10935


Item 2.  Code of Ethics

         Not applicable.

Item 3.  Audit Committee Financial Expert

         Not applicable.

Item 4.  Principal Accountant Fees and Services

         Not applicable.

Item 5.  Audit Committee of Listed Registrants

         Not applicable.

Item 6.  Schedule of Investments

         Included as part of report to shareholders filed under Item 1 of this
         Form N-CSR.

Item 7.  Disclosure of Proxy Voting Policies and Procedures for Closed-End
         Management Investment Companies

         Not applicable.

Item 8.  Portfolio Managers of Closed-End Management Investment Companies

         Not applicable.

Item 9.  Purchases of Equity Securities by Closed-End Management Investment
         Companies and Affiliated Purchasers

         Not applicable.

Item 10. Submission of Matters to a Vote of Security Holders

         Not applicable.

Item 11. Controls and Procedures

     The registrant's principal executive officer and principal financial
officer have evaluated the registrant's disclosure controls and procedures
within 90 days of the filing of this report and have concluded that they are
effective in providing reasonable assurance that the information required to be
disclosed by the registrant in its reports or statements filed under the
Securities Exchange Act of 1934 is recorded, processed, summarized and reported
within the time periods specified in the rules and forms of the Securities and
Exchange Commission.



     There were no significant changes in the registrant's internal control over
financial reporting that occurred during the second fiscal quarter of the period
covered by the report to stockholders included herein (i.e., the registrant's
second fiscal quarter) that have materially affected, or are reasonably likely
to materially affect, the registrant's internal control over financial
reporting.

Item 12. Exhibits

(a)  (1) Code of Ethics

         Not applicable.

     (2) Certifications of Principal Executive Officer and Principal Financial
     Officer pursuant to Rule 30a-2 under the Investment Company Act of 1940 are
     attached hereto as Exhibit 99.CERT.

     (3) Written solicitations to purchase securities pursuant to Rule 23c-1
     under the Securities Exchange Act of 1934.

         Not applicable.

(b) Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 are
furnished herewith as Exhibit 99.906CERT.


                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf, by the undersigned, thereunto duly authorized.

VOYAGEUR INSURED FUNDS


         Jude T. Driscoll
- --------------------------------
By:      Jude T. Driscoll
Title:   Chief Executive Officer
Date:    May 8, 2006

         Pursuant to the requirements of the Securities Exchange Act of 1934 and
the Investment Company Act of 1940, this report has been signed below by the
following persons on behalf of the registrant and in the capacities and on the
dates indicated.


         Jude T. Driscoll
- --------------------------------
By:      Jude T. Driscoll
Title:   Chief Executive Officer
Date:    May 8, 2006


         Michael P. Bishof
- --------------------------------
By:      Michael P. Bishof
Title:   Chief Financial Officer
Date:    May 8, 2006