Western Asset Municipal Partners Fund (MNP) N-CSRS Certified semi-annual shareholder report (management investment company)

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 811-07362

Western Asset Municipal Partners Fund Inc.

(Exact name of registrant as specified in charter)

620 Eighth Avenue, 49^th Floor, New York, NY 10018

(Address of principal executive offices) (Zip code)

Robert I. Frenkel, Esq.

Legg Mason & Co., LLC

100 First Stamford Place

Stamford, CT 06902

(Name and address of agent for service)

Registrant’s telephone number, including area code: (888) 777-0102

Date of fiscal year end: November 30

Date of reporting period: May 31, 2014

ITEM 1. REPORT TO STOCKHOLDERS.

The Semi-Annual Report to Stockholders is filed herewith.

Semi-Annual Report May 31, 2014

WESTERN ASSET

MUNICIPAL PARTNERS FUND INC. (MNP)

INVESTMENT PRODUCTS: NOT FDIC INSURED • NO BANK GUARANTEE • MAY LOSE VALUE

What’s inside
Letter from the chairman	II
Investment commentary	III
Fund at a glance	1
Spread duration	2
Effective duration	3
Schedule of investments	4
Statement of assets and liabilities	11
Statement of operations	12
Statements of changes in net assets	13
Financial highlights	14
Notes to financial statements	16
Additional shareholder information	24
Dividend reinvestment plan	25

Fund objectives

The Fund’s primary investment objective is to seek a high level of current income which is exempt from regular federal income taxes,* consistent with the preservation of capital. As a secondary investment objective, the Fund intends to enhance portfolio value by purchasing tax-exempt securities that, in the opinion of the investment manager, may appreciate in value relative to other similar obligations in the marketplace.

* Certain investors may be subject to the federal alternative minimum tax (“AMT”), and state and local taxes will apply. Capital gains, if any, are fully taxable. Please consult your personal tax or legal adviser.

Letter from the chairman

Dear Shareholder,

We are pleased to provide the semi-annual report of Western Asset Municipal Partners Fund Inc. for the six-month reporting period ended May 31, 2014. Please read on for Fund performance information and a detailed look at prevailing economic and market conditions during the Fund’s reporting period.

As always, we remain committed to providing you with excellent service and a full spectrum of investment choices. We also remain committed to supplementing the support you receive from your financial advisor. One way we accomplish this is through our website, www.lmcef.com. Here you can gain immediate access to market and investment information, including:

Ÿ Fund prices and performance,

Ÿ Market insights and commentaries from our portfolio managers, and

Ÿ A host of educational resources.

We look forward to helping you meet your financial goals.

Sincerely,

Kenneth D. Fuller

Chairman, President and Chief Executive Officer

June 27, 2014

II Western Asset Municipal Partners Fund Inc.

Investment commentary

Economic review

After generally expanding at a moderate pace since the end of the Great Recession, the U.S. economy experienced a setback toward the end of the six months ended May 31, 2014 (the “reporting period”). Looking back, U.S. gross domestic product (“GDP”)ⁱ growth, as reported by the U.S. Department of Commerce, was 4.1% during the third quarter of 2013, its best reading since the fourth quarter of 2011. The economy then moderated during the fourth quarter of 2013, as GDP growth was 2.6%. Slower growth was due to several factors, including a deceleration in private inventory investment, declining federal government spending and less residential fixed investments. The Commerce Department’s final reading for first quarter 2014 GDP growth, released after the reporting period ended, was -2.9%. This represented the first negative reading for GDP growth since the first quarter of 2011. The contraction was partially attributed to severe winter weather in the U.S., as well as slower growth overseas. In particular, the Commerce Department reported that moderating growth “primarily reflected negative contributions from private inventory investment, exports, state and local government spending, nonresidential fixed investment, and residential fixed investment that were partly offset by a positive contribution from personal consumption expenditures.”

The U.S. job market improved during the reporting period. When the period began, unemployment, as reported by the U.S. Department of Labor, was 7.5%. Unemployment was as low as 6.6% in January 2014, before ticking up to 6.7% in February and holding steady in March 2014. Unemployment then fell to 6.3% in April and was unchanged in May, the lowest level since September 2008. However, falling unemployment during the period was partially due to a decline in the workforce participation rate, which was 62.8% in both April and May 2014, matching the lowest level since 1978. The number of longer-term unemployed remained elevated, as roughly 34.6% of the 9.8 million Americans looking for work in May 2014 had been out of work for more than six months.

Sales of existing-homes fluctuated during the reporting period given changing mortgage rates and weather-related factors. According to the National Association of Realtors (“NAR”), after three consecutive monthly declines, existing-home sales rose 1.3% on a seasonally adjusted basis in April 2014 versus the previous month’s sales. Sales then rose 4.9% in May versus the previous month. The NAR reported that the median existing-home price for all housing types was $213,400 in May 2014, up 5.1% from May 2013. The inventory of homes available for sale in May 2014 was 2.2% higher than the previous month at a 5.6 month supply at the current sales pace and 6.0% higher than in May 2013.

The manufacturing sector continued to expand during the reporting period. Based on revised figures for the Institute for Supply Management’s Purchasing Managers’ Index (“PMI”)ⁱⁱ, manufacturing expanded during all six months of the reporting period (a reading below 50 indicates a contraction, whereas a reading above 50 indicates an expansion). After a reading of 56.5 in December 2013, the PMI fell to 51.3 in January 2014, its weakest reading since May 2013. However, the PMI moved up the next four months and was 55.4 in May 2014. During May, seventeen of the eighteen industries within the PMI expanded.

Western Asset Municipal Partners Fund Inc. III

Investment commentary (cont’d)

Market review

Q. How did the Federal Reserve Board (“Fed”)ⁱⁱⁱ respond to the economic environment?

A. The Fed took a number of actions as it sought to meet its dual mandate of fostering maximum employment and price stability. As has been the case since December 2008, the Fed kept the federal funds rate^iv at a historically low range between zero and 0.25%. At its meeting in December 2012, prior to the beginning of the reporting period, the Fed announced that it would continue purchasing $40 billion per month of agency mortgage-backed securities (“MBS”), as well as initially purchasing $45 billion per month of longer-term Treasuries. At a press conference following its meeting that ended on June 19, 2013, then Fed Chairman Ben Bernanke said “…the Committee currently anticipates that it would be appropriate to moderate the monthly pace of purchases later this year.” In a surprise to many investors, at its meeting that ended on September 18, 2013, the Fed did not taper its asset purchase program. Then, at its meeting that concluded on December 18, 2013, the Fed announced that it would begin reducing its monthly asset purchases, saying “Beginning in January 2014, the Committee will add to its holdings of agency MBS at a pace of $35 billion per month rather than $40 billion per month, and will add to its holdings of longer-term Treasury securities at a pace of $40 billion per month rather than $45 billion per month.”

At each of the Fed’s next three meetings (January, March and May 2014), it announced further $10 billion tapering of its asset purchases. Finally, at its meeting that ended on June 18, 2014, after the reporting period ended, the Fed again cut its monthly asset purchases. Beginning in July, it will buy a total of $35 billion per month ($15 billion per month of agency MBS and $20 billion per month of longer-term Treasuries).

Q. Did Treasury yields trend higher or lower during the six months ended May 31, 2014?

A. Short-term Treasury yields moved higher, whereas long-term Treasury yields declined during the reporting period. When the reporting period began, the yield on the two-year Treasury was 0.28%, equaling its low for the period. It was as high as 0.47% in March and April 2014, before ending the period at 0.37%. The yield on the ten-year Treasury began the period at 2.75% and it fell as low as 2.44% on May 28, 2014. Ten-year Treasuries peaked at 3.04% on December 31, 2013, and ended the period at 2.48%.

Q. What factors impacted the spread sectors (non-Treasuries) during the reporting period?

A. While the market was volatile at times, the spread sectors generated positive results during the reporting period. After generally weakening in December 2013, the spread sectors largely rallied in January and February 2014, as investor demand was solid overall. The majority of spread sectors then modestly declined in March 2014 as interest rates moved higher. However, the reporting period ended on a positive note as the spread sectors generated positive results in April and May 2014.

Q. How did the municipal bond market perform versus the taxable bond market over the reporting period?

A. The municipal bond market outperformed its taxable bond counterpart during the six months ended May 31, 2014. Over that

IV Western Asset Municipal Partners Fund Inc.

period, the Barclays Municipal Bond Index^v and the Barclays U.S. Aggregate Index^vi gained 5.63% and 3.28%, respectively. The municipal bond market outperformed the taxable bond market during all six months covered by the period. That being said, the municipal market was volatile at times given the negative fallout from the city of Detroit’s bankruptcy filing and credit concerns in Puerto Rico.

Performance review

For the six months ended May 31, 2014, Western Asset Municipal Partners Fund Inc. returned 10.54% based on its net asset value (“NAV”)^vii and 15.03% based on its New York Stock Exchange (“NYSE”) market price per share. The Fund’s unmanaged benchmark, the Barclays Municipal Bond Index, returned 5.63% for the same period. The Lipper General & Insured Municipal Debt (Leveraged) Closed-End Funds Category Average^viii returned 12.62% over the same time frame. Please note that Lipper performance returns are based on each fund’s NAV.

Certain investors may be subject to the federal alternative minimum tax, and state and local taxes will apply. Capital gains, if any, are fully taxable. Please consult your personal tax or legal adviser.

During this six-month period, the Fund made distributions to shareholders totaling $0.42 per share. As of May 31, 2014, the Fund estimates that all of the distributions were sourced from net investment income.* The performance table shows the Fund’s six-month total return based on its NAV and market price as of May 31, 2014. Past performance is no guarantee of future results.

Performance Snapshot as of May 31, 2014(unaudited)
Price Per Share	6-Month Total Return**
$16.17 (NAV)		10.54	%†
$14.94 (Market Price)		15.03	%‡

All figures represent past performance and are not a guarantee of future results. Performance figures for periods shorter than one year represent cumulative figures and are not annualized.

** Total returns are based on changes in NAV or market price, respectively. Returns reflect the deduction of all Fund expenses, including management fees, operating expenses, and other Fund expenses. Returns do not reflect the deduction of brokerage commissions or taxes that investors may pay on distributions or the sale of shares.

† Total return assumes the reinvestment of all distributions, including returns of capital, if any, at NAV.

‡ Total return assumes the reinvestment of all distributions, including returns of capital, if any, in additional shares in accordance with the Fund’s Dividend Reinvestment Plan.

Looking for additional information?

The Fund is traded under the symbol “MNP” and its closing market price is available in most newspapers under the NYSE listings. The daily NAV is available on-line under the symbol “XMNPX” on most financial

* This estimate is not for tax purposes. The Fund will issue a Form 1099 with final composition of the distributions for tax purposes after year-end. A return of capital is not taxable and results in a reduction in the tax basis of a shareholder’s investment. For more information about a distribution’s composition, please refer to the Fund’s distribution press release or, if applicable, the Section 19 notice located in the press release section of our website, www.lmcef.com.

Western Asset Municipal Partners Fund Inc. V

Investment commentary (cont’d)

websites. Barron’s and the Wall Street Journal’s Monday edition both carry closed-end fund tables that provide additional information. In addition, the Fund issues a quarterly press release that can be found on most major financial websites as well as www.lmcef.com.

In a continuing effort to provide information concerning the Fund, shareholders may call 1-888-777-0102 (toll free), Monday through Friday from 8:00 a.m. to 5:30 p.m. Eastern Time, for the Fund’s current NAV, market price and other information.

Thank you for your investment in Western Asset Municipal Partners Fund Inc. As always, we appreciate that you have chosen us to manage your assets and we remain focused on achieving the Fund’s investment goals.

Sincerely,

Kenneth D. Fuller

Chairman, President and

Chief Executive Officer

June 27, 2014

RISKS: An investment in the Fund is subject to risk, including the possible loss of the principal amount that you invest in the Fund. Diversification does not assure against market loss. As interest rates rise, bond prices fall, reducing the value of the Fund’s fixed-income securities. Lower-rated, higher-yielding bonds are subject to greater credit risk than higher rated obligations. Municipal securities purchased by the Fund may be adversely affected by changes in the financial condition of municipal issuers and insurers, regulatory and political developments, uncertainties and public perceptions, and other factors. The Fund may use derivatives, such as options and futures, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Fund performance.

All investments are subject to risk including the possible loss of principal. Past performance is no guarantee of future results. All index performance reflects no deduction for fees, expenses or taxes. Please note that an investor cannot invest directly in an index.

The information provided is not intended to be a forecast of future events, a guarantee of future results or investment advice. Views expressed may differ from those of the firm as a whole.

VI Western Asset Municipal Partners Fund Inc.

ⁱ  Gross domestic product (“GDP”) is the market value of all final goods and services produced within a country in a given period of time.

ⁱⁱ  The Institute for Supply Management’s PMI is based on a survey of purchasing executives who buy the raw materials for manufacturing at more than 350 companies. It offers an early reading on the health of the manufacturing sector.

ⁱⁱⁱ  The Federal Reserve Board (“Fed”) is responsible for the formulation of policies designed to promote economic growth, full employment, stable prices and a sustainable pattern of international trade and payments.

^iv  The federal funds rate is the rate charged by one depository institution on an overnight sale of immediately available funds (balances at the Federal Reserve) to another depository institution; the rate may vary from depository institution to depository institution and from day to day.

^v  The Barclays Municipal Bond Index is a market value weighted index of investment grade municipal bonds with maturities of one year or more.

^vi  The Barclays U.S. Aggregate Index is a broad-based bond index comprised of government, corporate, mortgage- and asset-backed issues, rated investment grade or higher, and having at least one year to maturity.

^vii  Net asset value (“NAV”) is calculated by subtracting total liabilities and outstanding preferred stock (if any) from the closing value of all securities held by the Fund (plus all other assets) and dividing the result (total net assets) by the total number of the common shares outstanding. The NAV fluctuates with changes in the market prices of securities in which the Fund has invested. However, the price at which an investor may buy or sell shares of the Fund is the Fund’s market price as determined by supply of and demand for the Fund’s shares.

^viii  Lipper, Inc., a wholly-owned subsidiary of Reuters, provides independent insight on global collective investments. Returns are based on the six-month period ended May 31, 2014, including the reinvestment of all distributions, including returns of capital, if any, calculated among the 77 funds in the Fund’s Lipper category.

Western Asset Municipal Partners Fund Inc. VII

Fund at a glance^†(unaudited)

Investment breakdown (%) as a percent of total investments

† The bar graph above represents the composition of the Fund’s investments as of May 31, 2014 and November 30, 2013 and does not include derivatives such as futures contracts. The Fund is actively managed. As a result, the composition of the Fund’s investments is subject to change at any time.

‡ Represents less than 0.1%.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 1

Spread duration (unaudited)

Economic exposure — May 31, 2014

Total Spread Duration
MNP	— 7.07 years
Benchmark	— 6.31 years

Spread duration measures the sensitivity to changes in spreads. The spread over Treasuries is the annual risk-premium demanded by investors to hold non-Treasury securities. Spread duration is quantified as the % change in price resulting from a 100 basis points change in spreads. For a security with positive spread duration, an increase in spreads would result in a price decline and a decline in spreads would result in a price increase. This chart highlights the market sector exposure of the Fund’s sectors relative to the selected benchmark sectors as of the end of the reporting period.

Benchmark	— Barclays Municipal Bond Index
MNP	— Western Asset Municipal Partners Fund Inc.

2 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

Effective duration (unaudited)

Interest rate exposure — May 31, 2014

Total Effective Duration
MNP	— 6.57 years
Benchmark	— 7.16 years

Effective duration measures the sensitivity to changes in relevant interest rates. Effective duration is quantified as the % change in price resulting from a 100 basis points change in interest rates. For a security with positive effective duration, an increase in interest rates would result in a price decline and a decline in interest rates would result in a price increase. This chart highlights the interest rate exposure of the Fund’s sectors relative to the selected benchmark sectors as of the end of the reporting period.

Benchmark	— Barclays Municipal Bond Index
MNP	— Western Asset Municipal Partners Fund Inc.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 3

Schedule of investments (unaudited)

May 31, 2014

Western Asset Municipal Partners Fund Inc.

Security	Rate			Maturity Date		Face Amount		Value
Municipal Bonds — 152.0%
Alabama — 0.5%
Jefferson County, AL, Sewer Revenue Warrants		6.000	%		10/1/42	$	740,000	$	813,393
Alaska — 1.6%
Valdez, AK, Marine Terminal Revenue, BP Pipelines Inc. Project		5.000	%		1/1/21		2,150,000		2,531,002
Arizona — 2.0%
Glendale, AZ, Transportation Excise Tax Revenue, NATL		5.000	%		7/1/28		2,855,000		3,127,967
California — 25.6%
Bay Area Toll Authority, CA, Toll Bridge Revenue, San Francisco Bay Area		1.150	%		4/1/24		3,000,000		3,014,640	(a)(b)
California Health Facilities Financing Authority Revenue:
Catholic Healthcare West		5.250	%		3/1/24		2,500,000		2,638,325
Catholic Healthcare West		5.625	%		7/1/32		5,000,000		5,186,850
California State PCFA, Water Furnishing Revenue		5.000	%		11/21/45		2,500,000		2,537,600	(c)
California State PCFA, Water Furnishing Revenue		5.000	%		11/21/45		1,000,000		1,019,260	(c)(d)
California State, GO		0.806	%		12/1/17		1,000,000		1,007,920	(a)(b)
California State, GO, Various Purpose		5.000	%		4/1/43		4,000,000		4,388,280
California Statewide CDA Revenue, Insured Health Facility L.A., Jewish Home, CA, Mortgage Insurance		5.000	%		11/15/28		1,500,000		1,582,815
Los Angeles County, CA, MTA Revenue, Union Station Project		0.340	%		7/1/27		300,000		278,071	(a)
Los Angeles County, CA, Public Works Financing Authority, Lease Revenue, Multiple Capital Projects II		5.000	%		8/1/30		2,500,000		2,815,025
Los Angeles, CA, Department of Water & Power Revenue, Power Systems, Subordinated, AGM		5.000	%		7/1/35		2,500,000		2,598,950
Lower Tule River, CA, Irrigation District Revenue, COP		5.000	%		8/1/40		1,000,000		1,046,270
M-S-R Energy Authority, CA, Gas Revenue		7.000	%		11/1/34		2,490,000		3,384,732
M-S-R Energy Authority, CA, Gas Revenue		6.500	%		11/1/39		3,000,000		3,985,770
Riverside County, CA, Transportation Commission Sales Tax Revenue, Limited Tax		5.250	%		6/1/39		250,000		285,780
Riverside County, CA, Transportation Commission Toll Revenue:
Senior Lien		5.750	%		6/1/44		100,000		110,640
Senior Lien		5.750	%		6/1/48		200,000		220,496
Turlock, CA, Irrigation District Revenue		5.000	%		1/1/35		2,500,000		2,648,075
Turlock, CA, Public Financing Authority, Tax Allocation Revenue, AGM		5.000	%		9/1/30		1,500,000		1,517,955
Total California									40,267,454
Colorado — 8.0%
Colorado Health Facilities Authority Revenue:
Poudre Valley Health Care		5.000	%		3/1/25		2,850,000		2,894,317
Sisters of Charity Leavenworth Health System Inc.		5.250	%		1/1/25		3,500,000		3,953,180

See Notes to Financial Statements.

4 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

Western Asset Municipal Partners Fund Inc.

Security	Rate			Maturity Date		Face Amount		Value
Colorado — continued
Public Authority for Colorado Energy, Natural Gas Purchase Revenue		5.750	%		11/15/18	$	340,000	$	382,721
Public Authority for Colorado Energy, Natural Gas Purchase Revenue		6.500	%		11/15/38		4,000,000		5,271,920
Total Colorado									12,502,138
Florida — 3.4%
Miami-Dade County, FL, GO, Seaport		5.000	%		10/1/23		2,315,000		2,641,855
Orlando & Orange County, FL, Expressway Authority Revenue		5.000	%		7/1/30		2,000,000		2,190,340
Seminole Tribe Florida Special Obligation Revenue		5.250	%		10/1/27		500,000		523,850	(c)
Total Florida									5,356,045
Illinois — 12.5%
Chicago, IL, Midway Airport Revenue:
NATL		5.500	%		1/1/29		2,000,000		2,006,960
NATL		5.625	%		1/1/29		3,750,000		3,763,388	(d)
Chicago, IL, Park District, GO, Refunding, FGIC		5.000	%		1/1/29		5,000,000		5,134,700
Chicago, IL, Public Building Commission, Building Revenue, Chicago School Reform, FGIC		5.250	%		12/1/18		1,000,000		1,140,800
Illinois Health Facilities Authority Revenue, South Suburban Hospital Project		7.000	%		2/15/18		315,000		349,130	(e)
Illinois Municipal Electric Agency Power Supply, FGIC		5.250	%		2/1/28		4,145,000		4,509,967
Illinois State, GO		5.000	%		5/1/39		1,000,000		1,037,960
Illinois State, GO, First Series, AGM		5.500	%		5/1/16		1,500,000		1,636,845
Total Illinois									19,579,750
Indiana — 2.1%
Indiana Finance Authority Midwestern Disaster Relief Revenue, Ohio Valley Electric Corp. Project		5.000	%		6/1/39		1,000,000		1,013,800
Indianapolis, IN, Local Public Improvement Bond Bank		5.000	%		6/1/27		2,000,000		2,251,940
Total Indiana									3,265,740
Iowa — 1.9%
Iowa State Finance Authority Midwestern Disaster Area Revenue:
Iowa Fertilizer Co. Project		5.000	%		12/1/19		1,110,000		1,157,008
Iowa Fertilizer Co. Project		5.250	%		12/1/25		1,790,000		1,864,679
Total Iowa									3,021,687
Maryland — 2.3%
Maryland State EDC, EDR, Transportation Facilities Project		5.750	%		6/1/35		1,000,000		1,046,360
Maryland State Health & Higher EFA Revenue Bonds, Suburban Hospital		5.500	%		7/1/16		2,500,000		2,509,825
Total Maryland									3,556,185

See Notes to Financial Statements.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 5

Schedule of investments (unaudited) (cont’d)

May 31, 2014

Western Asset Municipal Partners Fund Inc.

Security	Rate			Maturity Date		Face Amount		Value
Massachusetts — 0.9%
Massachusetts State Water Pollution Abatement Trust Revenue, MWRA Program, Unrefunded Balance		5.750	%		8/1/29	$	355,000	$	356,253
Massachusetts State Water Resources Authority, NATL		5.000	%		8/1/34		1,000,000		1,074,800
Total Massachusetts									1,431,053
Michigan — 5.5%
Detroit, MI, GO, District State Aid		5.250	%		11/1/24		3,500,000		3,867,815
Detroit, MI, Water & Sewerage Department, Disposal System Revenue, Senior Lien		5.250	%		7/1/39		405,000		399,978
Detroit, MI, Water Supply System Revenue, Senior Lien, NATL		5.000	%		7/1/34		500,000		499,970
Michigan State Building Authority Revenue, Facilities Program		5.250	%		10/15/47		250,000		275,220
Michigan State Hospital Finance Authority Revenue, McLaren Health Care Corp.		5.750	%		5/15/38		2,000,000		2,230,080	(f)
Wayne County, MI, Airport Authority Revenue, Detroit Metropolitan Airport		5.000	%		12/1/18		1,170,000		1,326,523	(d)
Total Michigan									8,599,586
Missouri — 1.3%
Boone County, MO, Hospital Revenue, Boone Hospital Center		5.375	%		8/1/38		2,000,000		2,100,360
Nevada — 1.4%
Clark County, NV, GO, AMBAC		5.000	%		11/1/21		2,000,000		2,211,100
New Jersey — 9.6%
New Jersey State EDA Revenue		5.000	%		6/15/29		500,000		541,185
New Jersey State EDA Revenue:
Continental Airlines Project		5.250	%		9/15/29		2,000,000		2,064,980	(d)
Private Activity-Goethals Bridge Replacement Project		5.375	%		1/1/43		1,000,000		1,067,420	(d)
School Facilities Construction		1.650	%		3/1/28		2,500,000		2,460,075	(a)
New Jersey State Transportation Trust Fund Authority, Revenue, Transportation Program		5.000	%		6/15/38		6,000,000		6,425,580
New Jersey State Turnpike Authority Revenue		0.730	%		1/1/18		2,500,000		2,502,975	(a)(b)
Total New Jersey									15,062,215
New York — 27.0%
Brooklyn Arena, NY, Local Development Corp., Barclays Center Project		6.250	%		7/15/40		1,000,000		1,104,150
Liberty, NY, Development Corporation Revenue, Goldman Sachs Headquarters		5.250	%		10/1/35		3,045,000		3,558,570
MTA, NY, Revenue		5.000	%		11/15/25		1,000,000		1,152,030
MTA, NY, Revenue		5.250	%		11/15/40		1,000,000		1,098,390
Nassau County, NY, Industrial Development Agency Revenue, Continuing Care Retirement, Amsterdam at Harborside		6.700	%		1/1/43		360,000		186,728	(g)
New York City, NY, Municipal Water Finance Authority, Water & Sewer System Revenue, Second General Resolution Fiscal 2011		5.000	%		6/15/31		4,850,000		5,461,197	(f)

See Notes to Financial Statements.

6 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

Western Asset Municipal Partners Fund Inc.

Security	Rate			Maturity Date		Face Amount		Value
New York — continued
New York Liberty Development Corp., Liberty Revenue:
4 World Trade Center LLC Project		5.750	%		11/15/51	$	2,000,000	$	2,233,000
Second Priority, Bank of America Tower		5.125	%		1/15/44		2,500,000		2,663,350
New York State Dormitory Authority Revenue:
Court Facilities Lease, NYC Issue, Non-State Supported Debt, AMBAC		5.500	%		5/15/30		3,365,000		4,234,045
Non-State Supported Debt, Columbia University		5.000	%		7/1/38		2,000,000		2,228,660
New York State Energy Research & Development Authority Revenue, Niagara Mohawk Power Corp.		0.378	%		7/1/29		2,520,000		2,318,307	(a)
New York State Thruway Authority, Second General Highway & Bridge Trust Fund, AMBAC		5.000	%		4/1/26		4,700,000		5,169,718
New York State Urban Development Corp. Revenue, State Personal Income Tax		5.000	%		3/15/26		5,000,000		5,535,400
Port Authority of New York & New Jersey		5.000	%		1/15/41		5,000,000		5,454,650
Total New York									42,398,195
North Carolina — 4.3%
Charlotte-Mecklenburg Hospital Authority, NC, Health Care System Revenue, Carolinas Healthcare System		5.000	%		1/15/31		5,000,000		5,553,750
North Carolina Medical Care Commission Health Care Facilities Revenue, Novant Health Obligation Group		5.000	%		11/1/39		1,200,000		1,247,100
Total North Carolina									6,800,850
Ohio — 3.6%
Northeast, OH, Regional Sewer District Revenue, Waste Water Revenue Improvement		5.000	%		11/15/43		4,040,000		4,495,429
Ohio State Air Quality Development Authority Revenue, FirstEnergy Generation Corp.		5.700	%		8/1/20		1,000,000		1,154,390
Total Ohio									5,649,819
Oklahoma — 1.4%
Grand River Dam Authority, OK, Revenue		5.250	%		6/1/40		2,000,000		2,213,880
Oregon — 0.8%
Multnomah County, OR, Hospital Facilities Authority Revenue, Providence Health Systems		5.250	%		10/1/18		1,250,000		1,270,700	(h)
Pennsylvania — 6.0%
Central Bradford, PA, Progress Authority Revenue, Guthrie Healthcare Systems		5.000	%		12/1/26		5,130,000		5,795,464
Pennsylvania Economic Development Financing Authority, Sewer Sludge Disposal Revenue, Philadelphia Biosolids Facility		6.250	%		1/1/32		500,000		536,080
Philadelphia, PA, Gas Works Revenue, 7th General Ordinance, AMBAC		5.000	%		10/1/17		2,685,000		3,047,609
Total Pennsylvania									9,379,153

See Notes to Financial Statements.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 7

Schedule of investments (unaudited) (cont’d)

May 31, 2014

Western Asset Municipal Partners Fund Inc.

Security	Rate			Maturity Date		Face Amount		Value
Puerto Rico — 1.1%
Puerto Rico Commonwealth, GO, Public Improvement		5.000	%		7/1/41	$	230,000	$	158,507
Puerto Rico Sales Tax Financing Corp., Sales Tax Revenue		5.250	%		8/1/40		1,850,000		1,654,436
Total Puerto Rico									1,812,943
Tennessee — 5.4%
Clarksville, TN, Natural Gas Acquisition Corp., Gas Revenue		5.000	%		12/15/20		2,030,000		2,279,385
Tennessee Energy Acquisition Corp., Gas Revenue		5.000	%		2/1/20		3,555,000		4,007,125
Tennessee Energy Acquisition Corp., Gas Revenue		5.000	%		2/1/21		2,000,000		2,260,320
Total Tennessee									8,546,830
Texas — 13.8%
Austin, TX, Water & Wastewater System Revenue		5.000	%		11/15/26		2,500,000		2,911,900
Austin, TX, Water & Wastewater System Revenue		5.125	%		11/15/28		2,210,000		2,569,678
Beaumont, TX, ISD, GO, School Building, PSF		5.000	%		2/15/33		1,100,000		1,200,760
Grand Parkway Transportation Corp., TX, System Toll Revenue, Convertible CAB, Step Bond		0.000	%		10/1/36		2,000,000		1,397,980	(a)
Harris County, TX, Health Facilities Development Corp., Hospital Revenue, Memorial Hermann Healthcare Systems		5.250	%		12/1/18		2,960,000		3,033,882	(h)
Harris County, TX, Metropolitan Transit Authority Sales & Use Tax		5.000	%		11/1/36		3,125,000		3,469,375
Kemp, TX, ISD, GO, School Building		5.250	%		2/15/33		3,450,000		3,781,993
Mesquite, TX, ISD, GO:
PSFG		0.000	%		8/15/27		505,000		272,559	(h)
PSFG		0.000	%		8/15/27		495,000		264,592
North Texas Tollway Authority Revenue		5.750	%		1/1/40		2,500,000		2,787,950
Total Texas									21,690,669
Washington — 5.2%
Port of Seattle, WA, Revenue		5.000	%		8/1/25		2,395,000		2,773,051
Port of Seattle, WA, Revenue, Refunding, Intermediate Lien, NATL		5.000	%		3/1/30		2,000,000		2,055,460
Washington State Health Care Facilities Authority Revenue, PeaceHealth		5.000	%		11/1/28		3,000,000		3,316,350
Total Washington									8,144,861
Wisconsin — 4.8%
Public Finance Authority, WI, Airport Facilities Revenue, Transportation Infrastructure Properties LLC		5.000	%		7/1/42		4,000,000		4,050,200	(d)
Wisconsin State HEFA Revenue, SSM Health Care Corp.		5.000	%		6/1/25		3,110,000		3,540,144
Total Wisconsin									7,590,344
Total Investments before Short-Term Investments (Cost — $220,626,162)									238,923,919

See Notes to Financial Statements.

8 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

Western Asset Municipal Partners Fund Inc.

Security	Rate			Maturity Date		Face Amount		Value
Short-Term Investments — 0.1%
New York — 0.1%
New York City, NY, TFA, Future Tax Secured, SPA-Citibank N.A. (Cost — $100,000)		0.080	%		8/1/31	$	100,000	$	100,000	(i)(j)
Total Investments — 152.1% (Cost — $220,726,162#)									239,023,919
Auction Rate Cumulative Preferred Stock, at Liquidation Value — (54.1)%									(85,000,000	)
Other Assets in Excess of Liabilities — 2.0%									3,109,570
Total Net Assets — 100.0%								$	157,133,489

^(a)  Variable rate security. Interest rate disclosed is as of the most recent information available.

^(b)  Maturity date shown represents the mandatory tender date.

^(c)  Security is exempt from registration under Rule 144A of the Securities Act of 1933. This security may be resold in transactions that are exempt from registration, normally to qualified institutional buyers. This security has been deemed liquid pursuant to guidelines approved by the Board of Directors, unless otherwise noted.

^(d)  Income from this issue is considered a preference item for purposes of calculating the alternative minimum tax (“AMT”).

^(e)  Bonds are escrowed to maturity by government securities and/or U.S. government agency securities and are considered by the manager to be triple-A rated even if issuer has not applied for new ratings.

^(f)  All or a portion of this security is held at the broker as collateral for open futures contracts.

^(g)  Illiquid security.

^(h)  Pre-Refunded bonds are escrowed with U.S. government obligations and/or U.S. government agency securities and are considered by the manager to be triple-A rated even if issuer has not applied for new ratings.

⁽ⁱ⁾  Variable rate demand obligations have a demand feature under which the Fund can tender them back to the issuer or liquidity provider on no more than 7 days notice.

^(j)  Maturity date shown is the final maturity date. The security may be sold back to the issuer before final maturity.

# Aggregate cost for federal income tax purposes is substantially the same.

See Notes to Financial Statements.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 9

Schedule of investments (unaudited) (cont’d)

May 31, 2014

Western Asset Municipal Partners Fund Inc.

Abbreviations used in this schedule:
AGM	— Assured Guaranty Municipal Corporation — Insured Bonds
AMBAC	— American Municipal Bond Assurance Corporation — Insured Bonds
CAB	— Capital Appreciation Bonds
CDA	— Communities Development Authority
COP	— Certificates of Participation
EDA	— Economic Development Authority
EDC	— Economic Development Corporation
EDR	— Economic Development Revenue
EFA	— Educational Facilities Authority
FGIC	— Financial Guaranty Insurance Company — Insured Bonds
GO	— General Obligation
HEFA	— Health & Educational Facilities Authority
ISD	— Independent School District
MTA	— Metropolitan Transportation Authority
MWRA	— Massachusetts Water Resources Authority
NATL	— National Public Finance Guarantee Corporation — Insured Bonds
PCFA	— Pollution Control Financing Authority
PSF	— Permanent School Fund
PSFG	— Permanent School Fund Guaranty
SPA	— Standby Bond Purchase Agreement — Insured Bonds
TFA	— Transitional Finance Authority

Ratings table*
Standard & Poor’s/Moody’s/Fitch**
AAA/Aaa	5.6	%
AA/Aa	47.1
A	36.7
BBB/Baa	7.9
BB/Ba	1.5
B/B	0.9
A-1/VMIG 1	0.0	‡
NR	0.3
	100.0	%

* As a percentage of total investments.

** The ratings shown are based on each portfolio security’s rating as determined by Standard & Poor’s, Moody’s or Fitch, each a Nationally Recognized Statistical Rating Organization (“NRSRO”). These ratings are the opinions of the NRSRO and are not measures of quality or guarantees of performance. Securities may be rated by other NRSROs, and these ratings may be higher or lower. In the event that a security is rated by multiple NRSROs and receives different ratings, the Fund will treat the security as being rated in the highest rating category received from a NRSRO.

‡ Represents less than 0.1%.

See Notes to Financial Statements.

10 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

Statement of assets and liabilities (unaudited)

May 31, 2014

Assets:
Investments, at value (Cost — $220,726,162)	$	239,023,919
Cash		35,633
Interest receivable		3,189,036
Receivable from broker — variation margin on open futures contracts		15,094
Prepaid expenses		28,406
Total Assets		242,292,088
Liabilities:
Investment management fee payable		112,504
Distributions payable to Auction Rate Cumulative Preferred Stockholders		3,745
Accrued expenses		42,350
Total Liabilities		158,599
Auction Rate Cumulative Preferred Stock (1,700 shares authorized and issued at $50,000 per share) (Note 5)		85,000,000
Total Net Assets	$	157,133,489
Net Assets:
Par value ($0.001 par value; 9,719,063 shares issued and outstanding; 100,000,000 shares authorized)	$	9,719
Paid-in capital in excess of par value		135,567,168
Undistributed net investment income		4,825,740
Accumulated net realized loss on investments and futures contracts		(1,465,405)
Net unrealized appreciation on investments and futures contracts		18,196,267
Total Net Assets	$	157,133,489
Shares Outstanding		9,719,063
Net Asset Value		$16.17

See Notes to Financial Statements.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 11

Statement of operations (unaudited)

For the Six Months Ended May 31, 2014

Investment Income:
Interest	$	5,135,678
Expenses:
Investment management fee (Note 2)		645,169
Auction Participation Fees (Note 5)		81,788
Audit and tax		56,889
Legal fees		19,877
Transfer agent fees		19,201
Shareholder reports		14,394
Stock exchange listing fees		14,147
Directors’ fees		13,208
Rating agency fees		7,478
Fund accounting fees		7,265
Custody fees		6,803
Auction agent fees		5,385
Insurance		2,002
Miscellaneous expenses		5,420
Total Expenses		899,026
Net Investment Income		4,236,652
Realized and Unrealized Gain (Loss) on Investments and Futures Contracts (Notes 1, 3 and 4):
Net Realized Loss From:
Investment transactions		(289,184)
Futures contracts		(527,124)
Net Realized Loss		(816,308)
Change in Net Unrealized Appreciation (Depreciation) From:
Investments		11,903,507
Futures contracts		(121,690)
Change in Net Unrealized Appreciation (Depreciation)		11,781,817
Net Gain on Investments and Futures Contracts		10,965,509
Distributions Paid to Auction Rate Cumulative Preferred Stockholders from Net Investment Income (Notes 1 and 5)		(46,706)
Increase in Net Assets from Operations	$	15,155,455

See Notes to Financial Statements.

12 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

Statements of changes in net assets

For the Six Months Ended May 31, 2014 (unaudited) and the Year Ended November 30, 2013	2014		2013
Operations:
Net investment income	$	4,236,652	$	8,426,437
Net realized loss		(816,308)		(772,995)
Change in net unrealized appreciation (depreciation)		11,781,817		(20,601,326)
Distributions paid to Auction Rate Cumulative Preferred Stockholders From:
Net investment income		(46,706)		(132,095)
Net realized gains		—		(19,788)
Increase (Decrease) in Net Assets From Operations		15,155,455		(13,099,767)
Distributions to Shareholders From (Note 1):
Net investment income		(4,082,006)		(8,164,013)
Net realized gains		—		(789,188)
Decrease in Net Assets From Distributions to Common Shareholders		(4,082,006)		(8,953,201)
Increase (Decrease) in Net Assets		11,073,449		(22,052,968)
Net Assets:
Beginning of period		146,060,040		168,113,008
End of period*	$	157,133,489	$	146,060,040
*Includesundistributed net investment income of:		$4,825,740		$4,717,800

See Notes to Financial Statements.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 13

Financial highlights

For a share of capital stock outstanding throughout each year ended November 30, unless otherwise noted:
	20141,2			20131			20121			20111			20101			20091,3			20081,4
Net asset value, beginning of period		$15.03			$17.30			$15.24			$14.49			$14.41			$11.75			$14.55
Income (loss) from operations:
Net investment income		0.44			0.87			0.91			0.91			0.95			0.90			0.93
Net realized and unrealized gain (loss)		1.12			(2.20)			2.02			0.70			(0.03)			2.45			(2.81)
Distributions paid to auction rate cumulative preferred stockholders from:
Net investment income		(0.00)	5		(0.02)			(0.02)			(0.03)			(0.04)			(0.05)			(0.29)
Net realized gains		—			(0.00)	5		(0.00)	5		—			—			—			(0.02)
Total income (loss) from operations		1.56			(1.35)			2.91			1.58			0.88			3.30			(2.19)
Distributions paid to common stock shareholders from:
Net investment income		(0.42)	6		(0.84)			(0.84)			(0.83)			(0.80)			(0.64)			(0.60)
Net realized gains		—			(0.08)			(0.01)			—			—			—			(0.04)
Total distributions		(0.42)			(0.92)			(0.85)			(0.83)			(0.80)			(0.64)			(0.64)
Increase in net asset value due to shares repurchased in tender offer		—			—			—			—			—			—			0.03
Net asset value, end of period		$16.17			$15.03			$17.30			$15.24			$14.49			$14.41			$11.75
Market price, end of period		$14.94			$13.37			$18.20			$14.83			$13.87			$12.86			$9.69
Total return, based on NAV7,8		10.54	%		(7.97)	%		19.54	%		11.42	%		6.16	%		28.54	%		(15.35)	%
Total return, based on Market Price9		15.03	%		(22.01)	%		29.08	%		13.54	%		14.19	%		39.80	%		(22.67)	%
Net assets, end of period (000s)		$157,133			$146,060			$168,113			$148,080			$140,801			$140,082			$114,186
Ratios to average net assets based on common shares outstanding:10
Gross expenses		1.20	%11		1.17	%		1.14	%		1.25	%		1.24	%		1.37	%11		1.48	%
Net expenses12		1.20	11		1.17			1.14			1.25			1.24			1.37	11		1.48
Net investment income		5.65	11		5.44			5.55			6.26			6.40			7.23	11		6.67
Portfolio turnover rate		5	%		17	%		17	%		34	%		32	%		18	%		46	%
Auction Rate Cumulative Preferred Stock:
Total Amount Outstanding (000s)		$85,000			$85,000			$85,000			$85,000			$85,000			$85,000			$85,000
Asset Coverage Per Share		142,431			135,918			148,890			137,106			132,824			132,401			117,169
Involuntary Liquidating Preference Per Share13		50,000			50,000			50,000			50,000			50,000			50,000			50,000

See Notes to Financial Statements.

14 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

¹  Per share amounts have been calculated using the average shares method.

²  For the six months ended May 31, 2014 (unaudited).

³  For the period January 1, 2009 through November 30, 2009.

⁴  For the year ended December 31.

⁵  Amount represents less than $0.01 per share.

⁶  The actual source of the Fund’s current fiscal year distributions may be from net investment income, return of capital or a combination of both. Shareholders will be informed of the tax characteristics of the distributions after the close of the fiscal year.

⁷  Performance figures may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower. Past performance is no guarantee of future results. Total returns for periods of less than one year are not annualized.

⁸  The total return calculation assumes that distributions are reinvested at NAV. Past performance is no guarantee of future results. Total returns for periods of less than one year are not annualized.

⁹  The total return calculation assumes that distributions are reinvested in accordance with the Fund’s dividend reinvestment plan. Past performance is no guarantee of future results. Total returns for periods of less than one year are not annualized.

¹⁰  Calculated on the basis of average net assets of common stock shareholders. Ratios do not reflect the effect of dividend payments to preferred stockholders.

¹¹  Annualized.

¹²  The impact of compensating balance arrangements, if any, was less than 0.01%.

¹³  Excludes accumulated and unpaid distributions.

See Notes to Financial Statements.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 15

Notes to financial statements (unaudited)

1. Organization and significant accounting policies

Western Asset Municipal Partners Fund Inc. (the “Fund”) was incorporated in Maryland on November 24, 1992 and is registered as a diversified, closed-end management investment company under the Investment Company Act of 1940, as amended (the “1940 Act”). The Board of Directors authorized 100 million shares of $0.001 par value common stock. The Fund’s primary investment objective is to seek a high level of current income which is exempt from federal income taxes, consistent with the preservation of capital. As a secondary investment objective, the Fund intends to enhance portfolio value by purchasing tax exempt securities that, in the opinion of the investment manager, may appreciate in value relative to other similar obligations in the marketplace.

The following are significant accounting policies consistently followed by the Fund and are in conformity with U.S. generally accepted accounting principles (“GAAP”). Estimates and assumptions are required to be made regarding assets, liabilities and changes in net assets resulting from operations when financial statements are prepared. Changes in the economic environment, financial markets and any other parameters used in determining these estimates could cause actual results to differ. Subsequent events have been evaluated through the date the financial statements were issued.

(a) Investment valuation. The valuations for fixed income securities (which may include, but are not limited to, corporate, government, municipal, mortgage-backed, collateralized mortgage obligations and asset-backed securities) and certain derivative instruments are typically the prices supplied by independent third party pricing services, which may use market prices or broker/dealer quotations or a variety of valuation techniques and methodologies. The independent third party pricing services use inputs that are observable such as issuer details, interest rates, yield curves, prepayment speeds, credit risks/spreads, default rates and quoted prices for similar securities. Short-term fixed income securities that will mature in 60 days or less are valued at amortized cost, unless it is determined that using this method would not reflect an investment’s fair value. Futures contracts are valued daily at the settlement price established by the board of trade or exchange on which they are traded. If independent third party pricing services are unable to supply prices for a portfolio investment, or if the prices supplied are deemed by the manager to be unreliable, the market price may be determined by the manager using quotations from one or more broker/dealers or at the transaction price if the security has recently been purchased and no value has yet been obtained from a pricing service or pricing broker. When reliable prices are not readily available, such as when the value of a security has been significantly affected by events after the close of the exchange or market on which the security is principally traded, but before the Fund calculates its net asset value, the Fund values these securities as determined in accordance with procedures approved by the Fund’s Board of Directors.

The Board of Directors is responsible for the valuation process and has delegated the supervision of the daily valuation process to the Legg Mason North American Fund Valuation Committee (the “Valuation Committee”). The Valuation Committee, pursuant to the policies adopted by the Board of Directors, is responsible for making fair value determinations,

16 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

evaluating the effectiveness of the Fund’s pricing policies, and reporting to the Board of Directors. When determining the reliability of third party pricing information for investments owned by the Fund, the Valuation Committee, among other things, conducts due diligence reviews of pricing vendors, monitors the daily change in prices and reviews transactions among market participants.

The Valuation Committee will consider pricing methodologies it deems relevant and appropriate when making fair value determinations. Examples of possible methodologies include, but are not limited to, multiple of earnings; discount from market of a similar freely traded security; discounted cash-flow analysis; book value or a multiple thereof; risk premium/yield analysis; yield to maturity; and/or fundamental investment analysis. The Valuation Committee will also consider factors it deems relevant and appropriate in light of the facts and circumstances. Examples of possible factors include, but are not limited to, the type of security; the issuer’s financial statements; the purchase price of the security; the discount from market value of unrestricted securities of the same class at the time of purchase; analysts’ research and observations from financial institutions; information regarding any transactions or offers with respect to the security; the existence of merger proposals or tender offers affecting the security; the price and extent of public trading in similar securities of the issuer or comparable companies; and the existence of a shelf registration for restricted securities.

For each portfolio security that has been fair valued pursuant to the policies adopted by the Board of Directors, the fair value price is compared against the last available and next available market quotations. The Valuation Committee reviews the results of such back testing monthly and fair valuation occurrences are reported to the Board of Directors quarterly.

The Fund uses valuation techniques to measure fair value that are consistent with the market approach and/or income approach, depending on the type of security and the particular circumstance. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable securities. The income approach uses valuation techniques to discount estimated future cash flows to present value.

GAAP establishes a disclosure hierarchy that categorizes the inputs to valuation techniques used to value assets and liabilities at measurement date. These inputs are summarized in the three broad levels listed below:

Ÿ Level 1 — quoted prices in active markets for identical investments

Ÿ Level 2 — other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

Ÿ Level 3 — significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments)

The inputs or methodologies used to value securities are not necessarily an indication of the risk associated with investing in those securities.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 17

Notes to financial statements (unaudited) (cont’d)

The following is a summary of the inputs used in valuing the Fund’s assets and liabilities carried at fair value:

ASSETS
Description	Quoted Prices (Level 1)		Other Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Municipal bonds†		—	$	238,923,919		—	$	238,923,919
Short-term investments†		—		100,000		—		100,000
Total investments		—	$	239,023,919		—	$	239,023,919
LIABILITIES
Description	Quoted Prices (Level 1)		Other Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Other financial instruments:
Futures contracts	$	101,490		—		—	$	101,490

† See Schedule of Investments for additional detailed categorizations.

(b) Futures contracts. The Fund uses futures contracts generally to gain exposure to, or hedge against, changes in interest rates or gain exposure to, or hedge against, changes in certain asset classes. A futures contract represents a commitment for the future purchase or sale of an asset at a specified price on a specified date.

Upon entering into a futures contract, the Fund is required to deposit cash or cash equivalents with a broker in an amount equal to a certain percentage of the contract amount. This is known as the “initial margin” and subsequent payments (“variation margin”) are made or received by the Fund each day, depending on the daily fluctuation in the value of the contract. The daily changes in contract value are recorded as unrealized gains or losses in the Statement of Operations and the Fund recognizes a realized gain or loss when the contract is closed.

Futures contracts involve, to varying degrees, risk of loss in excess of the amounts reflected in the financial statements. In addition, there is the risk that the Fund may not be able to enter into a closing transaction because of an illiquid secondary market.

(c) Security transactions and investment income. Security transactions are accounted for on a trade date basis. Interest income, adjusted for amortization of premium and accretion of discount, is recorded on the accrual basis. The cost of investments sold is determined by use of the specific identification method. To the extent any issuer defaults or a credit event occurs that impacts the issuer, the Fund may halt any additional interest income accruals and consider the realizability of interest accrued up to the date of default or credit event.

(d) Distributions to shareholders. Distributions from net investment income of the Fund, if any, are declared quarterly and paid on a monthly basis. The Fund intends to satisfy

18 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

conditions that will enable interest from municipal securities, which is exempt from federal and certain state income taxes, to retain such tax-exempt status when distributed to the shareholders of the Fund. Distributions of net realized gains, if any, are taxable and are declared at least annually. Distributions to shareholders of the Fund are recorded on the ex-dividend date and are determined in accordance with income tax regulations, which may differ from GAAP. Distributions to preferred shareholders are accrued and paid on a weekly basis and are determined as described in Note 5.

(e) Compensating balance arrangements. The Fund has an arrangement with its custodian bank whereby a portion of the custodian’s fees is paid indirectly by credits earned on the Fund’s cash on deposit with the bank.

(f) Federal and other taxes. It is the Fund’s policy to comply with the federal income and excise tax requirements of the Internal Revenue Code of 1986 (the “Code”), as amended, applicable to regulated investment companies. Accordingly, the Fund intends to distribute its taxable income and net realized gains, if any, to shareholders in accordance with timing requirements imposed by the Code. Therefore, no federal or state income tax provision is required in the Fund’s financial statements.

Management has analyzed the Fund’s tax positions taken on income tax returns for all open tax years and has concluded that as of May 31, 2014, no provision for income tax is required in the Fund’s financial statements. The Fund’s federal and state income and federal excise tax returns for tax years for which the applicable statutes of limitations have not expired are subject to examination by the Internal Revenue Service and state departments of revenue.

(g) Reclassification. GAAP requires that certain components of net assets be reclassified to reflect permanent differences between financial and tax reporting. These reclassifications have no effect on net assets or net asset value per share.

2. Investment management agreement and other transactions with affiliates

Legg Mason Partners Fund Advisor, LLC (“LMPFA”) is the Fund’s investment manager and Western Asset Management Company (“Western Asset”) is the Fund’s subadviser. LMPFA and Western Asset are wholly-owned subsidiaries of Legg Mason, Inc. (“Legg Mason”).

LMPFA provides administrative and certain oversight services to the Fund. The Fund pays LMPFA an investment management fee, calculated daily and paid monthly, at an annual rate of 0.55% of the Fund’s average weekly net assets. For purposes of calculating this fee, the liquidation value of any outstanding preferred stock of the Fund is not deducted in determining the Fund’s net assets.

LMPFA delegates to Western Asset the day-to-day portfolio management of the Fund. For its services, LMPFA pays Western Asset 70% of the net management fee it receives from the Fund.

All officers and one Director of the Fund are employees of Legg Mason or its affiliates and do not receive compensation from the Fund.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 19

Notes to financial statements (unaudited) (cont’d)

3. Investments

During the six months ended May 31, 2014, the aggregate cost of purchases and proceeds from sales of investments (excluding short-term investments) were as follows:

Purchases	$	11,889,943
Sales		11,943,722

At May 31, 2014, the aggregate gross unrealized appreciation and depreciation of investments for federal income tax purposes were substantially as follows:

Gross unrealized appreciation	$	18,524,657
Gross unrealized depreciation		(226,900)
Net unrealized appreciation	$	18,297,757

At May 31, 2014, the Fund had the following open futures contracts:

	Number of Contracts		Expiration Date		Basis Value		Market Value		Unrealized Depreciation
Contracts to Sell:
U.S. Treasury Ultra Long-Term Bonds		69		9/14	$	9,383,854	$	9,485,344	$	(101,490)

4. Derivative instruments and hedging activities

GAAP requires enhanced disclosure about an entity’s derivative and hedging activities.

Below is a table, grouped by derivative type, that provides information about the fair value and the location of derivatives within the Statement of Assets and Liabilities at May 31, 2014.

LIABILITY DERIVATIVES1
	Interest Rate Risk
Futures contracts2	$	101,490

¹  Generally, the balance sheet location for asset derivatives is receivables/net unrealized appreciation (depreciation) and for liability derivatives is payables/net unrealized appreciation (depreciation).

²  Includes cumulative appreciation (depreciation) of futures contracts as reported in the footnotes. Only variation margin is reported within the receivables and/or payables on the Statement of Assets and Liabilities.

The following tables provide information about the effect of derivatives and hedging activities on the Fund’s Statement of Operations for the six months ended May 31, 2014. The first table provides additional detail about the amounts and sources of gains (losses) realized on derivatives during the period. The second table provides additional information about the change in unrealized appreciation (depreciation) resulting from the Fund’s derivatives and hedging activities during the period.

AMOUNT OF REALIZED GAIN (LOSS) ON DERIVATIVES RECOGNIZED
	Interest Rate Risk
Futures contracts	$	(527,124)
CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION) ON DERIVATIVES RECOGNIZED
	Interest Rate Risk
Futures contracts	$	(121,690)

20 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

During the six months ended May 31, 2014, the volume of derivative activity for the Fund was as follows:

	Average Market Value
Futures contracts (to sell)	$	8,900,210

The following table presents by financial instrument, the Fund’s derivative assets net of the related collateral received by the Fund at May 31, 2014:

	Gross Amount of Derivative Assets in the Statement of Assets and Liabilities1		Collateral Received		Net Amount
Futures contracts2	$	15,094		—	$	15,094

¹ Absent an event of default or early termination, derivative assets and liabilities are presented gross and not offset in the Statement of Assets and Liabilities.

² Amount represents the current day’s variation margin as reported in the Statement of Assets and Liabilities. It differs from the cumulative appreciation (depreciation) presented in the previous table.

5. Auction rate preferred stock

On April 2, 1993, the Fund closed its public offering of 800 shares of $0.001 par value Auction Rate Cumulative Preferred Stock, Series M (“Preferred Stock”), at an offering price of $50,000 per share. On July 20, 2007, the Fund acquired the Preferred Stock of Western Asset Municipal Partners Fund II Inc. On October 1, 1993, Western Asset Municipal Partners Fund II Inc. closed its public offering of 900 shares of $0.001 par value Preferred Stock at an offering price of $50,000 per share. Thus, the Fund now has 1,700 shares of Preferred Stock outstanding. The Preferred Stock has a liquidation preference of $50,000 per share plus an amount equal to accumulated but unpaid dividends (whether or not earned or declared) and subject to certain restrictions, are redeemable in whole or in part.

Dividend rates generally reset every 7 days and are determined by auction procedures. The dividend rate cannot exceed a certain maximum rate, including in the event of a failed auction. The maximum rate is calculated using the higher of 110% of the taxable equivalent of the short-term municipal bond rate and 110% of the prevailing 30 day AA commercial paper rate. The Fund may pay higher maximum rates if the rating of the Fund’s Preferred Stock were to be lowered by the rating agencies. To the extent capital gains and other taxable income are allocated to holders of Preferred Shares for tax purposes, the Fund will likely have to pay higher dividends to holders of Preferred Shares to compensate them for the increased tax liability to them resulting from such allocation. Due to failed auctions experienced by the Fund’s Preferred Stock starting on February 15, 2008, the Fund pays the applicable maximum rate. The dividend rates ranged from 0.066% to 0.230% during the six months ended May 31, 2014. The weighted average dividend rate for the six months ended May 31, 2014 was 0.110%. At May 31, 2014, the dividend rate was 0.131%.

After each auction, the auction agent will pay to each broker/dealer, from monies the Fund provides, a participation fee. For the period of the report and for all previous periods since the ARCPS have been outstanding, the participation fee has been paid at the annual rate of

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 21

Notes to financial statements (unaudited) (cont’d)

0.25% of the purchase price of the ARCPS that the broker/dealer places at the auction. However, on August 3, 2009 and December 28, 2009, Citigroup Global Markets Inc. (“CGM”) and Merrill Lynch, Pierce, Fenner & Smith Inc., respectively, reduced their participation fee to an annual rate of 0.05% of the purchase price of the ARCPS, in the case of a failed auction. Effective June 1, 2010, Wells Fargo Advisors, LLC reduced its participation fee to an annual rate of 0.10% of the purchase price of the ARCPS, in the case of a failed auction. For the six months ended May 31, 2014, the Fund paid $81,788 to participating broker/dealers.

The Fund is subject to certain restrictions relating to the Preferred Stock. The Fund may not declare dividends or make other distributions on shares of common stock or purchase any such shares if, at the time of the declaration, distribution or purchase, asset coverage with respect to the outstanding Preferred Stock would be less than 200%. The Preferred Stock is also subject to mandatory redemption at $50,000 per share plus any accumulated or unpaid dividends, whether or not declared, if certain requirements relating to the composition of the assets and liabilities of the Fund as set forth in its Articles Supplementary are not satisfied.

The Preferred Stock Shareholders are entitled to one vote per share and generally vote with the common stock shareholders but vote separately as a class to elect two directors and on certain matters affecting the rights of the Preferred Stock. The issuance of Preferred Stock poses certain risks to holders of common stock, including, among others, the possibility of greater market price volatility, and in certain market conditions, the yield to holders of common stock may be adversely affected. The Fund is required to maintain certain asset coverages with respect to the Preferred Stock. If the Fund fails to maintain these coverages and does not cure any such failure within the required time period, the Fund is required to redeem a requisite number of the Preferred Stock in order to meet the applicable requirement. The Preferred Stock is otherwise not redeemable by holders of the shares. Additionally, failure to meet the foregoing asset requirements would restrict the Fund’s ability to pay dividends to common shareholders.

6. Distributions subsequent to May 31, 2014

The following distributions have been declared by the Fund’s Board of Directors and are payable subsequent to the period of this report:

Record Date	Payable Date		Amount
6/20/2014		6/27/2014	$0.0725
7/18/2014		7/25/2014	$0.0725
8/22/2014		8/29/2014	$0.0725

7. Recent accounting pronouncement

The Fund has adopted the disclosure provisions of Financial Accounting Standards Board (“FASB”) Accounting Standards Update 2011-11 (“ASU 2011-11”), Balance Sheet (Topic 210) — Disclosures about Offsetting Assets and Liabilities along with the related scope clarification provisions of FASB Accounting Standards Update 2013-01 (“ASU 2013-01”) entitled Balance Sheet (Topic 210) — Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. ASU 2011-11 is intended to enhance disclosures on the

22 Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report

offsetting of financial assets and liabilities by requiring entities to disclose both gross and net information about financial instruments and transactions that are either offset in the statement of assets and liabilities or subject to a master netting agreement or similar arrangement. ASU 2013-01 limits the scope of ASU 2011-11’s disclosure requirements on offsetting to financial assets and financial liabilities related to derivatives, repurchase and reverse repurchase agreements, and securities lending and securities borrowing transactions.

Western Asset Municipal Partners Fund Inc. 2014 Semi-Annual Report 23

Additional shareholder information (unaudited)

Result of annual meeting of shareholders

The Annual Meeting of Shareholders of Western Asset Municipal Partners Fund Inc. was held on March 28, 2014, for the purpose of considering and voting upon the election of Directors. The following table provides information concerning the matter voted upon at the meeting:

Election of directors

Nominees	Common Shares and Preferred Shares (together, as a single class) Votes For		Common Shares and Preferred Shares (together, as a single class) Votes Withheld		Auction Preferred Shares Votes For		Auction Preferred Shares Votes Withheld
Daniel P. Cronin		8,499,561		258,893		0		0
Paolo M. Cucchi		8,480,427		278,027		0		0
Kenneth D. Fuller		0		0		1,161		140

At May 31, 2014, in addition to Daniel P. Cronin, Paolo M. Cucchi and Kenneth D. Fuller, the other Directors of the Fund were as follows:

Carol L. Colman

Leslie H. Gelb

William R. Hutchinson

Eileen A. Kamerick

Riordan Roett

Jeswald W. Salacuse*

* Mr. Salacuse has retired from the Board of Directors, effective June 30, 2014.

24 Western Asset Municipal Partners Fund Inc.

Dividend reinvestment plan (unaudited)

Pursuant to certain rules of the SEC, the following additional disclosure is provided.

Pursuant to the Fund’s Dividend Reinvestment Plan (“Plan”), holders of Common Stock whose shares of Common Stock are registered in their own names will be deemed to have elected to have all distributions automatically reinvested by American Stock Transfer & Trust Company (“Plan Agent”) in Fund shares pursuant to the Plan, unless they elect to receive distributions in cash. Holders of Common Stock who elect to receive distributions in cash will receive all distributions in cash by check in dollars mailed directly to the holder by the Plan Agent as dividend-paying agent. Holders of Common Stock who do not wish to have distributions automatically reinvested should notify the Plan Agent at the address below. Distributions with respect to Common Stock registered in the name of a bank, broker-dealer or other nominee (i.e., in “street name”) will be reinvested under the Plan unless the service is not provided by the bank, broker-dealer or other nominee or the holder elects to receive distributions in cash. Investors who own shares registered in the name of a bank, broker-dealer or other nominee should consult with such nominee as to participation in the Plan through such nominee, and may be required to have their shares registered in their own names in order to participate in the Plan.

The Plan Agent serves as agent for the holders of Common Stock in administering the Plan. After the Fund declares a distribution on the Common Stock or determines to make a capital gain distribution, the Plan Agent will, as agent for the participants, receive the cash payment and use it to buy the Fund’s Common Stock in the open market, on the NYSE or elsewhere, for the participants’ accounts. The Fund will not issue any new shares of Common Stock in connection with the Plan.

Participants have the option of making additional cash payments to the Plan Agent, monthly, in a minimum amount of $250, for investment in the Fund’s Common Stock. The Plan Agent will use all such funds received from participants to purchase shares of Common Stock in the open market on or about the first business day of each month. To avoid unnecessary cash accumulations, and also to allow ample time for receipt and processing by the Plan Agent, it is suggested that participants send in voluntary cash payments to be received by the Plan Agent approximately ten days before an applicable purchase date specified above. A participant may withdraw a voluntary cash payment by written notice, if the notice is received by the Plan Agent not less than 48 hours before such payment is to be invested.

The Plan Agent maintains all shareholder accounts in the Plan and furnishes written confirmations of all transactions in an account, including information needed by shareholders for personal and tax records. Shares of Common Stock in the account of each Plan participant will be held by the Plan Agent in the name of the participant, and each shareholder’s proxy will include those shares purchased pursuant to the Plan.

In the case of holders of Common Stock, such as banks, broker-dealers or other nominees, who hold shares for others who are beneficial owners, the Plan Agent will administer the Plan on the basis of the number of shares of Common Stock certified from time to time by

Western Asset Municipal Partners Fund Inc. 25

Dividend reinvestment plan (unaudited) (cont’d)

the holders as representing the total amount registered in such holders’ names and held for the account of beneficial owners that have not elected to receive distributions in cash.

There is no charge to participants for reinvesting of distributions or voluntary cash payments. The Plan Agent’s fees for the reinvestment of distributions and voluntary cash payments will be paid by the Fund. However, each participant will pay a pro rata share of brokerage commissions incurred with respect to the Plan Agent’s open market purchases in connection with the reinvestment of distributions and voluntary cash payments made by the participant. The receipt of distributions under the Plan will not relieve participants of any income tax which may be payable on such distributions.

Participants may terminate their accounts under the Plan by notifying the Plan Agent in writing. Such termination will be effective immediately if notice in writing is received by the Plan Agent not less than ten days prior to any distribution record date. Upon termination, the Plan Agent will send the participant a certificate for the full shares held in the account and a cash adjustment for any fractional shares or, upon written instruction from the participant, the Plan Agent will sell part or all of the participant’s shares and remit the proceeds to the participant, less a $2.50 fee plus brokerage commission for the transaction.

Experience under the Plan may indicate that changes in the Plan are desirable. Accordingly, the Fund and the Plan Agent reserve the right to terminate the Plan as applied to any voluntary cash payments made and any distributions paid subsequent to notice of the termination sent to all participants in the Plan at least 30 days before the record date for the distribution. The Plan also may be amended by the Fund or the Plan Agent upon at least 30 days’ written notice to participants in the Plan.

All correspondence concerning the Plan should be directed to the Plan Agent at 6201 15th Avenue, Brooklyn, New York 11219 or by telephone at 1-888-888-0151.

26 Western Asset Municipal Partners Fund Inc.

Western Asset

Municipal Partners Fund Inc.

Directors

Carol L. Colman

Daniel P. Cronin

Paolo M. Cucchi

Kenneth D. Fuller

Chairman

Leslie H. Gelb

William R. Hutchinson

Eileen A. Kamerick

Riordan Roett

Jeswald W. Salacuse*

Officers

Kenneth D. Fuller

President and

Chief Executive Officer

Richard F. Sennett

Principal Financial Officer

Ted P. Becker

Chief Compliance Officer

Vanessa A. Williams

Identity Theft Prevention Officer

Robert I. Frenkel

Secretary and

Chief Legal Officer

Thomas C. Mandia

Assistant Secretary

Steven Frank

Treasurer

Jeanne M. Kelly

Senior Vice President

* Mr. Salacuse has retired from the Board of Directors, effective June 30, 2014.

Western Asset Municipal Partners Fund Inc.

620 Eighth Avenue 49th Floor New York, NY 10018

Investment manager

Legg Mason Partners Fund Advisor, LLC

Subadviser

Western Asset Management Company

Custodian

State Street Bank and Trust Company

1 Lincoln Street Boston, MA 02111

Transfer agent

American Stock Transfer & Trust Company 6201 15th Avenue Brooklyn, NY 11219

Auction agent

Deutsche Bank

60 Wall Street New York, NY 10005

Independent registered public accounting firm

KPMG LLP 345 Park Avenue New York, NY 10154

Legal counsel

Simpson Thacher & Bartlett LLP 425 Lexington Avenue New York, NY 10017

New York Stock Exchange Symbol

MNP

Legg Mason Funds Privacy and Security Notice

Your Privacy and the Security of Your Personal Information is Very Important to the Legg Mason Funds

This Privacy and Security Notice (the “Privacy Notice”) addresses the Legg Mason Funds’ privacy and data protection practices with respect to nonpublic personal information the Funds receive. The Legg Mason Funds include any funds sold by the Funds’ distributor, Legg Mason Investor Services, LLC, as well as Legg Mason-sponsored closed-end funds and certain closed-end funds managed or sub-advised by Legg Mason or its affiliates. The provisions of this Privacy Notice apply to your information both while you are a shareholder and after you are no longer invested with the Funds.

The Type of Nonpublic Personal Information the Funds Collect About You

The Funds collect and maintain nonpublic personal information about you in connection with your shareholder account. Such information may include, but is not limited to:

Ÿ Personal information included on applications or other forms;

Ÿ Account balances, transactions, and mutual fund holdings and positions;

Ÿ Online account access user IDs, passwords, security challenge question responses; and

Ÿ Information received from consumer reporting agencies regarding credit history and creditworthiness (such as the amount of an individual’s total debt, payment history, etc.).

How the Funds Use Nonpublic Personal Information About You

The Funds do not sell or share your nonpublic personal information with third parties or with affiliates for their marketing purposes, or with other financial institutions or affiliates for joint marketing purposes, unless you have authorized the Funds to do so. The Funds do not disclose any nonpublic personal information about you except as may be required to perform transactions or services you have authorized or as permitted or required by law. The Funds may disclose information about you to:

Ÿ Employees, agents, and affiliates on a “need to know” basis to enable the Funds to conduct ordinary business or comply with obligations to government regulators;

Ÿ Service providers, including the Funds’ affiliates, who assist the Funds as part of the ordinary course of business (such as printing, mailing services, or processing or servicing your account with us) or otherwise perform services on the Funds’ behalf, including companies that may perform marketing services solely for the Funds;

Ÿ The Funds’ representatives such as legal counsel, accountants and auditors; and

Ÿ Fiduciaries or representatives acting on your behalf, such as an IRA custodian or trustee of a grantor trust.

NOT PART OF THE SEMI-ANNUAL REPORT

Legg Mason Funds Privacy and Security Notice (cont’d)

Except as otherwise permitted by applicable law, companies acting on the Funds’ behalf are contractually obligated to keep nonpublic personal information the Funds provide to them confidential and to use the information the Funds share only to provide the services the Funds ask them to perform.

The Funds may disclose nonpublic personal information about you when necessary to enforce their rights or protect against fraud, or as permitted or required by applicable law, such as in connection with a law enforcement or regulatory request, subpoena, or similar legal process. In the event of a corporate action or in the event a Fund service provider changes, the Funds may be required to disclose your nonpublic personal information to third parties. While it is the Funds’ practice to obtain protections for disclosed information in these types of transactions, the Funds cannot guarantee their privacy policy will remain unchanged.

Keeping You Informed of the Funds’ Privacy and Security Practices

The Funds will notify you annually of their privacy policy as required by federal law. While the Funds reserve the right to modify this policy at any time they will notify you promptly if this privacy policy changes.

The Funds’ Security Practices

The Funds maintain appropriate physical, electronic and procedural safeguards designed to guard your nonpublic personal information. The Funds’ internal data security policies restrict access to your nonpublic personal information to authorized employees, who may use your nonpublic personal information for Fund business purposes only.

Although the Funds strive to protect your nonpublic personal information, they cannot ensure or warrant the security of any information you provide or transmit to them, and you do so at your own risk. In the event of a breach of the confidentiality or security of your nonpublic personal information, the Funds will attempt to notify you as necessary so you can take appropriate protective steps. If you have consented to the Funds using electronic communications or electronic delivery of statements, they may notify you under such circumstances using the most current email address you have on record with them.

In order for the Funds to provide effective service to you, keeping your account information accurate is very important. If you believe that your account information is incomplete, not accurate or not current, or if you have questions about the Funds’ privacy practices, write the Funds using the contact information on your account statements, email the Funds by clicking on the Contact Us section of the Funds’ website at www.leggmason.com, or contact the Fund at 1-888-777-0102.

Revised April 2011

NOT PART OF THE SEMI-ANNUAL REPORT

Western Asset Municipal Partners Fund Inc.

Western Asset Municipal Partners Fund Inc.

620 Eighth Avenue

49^th Floor

New York, NY 10018

Notice is hereby given in accordance with Section 23(c) of the Investment Company Act of 1940, as amended, that from time to time the Fund may purchase at market prices shares of its common stock in the open market.

The Fund files its complete schedule of portfolio holdings with the Securities and Exchange Commission (“SEC”) for the first and third quarters of each fiscal year on Form N-Q. The Fund’s Forms N-Q are available on the SEC’s website at www.sec.gov. The Funds Forms N-Q may be reviewed and copied at the SEC’s Public Reference Room in Washington D.C., and information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. To obtain information on Form N-Q from the Fund, shareholders can call 1-888-777-0102.

Information on how the Fund voted proxies relating to portfolio securities during the prior 12-month period ended June 30th of each year and a description of the policies and procedures that the Fund uses to determine how to vote proxies related to portfolio transactions are available (1) without charge, upon request, by calling 1-888-777-0102, (2) on the Fund’s website at www.lmcef.com and (3) on the SEC’s website at www.sec.gov.

This report is transmitted to the shareholders of Western Asset Municipal Partners Fund Inc. for their information. This is not a prospectus, circular or representation intended for use in the purchase of shares of the Fund or any securities mentioned in this report.

American Stock

Transfer & Trust Company

6201 15th Avenue

Brooklyn, NY 11219

WASX010083 7/14 SR14-2243

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 herein under Item 1.

ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not Applicable.

ITEM 8(b) INVESTMENT PROFESSIONALS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

On or about March 31, 2014, S. Kenneth Leech became part of the portfolio management team of the Fund.

NAME AND ADDRESS	LENGTH OF TIME SERVED	PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS
S. Kenneth Leech Western Asset 385 East Colorado Blvd. Pasadena, CA 91101	Since March 31, 2014	Responsible for the day-to-day management with other members of the Fund’s portfolio management team; Chief Investment Officer of Western Asset from 1998 to 2008 and since 2014; Senior Advisor/Chief Investment Officer Emeritus of Western Asset from 2008-2013; Co- Chief Investment Officer of Western Asset from 2013-2014.

ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.

Not Applicable.

ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

Not Applicable.

ITEM 11. CONTROLS AND PROCEDURES.

(a) The registrant’s principal executive officer and principal financial officer have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a- 3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”)) are effective as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the disclosure controls and procedures required by Rule 30a-3(b) under the 1940 Act and 15d-15(b) under the Securities Exchange Act of 1934.

(b) There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the second fiscal quarter of the period covered by this report that have materially affected, or are likely to materially affect the registrant’s internal control over financial reporting.

ITEM 12. EXHIBITS.

(a) (1) Not Applicable.

Exhibit 99.CODE ETH

(a) (2) Certifications pursuant to section 302 of the Sarbanes-Oxley Act of 2002 attached hereto.

Exhibit 99.CERT

(b) Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 attached hereto.

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, there unto duly authorized.

Western Asset Municipal Partners Fund Inc.

By:	/s/ Kenneth D. Fuller
	Kenneth D. Fuller
	Chief Executive Officer
Date:	July 24, 2014

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.

By:	/s/ Kenneth D. Fuller
	Kenneth D. Fuller
	Chief Executive Officer
Date:	July 24, 2014

By:	/s/ Richard F. Sennett
	Richard F. Sennett
	Principal Financial Officer
Date:	July 24, 2014