FORM 10-Q

                                  UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

(Mark One)

[X]      QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
         EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2003

OR

[  ]     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
         EXCHANGE ACT OF 1934

For the transition period from ________ to ___________

Commission file number: 0-3683

                              TRUSTMARK CORPORATION

State or other  jurisdiction of                              (I.R.S.  Employer
incorporation or organization                                Identification No.)
         Mississippi                                             64-0471500

Trustmark Corporation
248 East Capitol Street
Jackson, MS 39201
(601) 208-5111

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes X No ____

Indicate  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined in Rule 12b-2 of the Exchange Act). Yes X No ____

Indicate the number of shares outstanding of each of the registrant's classes of
common stock, as of October 31, 2003.

         Title                                                       Outstanding
Common stock, no par value                                            58,459,443






                   PART I. FINANCIAL INFORMATION
                    ITEM 1. FINANCIAL STATEMENTS

                     Trustmark Corporation and Subsidiaries
                           Consolidated Balance Sheets
                                ($ in thousands)

                                                     (Unaudited)
                                                    September 30,   December 31,
                                                         2003           2002
                                                     -----------     ----------
Assets
Cash and due from banks (noninterest-bearing)        $  284,779      $  357,427
Federal funds sold and securities purchased
    under reverse repurchase agreements                  59,500          23,957
Securities available for sale (at fair value)         1,676,969       1,262,570
Securities held to maturity (fair value:
 $215,482 - 2003; $578,150 - 2002)                      201,052         549,197
Loans held for sale                                     158,710         199,680
Loans                                                 4,865,500       4,417,686
Less allowance for loan losses                           74,486          74,771
                                                     ----------      ----------
   Net loans                                          4,791,014       4,342,915
Premises and equipment                                  109,126         104,113
Intangible assets                                       167,738         119,643
Other assets                                            184,216         179,204
                                                     ----------      ----------
     Total Assets                                    $7,633,104      $7,138,706
                                                     ==========      ==========

Liabilities
Deposits:
     Noninterest-bearing                             $1,256,697      $1,251,240
     Interest-bearing                                 3,740,256       3,435,056
                                                     ----------      ----------
         Total deposits                               4,996,953       4,686,296
Federal funds purchased                                 397,333         319,985
Securities sold under repurchase agreements             427,377         634,993
Short-term borrowings                                   635,111         275,959
Long-term FHLB advances                                 431,068         475,000
Other liabilities                                        63,164          66,939
                                                     ----------      ----------
     Total Liabilities                                6,951,006       6,459,172

Commitments and Contingencies

Shareholders' Equity
Common stock, no par value:
     Authorized: 250,000,000 shares
     Issued and outstanding:  58,519,206 shares -
        2003; 60,516,668 shares - 2002                   12,193          12,609
Capital surplus                                         140,154         188,652
Retained earnings                                       529,154         470,317
Accumulated other comprehensive income,
     net of tax                                             597           7,956
                                                     ----------      ----------
     Total Shareholders' Equity                         682,098         679,534
                                                     ----------      ----------
     Total Liabilities and Shareholders' Equity      $7,633,104      $7,138,706
                                                     ==========      ==========


See notes to consolidated financial statements.




                     Trustmark Corporation and Subsidiaries
                        Consolidated Statements of Income
                     ($ in thousands except per share data)
                                   (Unaudited)



                                                      Three Months Ended           Nine Months Ended
                                                         September 30,               September 30,
                                                     ---------------------        --------------------
                                                       2003         2002            2003         2002
                                                     --------     --------        --------     -------
                                                                                   
Interest Income
Interest and fees on loans                           $ 71,093     $ 77,554        $212,960     $231,100
Interest on securities:
     Taxable                                           12,065       21,519          50,610       70,197
     Tax exempt                                         1,953        2,175           6,033        6,747
Interest on federal funds sold and securities
     purchased under reverse repurchase agreements         60          150             236          345
Other interest income                                      14           23              37        1,368
                                                     --------     --------        --------     --------
     Total Interest Income                             85,185      101,421         269,876      309,757

Interest Expense
Interest on deposits                                   14,167       19,634          45,882       61,432
Interest on federal funds purchased and securities
     sold under repurchase agreements                   2,269        3,058           8,096        9,946
Other interest expense                                  4,918        5,636          14,681       16,566
                                                     --------     --------        --------     --------
     Total Interest Expense                            21,354       28,328          68,659       87,944
                                                     --------     --------        --------     --------
Net Interest Income                                    63,831       73,093         201,217      221,813
Provision for loan losses                               1,771        3,000           7,420       10,307
                                                     --------     --------        --------     --------

Net Interest Income After Provision
     for Loan Losses                                   62,060       70,093         193,797      211,506

Noninterest Income
Service charges on deposit accounts                    14,304       12,725          40,054       36,546
Other account charges and fees                          7,267        7,082          21,028       21,286
Insurance commissions                                   7,708        7,107          16,458       13,580
Mortgage servicing fees                                 4,091        4,310          12,652       12,925
Trust service income                                    2,519        2,402           7,176        7,413
Gains on sales of loans                                 5,571        2,376          14,715        6,050
Securities gains                                           57       12,033          12,226       12,549
Other income                                           (1,614)      (3,114)         (1,137)      (5,792)
                                                     --------     --------        --------     --------
     Total Noninterest Income                          39,903       44,921         123,172      104,557

Noninterest Expense
Salaries and employee benefits                         31,434       30,568          96,855       89,030
Net occupancy - premises                                3,395        3,168           9,541        8,863
Equipment expense                                       3,721        3,598          11,104       11,357
Services and fees                                       7,806        8,093          23,696       23,720
Amortization/impairment of intangible assets           (1,389)      15,063          19,015       18,886
Loan expense                                            2,352        2,373           7,155        7,314
Other expense                                           5,397        5,618          15,023       15,015
                                                     --------     --------        --------     --------
     Total Noninterest Expense                         52,716       68,481         182,389      174,185
                                                     --------     --------        --------     --------
Income Before Income Taxes                             49,247       46,533         134,580      141,878
Income taxes                                           16,829       16,471          46,514       50,084
                                                     --------     --------        --------     --------
Net Income                                           $ 32,418     $ 30,062        $ 88,066     $ 91,794
                                                     ========     ========        ========     ========


Earnings Per Share
     Basic                                           $   0.55     $   0.49        $   1.49     $   1.47
                                                     ========     ========        ========     ========
     Diluted                                         $   0.55     $   0.49        $   1.48     $   1.46
                                                     ========     ========        ========     ========


See notes to consolidated financial statements.




                     Trustmark Corporation and Subsidiaries
           Consolidated Statements of Changes in Shareholders' Equity
                                ($ in thousands)
                                   (Unaudited)

                                                           2003        2002
                                                        ---------   ---------

Balance, January 1,                                     $ 679,534   $ 685,444
Comprehensive income:
     Net income per consolidated statements of income      88,066      91,794
     Net change in fair value of securities available
       for sale, net of tax                               (10,325)     (1,198)
     Net change in fair value of cash flow hedges,
       net of tax                                           2,966      (3,101)
                                                        ---------    --------
          Comprehensive income                             80,707      87,495
Cash dividends paid                                       (29,229)    (28,166)
Exercise of stock options                                   1,995           -
Stock compensation expense                                    266           -
Repurchase and retirement of common stock                 (51,175)    (52,139)
                                                        ---------    ---------
Balance, September 30,                                  $ 682,098    $ 692,634
                                                        =========    =========


See notes to consolidated financial statements.



                     Trustmark Corporation and Subsidiaries
                      Consolidated Statements of Cash Flows
                                ($ in thousands)
                                   (Unaudited)

                                                             Nine Months Ended
                                                               September 30,
                                                           ---------------------
                                                              2003        2002
                                                           ----------  ---------
Operating Activities
Net income                                                 $   88,066  $ 91,794
Adjustments to reconcile net income to net cash
     provided by operating activities:
        Provision for loan losses                               7,420    10,307
        Depreciation and amortization/impairment               28,032    28,414
        Net amortization (accretion) of securities             13,886      (750)
        Securities gains                                      (12,226)  (12,549)
        Gains on sales of loans                               (14,715)   (6,050)
        Deferred income tax provision (benefit)                   977    (5,036)
        Proceeds from sales of loans                        1,217,389   673,698
        Purchases and originations of loans held for sale  (1,176,419) (715,427)
        Net increase in intangible assets                     (17,586)  (10,385)
        Net increase in other assets                           (6,876)     (257)
        Net increase (decrease) in other liabilities              689    (1,992)
        Other operating activities, net                           (54)      547
                                                           ----------  --------
Net cash provided by operating activities                     128,583    52,314

Investing Activities
Proceeds from calls and maturities of securities held
     to maturity                                              429,647   198,991
Proceeds from calls and maturities of securities
     available for sale                                       349,382   263,676
Proceeds from sales of securities available for sale          267,895   229,442
Purchases of securities held to maturity                       (3,978)  (19,708)
Purchases of securities available for sale                 (1,127,658) (361,982)
Net increase in federal funds sold and securities
     purchased under reverse repurchase agreements            (35,543)  (51,535)
Net increase in loans                                        (218,389)  (51,728)
Purchases of premises and equipment                            (5,964)  (14,901)
Proceeds from sales of premises and equipment                   1,287        19
Proceeds from sales of other real estate                        4,510     3,149
Cash paid in business combinations, net                       (69,802)   (7,799)
                                                           ----------  --------
Net cash (used in) provided by investing activities          (408,613)  187,624

Financing Activities
Net increase in deposits                                      100,839   208,829
Net decrease in federal funds purchased and securities sold
     under repurchase agreements                             (130,268) (313,490)
Net increase (decrease) in other borrowings                   359,152  (128,927)
(Maturities of) proceeds from long-term FHLB advances         (43,932)  100,000
Cash dividends                                                (29,229)  (28,166)
Proceeds from the exercise of stock options                     1,995         -
Repurchase and retirement of common stock                     (51,175)  (52,139)
                                                           ----------  --------
Net cash provided by (used in) financing activities           207,382  (213,893)
                                                           ----------  --------
(Decrease) increase in cash and cash equivalents              (72,648)   26,045
Cash and cash equivalents at beginning of period              357,427   328,779
                                                           ----------  --------
Cash and cash equivalents at end of period                 $  284,779  $354,824
                                                           ==========  ========


See notes to consolidated financial statements.



                      TRUSTMARK CORPORATION & SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



NOTE 1 - BASIS OF FINANCIAL STATEMENT PRESENTATION AND PRINCIPLES
         OF CONSOLIDATION

The accompanying unaudited condensed consolidated financial statements have been
prepared in conformity  with  accounting  principles  generally  accepted in the
United  States  of  America  for  interim  financial  information  and  with the
instructions  to  Form  10-Q.  Accordingly,  they  do  not  include  all  of the
information and footnotes required by accounting  principles  generally accepted
in the United  States of  America  for  complete  financial  statements.  In the
opinion of Management, all adjustments (consisting of normal recurring accruals)
considered  necessary for the fair presentation of these consolidated  financial
statements  have been  included.  The notes  included  herein  should be read in
conjunction with the notes to the consolidated  financial statements included in
Trustmark Corporation's (Trustmark) 2002 annual report on Form 10-K.

The consolidated  financial  statements  include  Trustmark and its wholly-owned
bank  subsidiaries,  Trustmark  National Bank (TNB) and Somerville  Bank & Trust
Company  (Somerville).  All  intercompany  accounts and  transactions  have been
eliminated in consolidation.  Certain  reclassifications have been made to prior
period amounts to conform with the current period presentation.

NOTE 2 - BUSINESS COMBINATIONS

On August 29,  2003,  Trustmark  acquired  seven  Florida  branches  of The Banc
Corporation of Birmingham,  Alabama, in a business combination  accounted for by
the purchase method of accounting.  These  branches,  known as the Emerald Coast
Division,  serve the markets from Destin to Panama City. In connection  with the
transaction,  Trustmark  paid a $46.8  million  deposit  premium in exchange for
$232.8 million in assets and $209.2  million in deposits and other  liabilities.
Assets  consisted  of $224.3  million in loans,  $6.8  million in  premises  and
equipment and $1.7 million in other assets.  These assets and  liabilities  have
been recorded at fair value based on market conditions and risk  characteristics
at the  acquisition  date.  Loans  were  recorded  at a $1.9  million  discount,
consisting  of a discount for general  credit risk of $3.5  million  offset by a
market premium of $1.6 million. This net discount will be recognized as interest
income over the  estimated  life of the loans.  Excess  costs over  tangible net
assets acquired  totaled $49.5 million,  of which $1.7 million and $47.8 million
have been  allocated to core  deposits and goodwill,  respectively.  Trustmark's
financial statements include the results of operations for this acquisition from
the merger date. The pro forma impact of this acquisition on Trustmark's results
of operations is insignificant.

On June 28, 2002, The Bottrell Insurance Agency, Inc., a wholly-owned subsidiary
of TNB, acquired Chandler-Sampson Insurance, Inc. (CSI) in Jackson, Mississippi.
This business combination, which is not material to Trustmark, was accounted for
under the purchase  method of accounting.  The  shareholders  of CSI received $8
million in cash in  connection  with the merger.  Excess cost over  tangible net
assets  acquired  totaled $10  million,  of which $3 million and $7 million have
been   allocated  to  other   identifiable   intangible   assets  and  goodwill,
respectively. Trustmark's financial statements include the results of operations
for the CSI  acquisition  from the  merger  date.  The pro forma  impact of this
acquisition on Trustmark's results of operations is insignificant.



NOTE 3 - ALLOWANCE FOR LOAN LOSSES

The following table summarizes the activity in the allowance for loan losses for
the nine-month periods ended September 30 ($ in thousands):
                                                          2003           2002
                                                        --------       --------
Balance at beginning of year                            $ 74,771       $ 75,534
Provision charged to expense                               7,420         10,307
Loans charged off                                        (14,675)       (17,281)
Recoveries                                                 6,970          6,978
                                                        --------       --------
      Net charge-offs                                     (7,705)       (10,303)
                                                        --------       --------
   Balance at end of period                             $ 74,486       $ 75,538
                                                        ========       ========

At September 30, 2003 and 2002,  the carrying  amounts of nonaccrual  loans were
$26.9  million and $31.0  million,  respectively.  Included in these  nonaccrual
loans at  September  30,  2003 and 2002,  are loans  that are  considered  to be
impaired,  which  totaled  $19.6  million and $23.7  million,  respectively.  At
September  30, 2003,  the total  allowance  for loan losses  related to impaired
loans was $6.1 million  compared  with $6.4 million at September  30, 2002.  The
average  carrying amounts of impaired loans during the third quarter of 2003 and
2002 were $20.4 million and $28.7 million,  respectively. No material amounts of
interest  income were  recognized on impaired loans or nonaccrual  loans for the
third quarter of 2003 or 2002.

NOTE 4 - INTANGIBLE ASSETS

At  September  30, 2003 and December 31,  2002,  intangible  assets,  net of any
applicable  amortization  or  impairment,  consisted  of  the  following  ($  in
thousands):

                                                       Sept. 30,      Dec. 31,
                                                          2003         2002
                                                      ----------    ----------
Mortgage servicing rights                             $   48,767    $   48,827
Goodwill                                                  95,877        48,028
Other identifiable intangible assets:
     Core deposit intangibles                             18,986        19,288
     Insurance customer relationship intangibles           2,491         2,904
     Banking charter                                       1,021             -
                                                      ----------    ----------
          Total amortizable                               22,498        22,192
     Pension plan intangible                                 596           596
                                                      ----------    ----------
          Total other identifiable intangible assets      23,094        22,788
                                                      ----------    ----------
Total intangible assets                               $  167,738    $  119,643
                                                      ==========    ==========


NOTE 5 - STOCK-BASED COMPENSATION

Prior to January 1, 2003,  Trustmark accounted for incentive stock options under
the recognition and measurement  provisions of Accounting Principles Board (APB)
Opinion No. 25,  "Accounting  for Stock Issued to Employees."  Under APB No. 25,
because the exercise price of Trustmark's stock options equaled the market price
for the  underlying  stock on the date of grant,  no  compensation  expense  was
recognized.  Effective  January  1,  2003,  Trustmark  adopted  the  fair  value
recognition provisions of Statement of Financial Accounting Standards (SFAS) No.
123,  "Accounting  for  Stock-Based  Compensation,"  as amended by SFAS No. 148,
"Accounting for Stock-Based Compensation - Transition and Disclosure." Under the
provisions of these statements,  Trustmark will recognize  compensation  expense
for all awards granted, modified or settled after January 1, 2003. The following
table  reflects  pro forma net income  and  earnings  per share for the  periods
presented,  had  Trustmark  elected  to adopt the fair  value  approach  for all
outstanding  options  prior to January 1, 2003 ($ in thousands  except per share
data):


                                                   Three Months Ended      Nine Months Ended
                                                      September 30,          September 30,
                                                  --------------------    -------------------
                                                    2003        2002        2003       2002
                                                  -------      -------    -------     -------
                                                                          
Net income, as reported                           $32,418      $30,062    $88,066     $91,794
Add:  Total stock-based employee compensation
    expense included in reported net income, net
    of related tax effects                             87            -        167           -
Deduct:  Total stock-based employee compensation
    expense determined under fair value based
    method for all awards, net of related tax
    effects                                          (336)        (382)    (1,008)     (1,148)
                                                  -------      -------    -------     -------
Pro forma net income                              $32,169      $29,680    $87,225     $90,646
                                                  =======      =======    =======     =======
Earnings per share:
  As reported
     Basic                                        $  0.55      $  0.49    $  1.49     $  1.47
     Diluted                                         0.55         0.49       1.48        1.46

  Pro forma
     Basic                                        $  0.55      $  0.48    $  1.47     $  1.45
     Diluted                                         0.55         0.48       1.47        1.44


NOTE 6 - CONTINGENCIES

Standby Letters of Credit
Trustmark  issues  financial and  performance  standby  letters of credit in the
normal  course  of  business  in order to  fulfill  the  financing  needs of its
customers.  Standby  letters of credit  are  conditional  commitments  issued by
Trustmark to insure the  performance of a customer to a third party. A financial
standby  letter of credit is a commitment by Trustmark to guarantee a customer's
repayment of an  outstanding  loan or debt  instrument.  Trustmark  guarantees a
customer's  performance  to a  third  party  under  a  contractual  nonfinancial



obligation  through  the use of a  performance  standby  letter of credit.  When
issuing  letters  of  credit,  Trustmark  uses  essentially  the  same  policies
regarding credit risk and collateral which are followed in the lending process.

At September 30, 2003, the maximum potential amount of future payments Trustmark
could be required to make under its standby letters of credit was $73.9 million,
which  also   represented   the  maximum  credit  risk   associated  with  these
commitments.  This amount consisted  primarily of commitments with maturities of
less than  three  years.  These  standby  letters of credit  have an  immaterial
carrying value.  Trustmark holds collateral to support standby letters of credit
when deemed  necessary.  As of September 30, 2003,  the fair value of collateral
held was $21.5 million.

Legal Proceedings
Trustmark  and its  subsidiaries  are parties to lawsuits  and other claims that
arise in the ordinary  course of business.  Some of the lawsuits  assert  claims
related  to the  lending,  collection,  servicing,  investment,  trust and other
business  activities;  and some of the lawsuits  allege  substantial  claims for
damages.  The cases are being  vigorously  contested.  In the regular  course of
business,  Management evaluates estimated losses or costs related to litigation,
and provision is made for anticipated losses whenever  Management  believes that
such losses are probable and can be reasonably  estimated.  At the present time,
Management  believes,  based on the  advice of legal  counsel  and  Management's
evaluation, that the final resolution of pending legal proceedings will not have
a material impact on Trustmark's  consolidated  financial position or results of
operations.

NOTE 7 - EARNINGS PER SHARE

Basic  earnings  per share  (EPS) is  computed  by  dividing  net  income by the
weighted average shares of common stock outstanding.  Diluted EPS is computed by
dividing net income by the weighted average shares of common stock  outstanding,
adjusted for the effect of partially  diluted stock options  outstanding  during
the  period.  The  following  table  reflects  weighted  average  shares used to
calculate basic and diluted EPS for the periods presented:


                                                    Three Months Ended         Nine Months Ended
                                                       September 30,              September 30,
                                                  -----------------------    -----------------------
                                                    2003          2002          2003         2002
                                                  ----------   ----------    ----------   ----------
                                                                              
Basic                                             58,626,951   61,786,676    59,214,354   62,608,357
Dilutive shares (related to stock options)           271,346      174,357       191,656      192,152
                                                  ----------   ----------    ----------   ----------
Diluted                                           58,898,297   61,961,033    59,406,010   62,800,509
                                                  ==========   ==========    ==========   ==========


NOTE 8 - STATEMENTS OF CASH FLOWS

Trustmark  paid income taxes of $45.3 million and $47.2 million  during the nine
months ended September 30, 2003 and 2002, respectively. Interest paid on deposit
liabilities and other borrowings  totaled $70.8 million in the first nine months
of 2003 and $92.6 million in the first nine months of 2002.  For the nine months
ended  September 30, 2003 and 2002,  noncash  transfers from loans to foreclosed
properties were $4.4 million and $5.5 million, respectively.



NOTE 9 - RECENT PRONOUNCEMENTS

In May 2003,  the Financial  Accounting  Standards  Board (FASB) issued SFAS No.
150, "Accounting for Certain Financial  Instruments with Characteristics of both
Liabilities and Equity." This statement  establishes standards for how an issuer
classifies and measures certain financial  instruments with  characteristics  of
both  liabilities  and equity.  The  statement  applies to three  categories  of
freestanding   financial   instruments:   1)  certain   mandatorily   redeemable
instruments,  2) instruments with repurchase obligations and 3) instruments with
obligations to issue a variable  number of shares.  The statement  requires that
previously  issued  instruments that fall within the scope of the statement must
be reclassified as liabilities,  and subsequent  changes in the  measurements of
the  instruments  treated  as  liabilities  must  flow  through  to  the  income
statement.  For  public  companies,  this  statement  became  effective  for all
freestanding  financial instruments entered into or modified after May 31, 2003.
Otherwise it became  effective  at the  beginning  of the first  interim  period
beginning after June 15, 2003. Currently,  Trustmark does not have any financial
instruments within the scope of this statement.

In April 2003,  the FASB issued SFAS No. 149,  "Amendment  of  Statement  133 on
Derivative  Instruments  and  Hedging  Activities."  This  statement  amends and
clarifies  financial  accounting  and  reporting  for  derivative   instruments,
including   certain   derivative   instruments   embedded  in  other   contracts
(collectively  referred to as derivatives) and for hedging activities under SFAS
No. 133,  "Accounting for Derivative  Instruments and Hedging  Activities." This
statement is effective  for  contracts  entered into or modified  after June 30,
2003, and for hedging relationships  designated after June 30, 2003. The effects
of this  statement did not have a material  impact on  Trustmark's  consolidated
financial position or results of operations upon adoption on June 30, 2003.

NOTE 10 - SEGMENT INFORMATION

Effective  January 1, 2003,  Trustmark changed the composition of its reportable
segments to the following:  Consumer Division,  Commercial Division,  Investment
Division and Operations Division. The Consumer Division delivers a full range of
banking, investment and risk management products and services to individuals and
small businesses through Trustmark's extensive branch network.  Included in this
segment are products and services for insurance, credit card, mortgage, indirect
automobile financing and student loans. The Commercial Division provides various
financial products and services to corporate and middle-market clients. Included
among these  products and services are  specialized  services for commercial and
residential real estate development lending as well as other specialized lending
services.  The  Investment  Division  includes  trust  and  fiduciary  services,
discount  brokerage  services  and services for private  banking  clients.  Also
included  in this  segment is a  selection  of  investment  management  services
including  Trustmark's  proprietary mutual fund family. The Operations  Division
consists of  asset/liability  management  activities that include the investment
portfolio and the related gains/losses on sales of securities, as well as credit
risk  management,   bank  operations,   human  resources  and  the  controller's
department.  The  Operations  Division also includes  expenses such as corporate
overhead and amortization of intangible assets.

Trustmark  evaluates  performance and allocates resources based on the profit or
loss of the individual  segments.  Trustmark  utilizes matched maturity transfer
pricing to assign cost of funding to assets and earnings  credits to liabilities
with a  corresponding  offset to the Operations  Division.  Trustmark  allocates
noninterest  expense  based  on  various   activity-based   costing  statistics.
Excluding internal funding,  Trustmark does not have  inter-company  revenues or
expenses.  Additionally,  segment  income tax  expense is  calculated  using the
marginal tax rate. The difference between the marginal and effective tax rate is
included in the Operations Division.

The tables on pages 11 and 12 disclose financial  information,  by segment,  for
the periods ended  September  30, 2003 and 2002.  The prior year period has been
restated to conform to the current presentation.



Trustmark Corporation
Segment Information
($ in thousands)


                                         Consumer     Commercial   Investment   Operations
                                         Division      Division     Division     Division       Total
                                        ----------   -----------   ----------   ----------   ----------
                                                                              
For the three months ended
September 30, 2003
- ---------------------------------------
Net interest income from
    external customers                  $   43,196   $    12,808   $    1,150   $    6,677   $   63,831
Internal funding                             9,187        (1,713)         233       (7,707)           -
                                        ----------   -----------   ----------   ----------   ----------
Net interest income                         52,383        11,095        1,383       (1,030)      63,831
Provision for loan losses                    1,742           (34)          61            2        1,771
                                        ----------   -----------   ----------   ----------   ----------
Net interest income after
    provision for loan losses               50,641        11,129        1,322       (1,032)      62,060
Noninterest income                          30,963         1,708        5,222        2,010       39,903
Noninterest expense                         40,572         3,716        4,825        3,603       52,716
                                        ----------   -----------   ----------   ----------   ----------
Income (loss) before income taxes           41,032         9,121        1,719       (2,625)      49,247
Income taxes                                14,333         3,147          617       (1,268)      16,829
                                        ----------   -----------   ----------   ----------   ----------
Segment net income (loss)               $   26,699   $     5,974   $    1,102   $   (1,357)  $   32,418
                                        ==========   ===========   ==========   ==========   ==========


Selected Financial Information
     Average assets                     $4,235,614   $1,097,256    $ 133,132    $2,033,468   $7,499,470
     Depreciation and amortization      $     (399)  $       34    $     100    $    1,972   $    1,707


For the three months ended
September 30, 2002
- ---------------------------------------
Net interest income from
    external customers                  $   41,208   $   15,094    $   1,235    $   15,556   $   73,093
Internal funding                             7,663       (3,750)        (180)       (3,733)           -
                                        ----------   ----------    ---------    ----------   ----------
Net interest income                         48,871       11,344        1,055        11,823       73,093
Provision for loan losses                    2,531          614          (11)         (134)       3,000
                                        ----------   ----------    ---------    ----------   ----------
Net interest income after
    provision for loan losses               46,340       10,730        1,066        11,957       70,093
Noninterest income                          28,039        1,716        5,356         9,810       44,921
Noninterest expense                         57,134        3,672        4,358         3,317       68,481
                                        ----------   ----------    ---------    ----------   ----------
Income before income taxes                  17,245        8,774        2,064        18,450       46,533
Income taxes                                 5,966        3,027          857         6,621       16,471
                                        ----------   ----------    ---------    ----------   ----------
Segment net income                      $   11,279   $    5,747    $   1,207    $   11,829   $   30,062
                                        ==========   ==========    =========    ==========   ==========


Selected Financial Information
     Average assets                     $3,868,615   $1,107,491    $ 124,759    $1,719,484   $6,820,349
     Depreciation and amortization      $   15,919   $       41    $      83    $    2,097   $   18,140




Trustmark Corporation
Segment Information
($ in thousands)


                                         Consumer    Commercial    Investment   Operations
                                         Division     Division      Division     Division       Total
                                        ----------   ----------    ----------   ----------   ----------
                                                                              
For the nine months ended
September 30, 2003
- ---------------------------------------
Net interest income from
    external customers                  $  124,401   $   38,892    $    3,587   $   34,337   $  201,217
Internal funding                            25,034       (6,026)          212      (19,220)           -
                                        ----------   ----------    ----------   ----------   ----------
Net interest income                        149,435       32,866         3,799       15,117      201,217
Provision for loan losses                    6,954           56            39          371        7,420
                                        ----------   ----------    ----------   ----------   ----------
Net interest income after
    provision for loan losses              142,481       32,810         3,760       14,746      193,797
Noninterest income                          86,469        5,316        14,905       16,482      123,172
Noninterest expense                        140,586       11,321        13,551       16,931      182,389
                                        ----------   ----------    ----------   ----------   ----------
Income before income taxes                  88,364       26,805         5,114       14,297      134,580
Income taxes                                30,887        9,248         1,864        4,515       46,514
                                        ----------   ----------    ----------   ----------   ----------
Segment net income                      $   57,477   $   17,557    $    3,250   $    9,782   $   88,066
                                        ==========   ==========    ==========   ==========   ==========


Selected Financial Information
     Average assets                     $4,075,837   $1,105,490    $  123,324   $2,008,779   $7,313,430
     Depreciation and amortization      $   21,491   $      107    $      310   $    6,124   $   28,032


For the nine months ended
September 30, 2002
- ---------------------------------------
Net interest income from
    external customers                  $  118,787   $   44,640    $    3,704   $   54,682   $  221,813
Internal funding                            23,750       (12,395)        (739)     (10,616)           -
                                        ----------   -----------   ----------   ----------   ----------
Net interest income                        142,537        32,245        2,965       44,066      221,813
Provision for loan losses                    7,361         2,447         (141)         640       10,307
                                        ----------   -----------   ----------   ----------   ----------
Net interest income after
    provision for loan losses              135,176        29,798        3,106       43,426      211,506
Noninterest income                          73,650         5,188       16,338        9,381      104,557
Noninterest expense                        141,125        10,513       12,707        9,840      174,185
                                        ----------   -----------   ----------   ----------   ----------
Income before income taxes                  67,701        24,473        6,737       42,967      141,878
Income taxes                                23,472         8,443        2,580       15,589       50,084
                                        ----------   -----------   ----------   ----------   ----------
Segment net income                      $   44,229    $   16,030   $    4,157   $   27,378   $   91,794
                                        ==========   ===========   ==========   ==========   ==========


Selected Financial Information
     Average assets                     $3,824,155   $1,091,807    $  106,136   $1,807,926   $6,830,024
     Depreciation and amortization      $   21,357   $      123    $      255   $    6,679   $   28,414




ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
            AND RESULTS OF OPERATIONS

The  following  provides  a  narrative  discussion  and  analysis  of  Trustmark
Corporation's  (Trustmark)  financial condition and results of operations.  This
discussion  should  be read  in  conjunction  with  the  consolidated  financial
statements  and the  supplemental  financial  data  included  elsewhere  in this
report.

BUSINESS

Trustmark is a multi-bank holding company headquartered in Jackson, Mississippi,
incorporated under the Mississippi  Business  Corporation Act on August 5, 1968.
Trustmark  commenced doing business in November 1968.  Through its subsidiaries,
Trustmark  operates as a financial services  organization  providing banking and
financial  solutions  to  corporate,   institutional  and  individual  customers
predominantly within the states of Mississippi, Tennessee and Florida.

Trustmark National Bank (TNB), Trustmark's wholly-owned subsidiary, accounts for
substantially all of the assets and revenues of Trustmark.  Initially  chartered
by the State of  Mississippi  in 1889,  TNB is also  headquartered  in  Jackson,
Mississippi.  In addition to banking  activities,  TNB provides  investment  and
insurance  products and services to its  customers  through  three  wholly-owned
subsidiaries, Trustmark Financial Services, Inc., Trustmark Investment Advisors,
Inc. and The Bottrell Insurance Agency, Inc.

Trustmark  also  engages  in  banking   activities   through  its   wholly-owned
subsidiary,  Somerville  Bank & Trust  Company  (Somerville),  headquartered  in
Somerville,  Tennessee. Somerville was acquired in a business combination during
2001  and  presently  has  five  locations  in  Somerville,  Hickory  Withe  and
Rossville,  Tennessee.  In addition to its banking subsidiaries,  Trustmark also
owns all of the stock of F. S. Corporation and First Building Corporation,  both
inactive   nonbank   Mississippi   corporations.   Neither   Trustmark  nor  its
subsidiaries have any foreign  activities.  As of September 30, 2003,  Trustmark
and its subsidiaries employed 2,365 full-time equivalent employees.

Trustmark  engages in business  through its four reportable  segments:  Consumer
Division,  Commercial Division, Investment Division and Operations Division. The
Consumer  Division  delivers  a full  range  of  banking,  investment  and  risk
management  products and services to individuals  and small  businesses  through
Trustmark's  extensive branch network.  The Commercial Division provides various
financial  products and services to corporate  and  middle-market  clients.  The
Investment  Division includes trust and fiduciary  services,  discount brokerage
services and services  for private  banking  clients.  The  Operations  Division
consists of  asset/liability  management  activities that include the investment
portfolio and the related gains/losses on sales of securities, as well as credit
risk  management,   bank  operations,   human  resources  and  the  controller's
department.

FORWARD-LOOKING STATEMENTS

Certain statements contained in Trustmark's Management's Discussion and Analysis
of  Financial  Condition  and  Results  of  Operations  are  not  statements  of
historical fact and constitute  forward-looking statements within the meaning of
the Private  Securities  Litigation  Reform Act of 1995.  These  forward-looking
statements  relate to  anticipated  future  operating and financial  performance
measures,  including net interest margin, credit quality,  business initiatives,
growth  opportunities  and  growth  rates,  among  other  things.  Words such as
"expects," "anticipates,"  "believes," "estimates" and other similar expressions
are intended to identify these forward-looking  statements. Such forward-looking
statements are subject to certain risks,  uncertainties and assumptions.  Should
one  or  more  of  these  risks  materialize,  or  should  any  such  underlying
assumptions  prove  to be  significantly  different,  actual  results  may  vary
significantly from those anticipated,  estimated,  projected or expected.  These
risks could cause actual results to differ materially from current  expectations
of Management and include the following:

o        The level of nonperforming  assets,  charge-offs and provision  expense
         can be  affected  by local,  state and  national  economic  and  market
         conditions as well as Management's  judgments regarding  collectibility
         of loans.
o        Material  changes in market  interest rates can materially  affect many
         aspects of Trustmark's  financial  condition and results of operations.
         Trustmark is exposed to the  potential  of losses  arising from adverse
         changes in market interest rates and prices which can adversely  impact
         the value of financial products, including securities, loans, deposits,
         debt and derivative financial instruments.  Factors that may affect the
         market  interest  rates include local,  regional and national  economic
         conditions;  utilization  and  effectiveness  of market  interest  rate
         contracts; and the availability of wholesale and retail funding sources
         to Trustmark. Many of these factors are outside Trustmark's control.



o        Increases  in  prepayment  speeds of mortgage  loans  resulting  from a
         declining  interest  rate  environment  will have an impact on the fair
         value of the mortgage  servicing  portfolio which can materially affect
         Trustmark's results of operations.
o        The costs and  effects  of  litigation  and of  unexpected  or  adverse
         outcomes in such litigation can materially affect  Trustmark's  results
         of operations.
o        Competition  in loan and deposit  pricing,  as well as the entry of new
         competitors   into  our   markets   through  de  novo   expansion   and
         acquisitions,  among other means,  could have an effect on  Trustmark's
         operations in our existing markets.
o        Trustmark  is subject to  regulation  by federal  banking  agencies and
         authorities  and the  Securities  and Exchange  Commission.  Changes in
         existing  regulations or the adoption of new regulations  could make it
         more costly for  Trustmark to do business or could force changes in the
         manner  Trustmark  does  business,   which  could  have  an  impact  on
         Trustmark's financial condition or results of operations.

Although   Management   believes  that  the   expectations   reflected  in  such
forward-looking  statements are  reasonable,  it can give no assurance that such
expectations will prove to be correct.  These statements are representative only
as of the date hereof,  and Trustmark  does not assume any  obligation to update
these  forward-looking  statements  or to update the reasons why actual  results
could differ from those projected in the forward-looking statements.

CRITICAL ACCOUNTING POLICIES

Trustmark's  consolidated  financial  statements are prepared in accordance with
accounting principles generally accepted in the United States of America,  which
require the use of estimates and assumptions that affect the amounts reported in
those consolidated  financial statements.  The following is a description of the
accounting policies applied by Trustmark,  which are deemed "critical." Critical
accounting  policies are defined as policies that are important to the portrayal
of  Trustmark's  financial  condition and results of operations and that require
Management's most difficult,  subjective or complex judgments.  Actual financial
results  could  differ  significantly  if different  judgments or estimates  are
applied in the application of these policies.

Allowance for Loan Losses
The allowance for loan losses is maintained at a level  Management and the Board
of Directors believe is adequate to absorb estimated  probable losses within the
loan portfolio.  A formal analysis is prepared monthly to assess the risk in the
loan  portfolio  and to determine the adequacy of the allowance for loan losses.
The analysis for loan losses  considers  any  identified  impairment  as well as
estimates which have been determined by applying  specific  allowance factors to
the commercial and consumer loan portfolios.

Commercial  loans as well as  commercial  real estate loans carry an  internally
assigned  risk  grade  based on a scale of one to ten.  An  allowance  factor is
assigned to each loan grade based on historical loan losses in addition to other
factors such as the level and trend of delinquencies,  classified and criticized
loans and nonperforming  loans.  Other factors are also taken into consideration
such as local,  regional and national economic trends,  industry and other types
of concentrations and loan loss trends that run counter to historical  averages.
All  classified  loans greater than $500 thousand are reviewed  quarterly by the
Asset Review  Department  to determine if a higher  allowance  factor  should be
applied to the loan based on a greater level of risk and probability of loss.

Consumer loans carry  allowance  factors  applied to pools of homogeneous  loans
such as direct and indirect loans,  credit cards, home equity loans, other types
of  revolving  consumer  lines of credit and  residential  mortgage  loans.  The
allowance factor applied to each pool is based on historical loan loss trends as
well  as  current  and  projected  trends  in  loan  losses.   Also  taken  into
consideration are trends in consumer  delinquencies,  consumer  bankruptcies and
the  effectiveness  of  Trustmark's  collection  function  as well  as  economic
conditions and trends referred to above.

Mortgage Servicing Rights
Mortgage  servicing  rights  are rights to service  mortgage  loans for  others,
whether the loans were acquired through purchase or loan origination.  Purchased
mortgage servicing rights are capitalized at cost. For loans originated and sold
where the servicing rights have been retained,  Trustmark  allocates the cost of
the  loan  and  the  servicing  right  based  on  their  relative  fair  values.
Impairment,  if any,  for  mortgage  servicing  rights is  recognized  through a
valuation  allowance with a corresponding  charge to noninterest expense that is
determined using estimated fair values based on specific risk characteristics of
the underlying mortgages. During the quarter ended September 30, 2003, Trustmark
expanded its risk  characteristics,  which had previously  included product type
and term, to include interest rates on the underlying mortgages.  This change in
estimate was necessary because of the recent volatile interest rate environment.
This change in estimate reduced the impairment recovery during the quarter ended



September 30, 2003, by approximately $2.7 million before tax ($1.7 million after
tax or $0.03 per share). As of September 30, 2003, mortgage servicing rights had
a gross  carrying  amount of $66.2  million with a valuation  allowance of $17.5
million.  As of year-end 2002,  mortgage  servicing  rights had a gross carrying
amount of $61.3 million with a valuation allowance of $12.5 million.

Fair Values
Determining the fair value of net assets acquired through business combinations,
including  the  recognition  of  intangible  assets,  involves a high  degree of
judgment  and  complexity.  Certain  assets,  such as loans  held for sale,  are
accounted  for at the lower of cost or fair value.  Some of these  assets do not
have readily available market quotations and require an estimation of their fair
value. Additionally,  certain recorded assets, such as goodwill and core deposit
intangibles,  are subject to periodic impairment  analysis.  As of September 30,
2003,  Trustmark  had  unamortized  goodwill  totaling  $95.9  million and other
identifiable  intangible assets subject to amortization  totaling $22.5 million.
These intangible assets are evaluated for impairment  periodically.  Impairment,
if any, for goodwill and other  identifiable  intangible assets would be charged
to noninterest expense.

BUSINESS COMBINATIONS

On August 29,  2003,  Trustmark  acquired  seven  Florida  branches  of The Banc
Corporation of Birmingham,  Alabama, in a business combination  accounted for by
the purchase method of accounting.  These  branches,  known as the Emerald Coast
Division,  serve the markets from Destin to Panama City. In connection  with the
transaction,  Trustmark  paid a $46.8  million  deposit  premium in exchange for
$232.8 million in assets and $209.2  million in deposits and other  liabilities.
Assets  consisted  of $224.3  million in loans,  $6.8  million in  premises  and
equipment and $1.7 million in other assets.  These assets and  liabilities  have
been recorded at fair value based on market conditions and risk  characteristics
at the  acquisition  date.  Loans  were  recorded  at a $1.9  million  discount,
consisting  of a discount for general  credit risk of $3.5  million  offset by a
market premium of $1.6 million. This net discount will be recognized as interest
income over the  estimated  life of the loans.  Excess  costs over  tangible net
assets acquired  totaled $49.5 million,  of which $1.7 million and $47.8 million
have been  allocated to core  deposits and goodwill,  respectively.  Trustmark's
financial statements include the results of operations for this acquisition from
the merger date. The pro forma impact of this acquisition on Trustmark's results
of operations is insignificant.

On June 28, 2002, The Bottrell Insurance Agency, Inc., a wholly-owned subsidiary
of TNB, acquired Chandler-Sampson Insurance, Inc. (CSI) in Jackson, Mississippi.
This business combination, which is not material to Trustmark, was accounted for
under the purchase  method of accounting.  The  shareholders  of CSI received $8
million in cash in  connection  with the merger.  Excess cost over  tangible net
assets  acquired  totaled $10  million,  of which $3 million and $7 million have
been   allocated  to  other   identifiable   intangible   assets  and  goodwill,
respectively. Trustmark's financial statements include the results of operations
for the CSI  acquisition  from the  merger  date.  The pro forma  impact of this
acquisition on Trustmark's results of operations is insignificant.

FINANCIAL SUMMARY HIGHLIGHTS

Basic  earnings  per  share  was $0.55  for the  third  quarter  of 2003,  which
represents a 12.2% increase compared to $0.49 for the third quarter of 2002. Net
income for the third  quarter of 2003 totaled $32.4  million,  compared to $30.1
million for the prior year period, and resulted in a return on average assets of
1.71% and a return on average equity of 19.03%. Basic earnings per share for the
nine months  ended  September  30, 2003,  was $1.49  compared to $1.47 for 2002.
Trustmark's  net income for the first nine months of 2003 totaled $88.1 million,
compared to $91.8 million for the prior year period, and resulted in a return on
average  assets of 1.61%  and a return on  average  equity of  17.58%.  Earnings
during the first quarter of 2003  included an after-tax  charge of $4.1 million,
or $0.07 per share,  associated  with  Trustmark's  Voluntary  Early  Retirement
Program.  At  September  30,  2003,  Trustmark  reported  total  loans of $5.024
billion,  total assets of $7.633  billion,  total deposits of $4.997 billion and
shareholders' equity of $682.1 million.

RESULTS OF OPERATIONS

Net Interest Income
Net interest income is the principal  component of Trustmark's income stream and
represents the difference,  or spread, between interest and fee income generated
from  earning  assets and the  interest  expense  paid on deposits  and borrowed
funds.  Fluctuations  in  interest  rates,  as well as volume and mix changes in
earning  assets  and  interest-bearing  liabilities  can  materially  impact net
interest  income.  The net interest  margin (NIM) is computed by dividing  fully
taxable  equivalent net interest income by average  interest-earning  assets and
measures  how  effectively  Trustmark  utilizes its  interest-earning  assets in
relationship  to the interest  cost of funding  them.  The  Yield/Rate  Analysis



Tables  on  pages  18 and 19  show  the  average  balances  for all  assets  and
liabilities  of Trustmark  and the interest  income or expense  associated  with
earning assets and interest-bearing  liabilities. The yields and rates have been
computed  based upon  interest  income and expense  adjusted to a fully  taxable
equivalent  (FTE) basis using a 35%  federal  marginal  tax rate for all periods
shown.  Nonaccruing  loans have been  included in the average loan  balances and
interest  collected  prior to these loans having been placed on  nonaccrual  has
been included in interest income. Loan fees included in interest associated with
the average loan balances are immaterial.

As  interest  rates  remain at  historically  low  levels,  Management  has been
challenged  to position  the balance  sheet to mitigate the  compression  of net
interest  income.  Funds  provided  from  maturities,  pay  downs  and  sales of
securities  have been used to fund  loan  growth  and  purchases  of  additional
securities to maintain  sufficient levels of earning assets.  Trustmark has also
reduced interest expense on FHLB advances by engaging in various swap agreements
beginning in the second  quarter of 2003.  Trustmark will continue to manage the
overall risk exposure present during significant movements in interest rates and
reduce  the  impact of  interest  rate  movement  on net  interest  income.  For
additional  discussion,  see Market/Interest  Rate Risk Management  beginning on
page 29.

Net  interest  income-FTE  for the  three-month  and  nine-month  periods  ended
September 30, 2003,  decreased $9.5 million,  or 12.6%,  and $21.2  million,  or
9.3%, respectively, compared to figures one year earlier. The continuing decline
in interest rates experienced  during 2003 and 2002 has impacted both assets and
liabilities;  however,  since  Trustmark's cost of funds are driven primarily by
its core deposit base, rates on  interest-bearing  liabilities have not seen the
same  magnitude of decline as earning  asset  yields.  In addition,  Trustmark's
third  quarter net  interest  margin  decreased  by $4.1  million as a result of
premium  amortization on mortgage related securities  increasing to $7.8 million
for the  quarter  compared  with $3.7  million  for the second  quarter of 2003.
Mortgages  fell to  historical  lows  in  June  2003,  prompting  a  significant
refinance boom across the country. As excess principal pay downs occurred during
the third quarter of 2003, net premium amortization accelerated. The combination
of these  factors has resulted in declines in the NIM of 103 basis points and 78
basis  points when  comparing  the  three-month  and  nine-month  periods  ended
September 30, 2003, with the same periods in 2002.



Yield/Rate Analysis Table
($ in thousands)


                                                     For the Three Months Ended September 30,
                                          ----------------------------------------------------------
                                                      2003                          2002
                                          ----------------------------  ----------------------------
                                            Average             Yield/    Average             Yield/
                                            Balance   Interest   Rate     Balance   Interest   Rate
                                          ----------  --------  ------  ----------  --------  ------
                                                                            
Assets
Interest-earning assets:
    Federal funds sold and securities
      purchased under reverse
      repurchase agreements               $   20,535  $     60   1.16%  $   35,001  $    150   1.70%
    Securities - taxable                   1,757,429    12,065   2.72%   1,391,978    21,519   6.13%
    Securities - nontaxable                  154,781     3,005   7.70%     168,603     3,346   7.87%
    Loans, including loans held for sale   4,933,252    72,049   5.79%   4,587,012    78,594   6.80%
                                          ----------  --------          ----------  --------
    Total interest-earning assets          6,865,997    87,179   5.04%   6,182,594   103,609   6.65%
Cash and due from banks                      282,239                       282,665
Other assets                                 426,066                       431,083
Allowance for loan losses                    (74,832)                      (75,993)
                                          ----------                    ----------
        Total Assets                      $7,499,470                    $6,820,349
                                          ==========                    ==========

Liabilities and Shareholders' Equity
Interest-bearing liabilities:
    Interest-bearing deposits             $3,645,418    14,167   1.54%  $3,519,645    19,634   2.21%
    Federal funds purchased and
        securities sold under
        repurchase agreements                929,774     2,269   0.97%     729,862     3,058   1.66%
    Borrowings                               918,984     4,918   2.12%     733,051     5,636   3.05%
                                          ----------  --------          ----------  --------
        Total interest-bearing liabilities 5,494,176    21,354   1.54%   4,982,558    28,328   2.26%
                                          ----------  --------          ----------  --------
Noninterest-bearing demand deposits        1,260,135                     1,089,755
Other liabilities                             69,231                        74,127
Shareholders' equity                         675,928                       673,909
                                          ----------                    ----------
        Total Liabilities and
            Shareholders' Equity          $7,499,470                    $6,820,349
                                          ==========                    ==========

        Net Interest Margin                             65,825   3.80%                75,281   4.83%

Less tax equivalent adjustment                           1,994                         2,188
                                                      --------                      --------
        Net Interest Margin per Consolidated
             Statements of Income                     $ 63,831                      $ 73,093
                                                      ========                      ========



Average  interest-earning  assets for the first nine  months of 2003 were $6.678
billion,  compared  with $6.202  billion  for the first nine months of 2002,  an
increase of $475.6 million,  or 7.7%. Without the Emerald Coast branch purchase,
the  increase  in average  interest-earning  assets for the first nine months of
2003 is $451.8,  or 7.3%.  Growth for the first nine months of 2003 is primarily
seen in average loans,  which  increased 5.5% (5.0% without  Emerald Coast) when
compared with the same period in 2002, and average  securities,  which increased
13.6% when 2003 is compared  with 2002.  However,  yields  have been  negatively
impacted by the  declining  interest  rate  environment  as the yield on average
earning  assets dropped from 6.83% during the first nine months of 2002 to 5.53%
for the same  period  in 2003,  a  decrease  of 130 basis  points.  As a result,
interest income-FTE  decreased by $40.5 million, or 12.8%, during the first nine
months of 2003 when compared with the prior year period.

Yield/Rate Analysis Table
($ in thousands)


                                                     For the Nine Months Ended September 30,
                                          ----------------------------------------------------------
                                                      2003                          2002
                                          ----------------------------  ----------------------------
                                            Average             Yield/    Average             Yield/
                                            Balance   Interest   Rate     Balance   Interest   Rate
                                          ----------  --------  ------  ----------  --------  ------
                                                                            
Assets
Interest-earning assets:
    Federal funds sold and securities
      purchased under reverse
      repurchase agreements               $   27,063  $    236   1.17%  $   27,319  $    345   1.69%
    Securities - taxable                   1,728,241    50,610   3.92%   1,485,267    70,197   6.32%
    Securities - nontaxable                  157,416     9,282   7.88%     173,925    10,380   7.98%
    Loans, including loans held for sale   4,765,364   216,009   6.06%   4,515,979   235,701   6.98%
                                          ----------  --------          ----------  --------
    Total interest-earning assets          6,678,084   276,137   5.53%   6,202,490   316,623   6.83%
Cash and due from banks                      296,854                       281,007
Other assets                                 413,530                       422,107
Allowance for loan losses                    (75,038)                      (75,580)
                                          ----------                    ----------
        Total Assets                      $7,313,430                    $6,830,024
                                          ==========                    ==========

Liabilities and Shareholders' Equity
Interest-bearing liabilities:
    Interest-bearing deposits             $3,617,219    45,882   1.70%  $3,525,957    61,432   2.33%
    Federal funds purchased and
        securities sold under
        repurchase agreements                965,417     8,096   1.12%     796,000     9,946   1.67%
    Borrowings                               788,852    14,681   2.49%     704,082    16,566   3.15%
                                          ----------  --------          ----------  --------
        Total interest-bearing liabilities 5,371,488    68,659   1.71%   5,026,039    87,944   2.34%
                                          ----------  --------          ----------  --------
Noninterest-bearing demand deposits        1,206,457                     1,063,149
Other liabilities                             65,587                        66,615
Shareholders' equity                         669,898                       674,221
                                          ----------                    ----------
        Total Liabilities and
            Shareholders' Equity          $7,313,430                    $6,830,024
                                          ==========                    ==========

        Net Interest Margin                            207,478   4.15%               228,679   4.93%

Less tax equivalent adjustment                           6,261                         6,866
                                                      --------                      --------
        Net Interest Margin per Consolidated
             Statements of Income                     $201,217                      $221,813
                                                      ========                      ========



Average  interest-bearing  liabilities  for the nine months ended  September 30,
2003 totaled  $5.371  billion,  compared with $5.026  billion for the prior year
period, an increase of $345.4 million, or 6.9%. Without the Emerald Coast branch
purchase,  the increase in average  interest-bearing  liabilities  for the first
nine  months  of 2003 is  $326.7  million,  or  6.5%.  Average  interest-bearing
deposits increased,  as well as federal funds purchased,  repurchase  agreements
and borrowings.  Although interest-bearing liabilities have increased,  interest
expense  has  continued  to  decrease  due  to  the   declining   interest  rate
environment.  The average rates on  interest-bearing  liabilities  for the first
nine months of 2003 and 2002, were 1.71% and 2.34%, respectively,  a decrease of
63 basis points.  As a result of these factors,  total interest  expense for the
first nine months of 2003 decreased $19.3 million,  or 21.9%, when compared with
figures from the prior year.

Trustmark's use of derivative financial instruments  positively impacted the NIM
in both  2002 and  2003.  Interest  rate  contracts  provided  $1.3  million  of
additional  interest  income as the floor  reached its strike price during first
half of 2002. Beginning in the second quarter of 2003, Trustmark implemented the
use of swap agreements and has reduced  interest  expense by $510 thousand.  For
additional  discussion,  see Market/ Interest Rate Risk Management  beginning on
page 29.

Provision for Loan Losses
Trustmark's  provision  for loan losses  totaled $1.8 million and $7.4  million,
respectively,  for the  three-month  and nine-month  periods ended September 30,
2003, compared with $3.0 million and $10.3 million,  respectively,  for the same
periods in 2002. As a percentage of average  loans,  the provision was 0.21% for
the first nine months of 2003 compared with 0.31% for the prior year period. The
provision for loan losses  reflects  Management's  assessment of the adequacy of
the allowance  for loan losses to absorb  probable  losses  inherent in the loan
portfolio.  The  amount of  provision  for each  period is  dependent  upon many
factors  including loan growth,  net charge-offs,  changes in the composition of
the loan  portfolio,  delinquencies,  Management's  assessment of loan portfolio
quality,  the value of  collateral  and general  economic  factors.  See further
discussion  of the  Allowance  for Loan Losses in Critical  Accounting  Policies
beginning on page 14, as well as the  discussion of Loans and Allowance for Loan
Losses beginning on page 26.

Noninterest Income
Noninterest  income (NII)  consists of revenues  generated from a broad range of
banking and financial  services.  NII totaled  $123.2 million for the first nine
months of 2003,  an increase  of $18.6  million,  or 17.8%,  from the prior year
period.  NII  represented  31.3% of total  revenues  in the  nine  months  ended
September  30,  2003,  versus  25.2% in the  first  nine  months  of  2002.  The
comparative  components of noninterest  income for the nine-month  periods ended
September  30,  2003 and 2002 are  shown in the  accompanying  table on page 21.
Noninterest  income  contributed by the Emerald Coast branch purchase during the
third quarter of 2003 is considered immaterial.

The single  largest  component  of  noninterest  income  continues to be service
charges for deposit  products and services,  which  increased  9.6% in the first
nine months of 2003 over the prior year period.  This increase was primarily the
result of increases in NSF and overdraft  charges  implemented  during the third
quarter of 2003 as well as from increased transaction volume.

Other account charges and fees totaled $21.0 million in the first nine months of
2003, a decrease of $258  thousand,  or 1.2%,  when compared with the prior year
period.  Decreasing  revenues from market driven products was the primary factor
in this decline as reductions  were seen in brokerage and advisory  services and
float-related revenues. Offsetting this decrease were increases in bankcard fees
from the repricing of merchant  discount rates and increased debit card usage by
individuals.

Insurance  commissions  were $16.5  million  for the first nine  months of 2003,
compared to $13.6  million in the first nine months of 2002, an increase of $2.9
million, or 21.2%. This growth was primarily from the Chandler Sampson Insurance
(CSI)  business  combination,  which was  completed on June 28, 2002, as well as
intensified sales efforts and increased pricing by insurance companies.

During the nine months ended September 30, 2003, mortgage servicing fees totaled
$12.7  million,  maintaining  the level  from the prior year  period.  Increased
prepayments  during  the  period  contributed  to the  decline  in the  mortgage
servicing  portfolio  when  compared  to the prior  period.  Trustmark  serviced
mortgage loans with average balances of $3.3 billion in the first nine months of
2003 and $3.6 billion in the prior year period.

Trust  service  income was $7.2  million  for the first nine  months of 2003,  a
decrease of $237 thousand when compared with the prior year period, as continued
weakness  in  capital  markets  slowed  growth in this  area.  Trustmark,  which
continues  to be one of the largest  providers of asset  management  services in
Mississippi,  held assets under  administration of $6.9 billion at September 30,
2003.



Noninterest Income
($ in thousands)
                                         Nine Months Ended
                                           September 30,
                                      ---------------------
                                         2003       2002      $ Change  % Change
                                      ---------   ---------   --------   -------
Service charges on deposit accounts   $  40,054   $  36,546   $  3,508      9.6%
Other account charges and fees           21,028      21,286       (258)    -1.2%
Insurance commissions                    16,458      13,580      2,878     21.2%
Mortgage servicing fees                  12,652      12,925       (273)    -2.1%
Trust service income                      7,176       7,413       (237)    -3.2%
Gains on sales of loans                  14,715       6,050      8,665    143.2%
Securities gains                         12,226      12,549       (323)    -2.6%
Other income:
     Changes in fair value:
         Interest rate contracts           (497)     (6,027)     5,530     91.8%
         Mortgage derivative contracts   (1,857)          -     (1,857)        -
     Other miscellaneous                  1,217         235        982    417.9%
                                      ---------   ---------   --------
           Total other income            (1,137)     (5,792)     4,655     80.4%
                                      ---------   ---------   --------
    Total Noninterest Income          $ 123,172   $ 104,557   $ 18,615     17.8%
                                      =========   =========   ========

Gains on sales of loans were $14.7  million in the nine months  ended  September
30, 2003, compared with $6.1 million in the prior year period. During the second
quarter of 2003,  Trustmark sold $63 million of its student loan portfolio for a
gain of $1.8 million. Intermittently, Trustmark sells delinquent GNMA loans from
its servicing  portfolio,  which allows Trustmark to eliminate costly collection
efforts.  Trustmark  has recorded  gains of $2.4 million from these sales in the
first nine months of 2003,  compared with $1.1 million in the prior year period.
Excluding  the impact of these  specific  transactions,  gains on sales of loans
from  secondary  marketing  activity  experienced  volume-driven  growth of $5.5
million  during the first nine months of 2003  compared  with the same period in
2002 from an  increased  volume  of  branch-originated  loans and the  continued
benefit of a falling interest rate environment.

Securities  gains totaled  $12.2  million  during the first nine months of 2003,
compared  with $12.5  million  during the first nine months of 2002.  During the
first nine months of 2003,  significant  price changes in certain  available for
sale (AFS)  portfolio  securities  enabled  Trustmark to sell  securities with a
total  fair  value  of  $290.1  million,   which  provided  the  opportunity  to
restructure  a  portion  of the  portfolio  to  reduce  price  volatility  in an
extremely low interest rate cycle. Management considers the investment portfolio
as an integral tool in the management of interest rate risk.

During the nine-month  period ended September 30, 2003,  other income was a loss
of $1.1 million,  a $4.7 million  increase from the $5.8 million loss recognized
in the prior year period.  Valuation  adjustments on  Trustmark's  interest rate
caps and floors had the  greatest  impact on other  income,  with losses of $497
thousand  and  $6.0  million  for  the  first  nine  months  of 2003  and  2002,
respectively. Although the intent of interest rate caps and floors is to provide
protection  against excessive interest rate movement over a period of years that
may be  detrimental to Trustmark's  earnings,  fair value  accounting is used to
carry  derivative  financial   instruments  with  changes  in  value  recognized
currently in earnings as other income.  These noncash charges against income may
be  reversed,  in whole or in part,  if  interest  rates  increase  prior to the
expiration of the interest rate caps currently  held by Trustmark,  which expire
in 2006.  The fair value of these  interest rate contracts was $233 thousand and
$683  thousand  at  September  30,  2003 and 2002,  respectively.  In  addition,
valuation  adjustments on fair value hedges used in conjunction with Trustmark's
mortgage  servicing  portfolio  were a loss of $1.9  million  in the first  nine
months of 2003.



Noninterest Expense
($ in thousands)
                                       Nine Months Ended
                                         September 30,
                                     ----------------------
                                       2003        2002      $ Change   % Change
                                     ---------   ---------   --------   --------
Salaries and employee benefits       $ 96,855    $ 89,030    $  7,825       8.8%
Net occupancy - premises                9,541       8,863         678       7.6%
Equipment expense                      11,104      11,357        (253)     -2.2%
Services and fees                      23,696      23,720         (24)     -0.1%
Amortization:
     Core deposits                      1,977       2,202        (225)    -10.2%
     Insurance intangible                 418         138         280     202.9%
     Mortgage servicing rights         11,621       7,760       3,861      49.8%
Impairment of mortgage
     servicing rights                   4,999       8,786      (3,787)    -43.1%
                                     --------    --------    --------
     Total amortization/impairment     19,015      18,886         129       0.7%
Loan expense                            7,155       7,314        (159)     -2.2%
Other expense                          15,023      15,015           8       0.1%
                                     --------    --------    --------
    Total Noninterest Expense        $182,389    $174,185    $  8,204       4.7%
                                     ========    ========    ========

Noninterest Expense
Trustmark's  noninterest  expense increased $8.2 million,  or 4.7%, in the first
nine months of 2003 to $182.4 million, compared with $174.2 million in the first
nine months of 2002.  This increase is primarily seen in one category,  salaries
and employee  benefits.  Noninterest  expense  contributed  by the Emerald Coast
branch purchase during the third quarter of 2003 is considered  immaterial.  The
comparative  components  of  noninterest  expense  for  the  nine  months  ended
September 30, 2003 and 2002 are shown in the accompanying table.

Salaries and employee  benefits,  the largest  category of noninterest  expense,
were $96.9  million in the first  nine  months of 2003 and $89.0  million in the
prior year  period,  an  increase of $7.8  million,  or 8.8%.  This  increase is
primarily  from  $6.3  million  of  expense  recognized  for  Trustmark's  early
retirement  program,  which  was  accepted  by 116  employees,  or  4.75% of the
workforce,  and an  increase  in  incentive  pay based on  mortgage  production.
Trustmark's full time equivalent  employees have dropped from 2,450 at September
30, 2002 to 2,365 at September 30, 2003.

Amortization/impairment  expense associated with intangible assets totaled $19.0
million for the first nine months of 2003,  compared  with $18.9  million in the
prior year period.  Amortization/impairment expense of mortgage servicing rights
is   the   primary    component   of   this    category.    For   2003,    total
amortization/impairment expense for mortgage servicing rights was $16.6 million,
or $11.6 million in  amortization  expense and $5.0 million in  impairment.  For
2002, total  amortization/impairment  expense for mortgage  servicing rights was
also $16.6 million but was broken down into $7.8 million in amortization expense
and $8.8  million  in  impairment.  While  amortization/impairment  expense  has
remained the same for both periods,  there are recent  positive trends that have
slowed the growth of both  amortization  and  impairment  of mortgage  servicing
rights.  During the third quarter of 2003, long-term mortgage rates increased to
the highest point in 2003, which slowed  prepayments of mortgage loans and had a
positive impact on the fair value of Trustmark's  mortgage servicing  portfolio.
This can be seen by a reduction in the  impairment  allowance from $22.4 million
at June 30, 2003 to $17.5 million at September 30, 2003.  While  amortization of
mortgage  servicing  rights  increased  by $3.9 million as a result of increased
refinancings  during the first nine months of 2003,  third quarter  amortization
expense  decreased to $2.9  million  from $4.7 million in the second  quarter of
2003 indicating that the expected life of the mortgage  servicing  portfolio has
lengthened  in  response  to slower  prepayment  speeds.  Future  changes in the
amortization and impairment of mortgage  servicing rights will be continue to be
closely tied to fluctuations in long-term mortgage rates.

Income Taxes
For the nine months ended September 30, 2003, Trustmark's combined effective tax
rate was  34.6%,  compared  with 35.3% for the first  nine  months of 2002.  The
decrease  in  Trustmark's  effective  tax rate is due to  immaterial  changes in
various permanent items as a percentage of pretax income.

LIQUIDITY

The liquidity position of Trustmark is monitored on a daily basis by Trustmark's
Treasury  department.   In  addition,  the  Asset/Liability   Committee  reviews
liquidity  on a regular  basis and  approves  any changes in  strategy  that are
necessary as a result of anticipated  balance sheet or cash flow changes.  Also,
on a monthly  basis,  Management  compares  Trustmark's  liquidity  position  to



established corporate policies.  Trustmark was able to improve overall liquidity
capacity  over the last  year,  as  indicated  by the  reduction  in the loan to
deposit  ratio and  reliance  on  wholesale  funding.  The  ability to  maintain
consistent cash flows from operations as well as adequate  capital also enhances
Trustmark's liquidity.

The  primary  source of  liquidity  on the asset side of the  balance  sheet are
maturities and cash flows from both loans and securities, as well as the ability
to sell certain loans and  securities.  With mortgage rates at historical  lows,
increased  prepayments on mortgage loans have also provided an additional source
of liquidity for Trustmark. Liquidity on the liability side of the balance sheet
is generated  primarily through growth in core deposits.  To provide  additional
liquidity,   Trustmark   utilizes   economical   short-term   wholesale  funding
arrangements  for federal funds purchased and securities  sold under  repurchase
agreements in both regional and national  markets.  At September 30, 2003, these
arrangements gave Trustmark  approximately $1.675 billion in borrowing capacity,
compared  with $1.482  billion as of December 31, 2002.  In addition,  Trustmark
maintains a borrowing  relationship with the FHLB, which provided $300.0 million
in short-term advances and $431.1 million in long-term advances at September 30,
2003,  compared with $107.7 million in short-term advances and $475.0 million in
long-term  advances at December 31, 2002. These advances are collateralized by a
blanket  lien  on  Trustmark's  single-family,  multi-family,  home  equity  and
commercial mortgage loans. Under the existing borrowing agreement, Trustmark has
$604.5 million  available in unused FHLB advances.  Another  borrowing source is
the Federal Reserve  Discount Window (Discount  Window).  At September 30, 2003,
Trustmark had approximately  $532 million available in borrowing capacity at the
Discount  Window from pledges of auto loans and  securities,  compared with $541
million  available at December 31, 2002. In June 2002,  Trustmark entered into a
two-year  line of credit  arrangement  enabling  borrowings  up to $50  million,
subject to certain financial covenants.  As of September 30, 2003, Trustmark had
not drawn upon this line of credit.

On April 16, 2003, Trustmark filed a registration statement on Form S-3 with the
Securities  and  Exchange  Commission  (SEC)  utilizing  a "shelf"  registration
process, which became effective May 2, 2003. Under this shelf process, Trustmark
may offer  from time to time any  combination  of  securities  described  in the
prospectus in one or more  offerings up to a total amount of $200  million.  The
securities  described in the  prospectus  include  common and  preferred  stock,
depositary  shares,  debt securities,  junior  subordinated  debt securities and
trust preferred securities. Net proceeds from the sale of the offered securities
may be used to redeem or repurchase  outstanding  securities,  repay outstanding
debt,  finance  acquisitions  of companies and other assets and provide  working
capital.

On April 9, 2002, the shareholders approved a proposal by the Board of Directors
to amend the Articles of  Incorporation  to  authorize  the issuance of up to 20
million preferred shares with no par value. The Board of Directors believes that
authorizing preferred shares for potential issuance is advisable and in the best
interests of Trustmark. The ability to issue preferred shares in the future will
provide Trustmark with additional  financial and management  flexibility.  As of
September 30, 2003, no such shares have been issued.

CAPITAL RESOURCES

At September 30, 2003,  Trustmark's  shareholders' equity was $682.1 million, an
increase of $2.6  million,  or 0.4%,  from its level at December 31, 2002.  This
increase is primarily  related to net income for the nine months ended September
30, 2003,  which totaled $88.1 million and was offset by dividends in the amount
of $29.2 million and shares repurchased at a cost of $51.2 million.

Common Stock Repurchase Program
On July 15, 2003,  the Board of Directors of Trustmark  authorized an additional
plan to  repurchase  up to 5% of common  stock,  or  approximately  3.0  million
shares,  subject to market conditions and management  discretion.  Collectively,
the capital management plans adopted by Trustmark since 1998 have authorized the
repurchase  of 21.5  million  shares of common  stock.  Pursuant to these plans,
Trustmark has repurchased  approximately 17.7 million shares for $376.8 million,
including  2.1  million  shares  during the first nine  months of 2003 for $51.2
million.  The  current  remaining  authorization  is  approximately  3.8 million
shares. On October 15, 2002, the Board of Directors of Trustmark  authorized the
transfer of $200.0 million from retained  earnings to surplus to replenish funds
used in the common stock repurchase program.

Dividends
Dividends  for the first nine months of 2003 were  $0.495 per share,  increasing
10.0% when compared with dividends of $0.45 per share for the prior-year period.
Trustmark's  dividend  payout  ratio,  which is dividends  per share  divided by
earnings per share, was 33.22% for the first nine months of 2003,  compared with
30.61% for the same period in 2002.  During October 2003, the Board of Directors
of Trustmark  announced a 15.2%  increase in its regular  quarterly  dividend to
$0.19 per share from $0.165 per share.  The Board declared the dividend  payable
on December 15 to the shareholders of record as of December 1, 2003. This action
raises  the  indicated  annual  dividend  rate to $0.76 per share from $0.66 per
share.



Regulatory Capital
($ in thousands)


                                                                  September 30, 2003
                                             -------------------------------------------------------------
                                                                                        Minimum Regulatory
                                             Actual Regulatory    Minimum Regulatory     Provision to be
                                                 Capital           Capital Required      Well Capitalized
                                             -----------------    ------------------    ------------------
                                              Amount     Ratio     Amount     Ratio      Amount      Ratio
                                             --------   ------    --------   ------     --------    ------
                                                                                  
Total  Capital  (to Risk  Weighted Assets)
   Trustmark Corporation                     $617,903   12.21%    $404,740    8.00%            -         -
   Trustmark National Bank                    580,389   11.72%     396,116    8.00%     $495,145    10.00%
Tier 1 Capital  (to Risk  Weighted Assets)
   Trustmark Corporation                     $554,524   10.96%    $202,370    4.00%            -         -
   Trustmark National Bank                    518,371   10.47%     198,058    4.00%     $297,087     6.00%
Tier 1 Capital (to Average Assets)
   Trustmark Corporation                     $554,524    7.52%    $221,269    3.00%            -         -
   Trustmark National Bank                    518,371    7.17%     217,035    3.00%     $361,726     5.00%


Regulatory Capital
Trustmark  and TNB are  subject  to  minimum  capital  requirements,  which  are
administered by various federal regulatory agencies. These capital requirements,
as defined by federal guidelines,  involve quantitative and qualitative measures
of assets,  liabilities and certain  off-balance sheet  instruments.  Failure to
meet minimum capital  requirements can initiate certain mandatory,  and possibly
additional discretionary,  actions by regulators that, if undertaken, could have
a direct material effect on the financial  statements of both Trustmark and TNB.
Trustmark aims not only to exceed the minimum  capital  standards,  but also the
well capitalized  guidelines for regulatory capital.  Management believes, as of
September  30,  2003,  that  Trustmark  and TNB have met or exceeded  all of the
minimum  capital  standards  for the  parent  company  and its  primary  banking
subsidiary as established by regulatory requirements. At September 30, 2003, the
most recent  notification  from the Office of the  Comptroller  of the  Currency
(OCC),  TNB's  primary  federal  banking  regulator,  categorized  TNB  as  well
capitalized.  To be categorized in this manner,  TNB must maintain minimum total
risk-based,  Tier 1 risk-based and Tier 1 leverage ratios (defined in applicable
regulations) as set forth in the  accompanying  table.  There are no significant
conditions  or events  that have  occurred  since  the OCC's  notification  that
Management believes have affected TNB's present classification.

EARNING ASSETS

Earning  assets  serve as the  primary  revenue  streams for  Trustmark  and are
comprised of  securities,  loans,  federal funds sold and  securities  purchased
under resale  agreements.  At September  30,  2003,  earning  assets were $6.962
billion,  or 91.20% of total assets,  compared with $6.453 billion, or 90.40% of
total  assets at December  31,  2002,  an increase of $508.6  million,  or 7.9%.
Excluding the Emerald  Coast branch  purchase,  earning  assets  totaled  $6.739
billion, an increase of $286.2 million when compared with December 31, 2002.

Securities
The  securities  portfolio  consists  primarily  of debt  securities,  which are
utilized to provide Trustmark with a quality investment alternative and a stable
source of interest income,  as well as collateral for pledges on public deposits
and repurchase agreements.  Additionally,  the securities portfolio is used as a
tool to manage risk from movements in interest rates,  to support  profitability
and to offset risks incurred by business units.  When evaluating the performance
of the securities  portfolio,  Management considers not only interest income but
also the  flexibility  and  liquidity  provided  by  changes in fair  value.  At
September 30, 2003,  Trustmark's  securities  portfolio  totaled $1.878 billion,
compared to $1.812  billion at December 31, 2002, an increase of $66.3  million,
or 3.7%.

The  securities  portfolio  is a  powerful  risk  management  tool that  enables
Management to control both the invested  balance and the duration of securities.
In  addition  to  first  quarter  2003  sales of $99.1  million  of  securities,
significant price changes in certain portfolio  securities  enabled Trustmark to
sell  securities  with a total  fair value of $189.0  million  during the second
quarter  of 2003.  Approximately  $137.8  million  of  proceeds  from the second
quarter  securities  sales were  reinvested  in  short-term  treasury and agency
securities.  Trustmark has utilized a strategy of reducing  price  volatility in
the investment portfolio as indicated by duration, which has remained relatively
stable throughout 2003. The estimated  duration of the portfolio was measured to
be 2.83 years at December  31, 2001,  1.94 years at December 31, 2002,  and 2.04
years at  September  30,  2003.  By  reducing  the  duration  of the  portfolio,



Trustmark  has  reduced  exposure to volatile  interest  rates while  increasing
liquidity  and  flexibility.  Management  intends  to keep  the  portfolio  near
historically  low duration levels while the interest rate cycle is in a stage of
lower yields.

AFS securities are carried at their estimated fair value with  unrealized  gains
or losses recognized, net of taxes, in accumulated other comprehensive income, a
separate  component  of  shareholders'   equity.  At  September  30,  2003,  AFS
securities  totaled $1.677 billion,  which  represented  89.3% of the securities
portfolio,  compared to $1.263  billion,  or 69.7%,  at December  31,  2002.  At
September 30, 2003,  unrealized gains on AFS securities of $6.0 million,  net of
$2.3 million of deferred  income taxes  payable,  were  included in  accumulated
other comprehensive  income,  compared with gains of $22.8 million,  net of $8.7
million in income  taxes,  at December 31,  2002.  At  September  30, 2003,  AFS
securities  consisted of U.S.  Treasury and Agency  securities,  obligations  of
states  and  political  subdivisions,  mortgage  related  securities,  corporate
securities and other securities,  primarily Federal Reserve Bank and FHLB stock.
During the third quarter, an allocation of corporate securities was added to AFS
securities as an investment  alternative that produces an attractive return and,
at the same time,  reduces  exposure to mortgage  related  securities while also
reducing  reliance  on issues of the  various  government  agencies.  This group
currently  consists of  well-diversified  investment grade corporate  securities
with a book value of $78.9  million and a  noncallable  average  maturity of 4.5
years.  Management  expects to continue  this  strategy as an ongoing  part of a
diversified investment approach in the securities portfolio.

Held to maturity  (HTM)  securities  are carried at amortized cost and represent
those  securities  that  Trustmark  both  intends and has the ability to hold to
maturity.  At September 30, 2003,  HTM  securities  totaled  $201.1  million and
represented  10.7% of the total  portfolio,  compared  with $549.2  million,  or
30.3%, at the end of 2002. This decline in HTM securities as a percentage of the
securities  portfolio  should  continue as  Management  utilizes  the  increased
flexibility in AFS securities to manage its investment strategy.

Management  continues to focus on asset quality as one of the strategic goals of
the  securities  portfolio,  which is evidenced by the investment of over 90% of
the portfolio in U.S. Treasury,  U.S. Government agencies  obligations and other
AAA rated securities.

Loans and Allowance for Loan Losses
Loans,  including  loans held for sale,  represented  72.2% of earning assets at
September 30, 2003, compared with 71.6% at year-end 2002. At September 30, 2003,
loans totaled $5.024 billion,  an 8.8% increase from its level of $4.617 billion
at December 31, 2002.  Excluding the Emerald Coast branch purchase,  loan growth
was $184.4  million,  or 4.0%.  Real estate  lending  continued to be positively
impacted  by  record  low  interest  rates  while  other  loan  areas  have been
negatively affected by a weakened economy.

Trustmark  makes loans in the normal  course of  business to certain  directors,
including  their  immediate  families and  companies in which they are principal
owners. Such loans are made on substantially the same terms,  including interest
rates  and  collateral,   as  those   prevailing  at  the  time  for  comparable
transactions with unrelated persons and do not involve more than the normal risk
of collectibility at the time of the transaction.

Trustmark's  lending policies have resulted in consistently sound asset quality.
One measure of asset quality in the financial  services industry is the level of
nonperforming  assets.  The  details  of  Trustmark's  nonperforming  assets  at
September 30, 2003 and December 31, 2002, are shown in the  accompanying  table.

Nonperforming Assets
($ in thousands)
                                                September 30,       December 31,
                                                    2003               2002
                                                -------------       ------------
Nonaccrual and restructured loans               $      26,857       $     31,642
Other real estate (ORE)                                 6,434              6,298
                                                -------------       ------------
     Total nonperforming assets                 $      33,291       $     37,940
                                                =============       ============

Accruing loans past due 90 days or more         $       3,283       $      2,946
                                                =============       ============

Nonperforming assets/total loans and ORE                0.66%              0.82%
                                                =============       ============



Total nonperforming  assets decreased $4.6 million, or 12.25%,  during the first
nine months of 2003.  This decrease can be  attributed to a concerted  effort to
address problem loans as well as approximately $1.4 million of loans returned to
accrual status as the result of an intensified  review of nonaccrual  loans less
than $100 thousand. The allowance coverage of nonperforming loans remains strong
at 277.3% at September 30, 2003, compared with 236.3% at December 31, 2002.

At September 30, 2003, the allowance for loan losses was $74.5 million  compared
with  $74.8  million  at  December  31,  2002.  The  allowance  for loan  losses
represented 1.48% of total loans outstanding at September 30, 2003,  compared to
1.62% at December 31, 2002.  This  decline in the  allowance as a percentage  of
total  loans is linked  primarily  to an increase  in loans  resulting  from the
Emerald Coast branch  purchase.  Loans  purchased  totaled  $224.3 million which
included a $1.9 million  discount,  consisting of a discount for general  credit
risk of $3.5 million offset by a market premium of $1.6 million. As of September
30,  2003,  Management  believes  that the  allowance  for loan losses  provides
adequate protection in regards to charge-off experience and the current level of
nonperforming assets.

Net  charge-offs  were $7.7  million,  or 0.22% of average  loans,  for the nine
months  ended  September  30, 2003,  compared  with $10.3  million,  or 0.31% of
average  loans,  for the prior year period.  This  improvement is primarily from
gross charge-offs of commercial purpose loans, which decreased $2.5 million when
comparing the first nine months of 2003 and 2002. Charge-offs for the first nine
months of 2002 were affected by five larger commercial loan losses totaling $2.6
million.

Other Earning Assets
Federal funds sold and securities purchased under reverse repurchase  agreements
were $59.5  million at  September  30, 2003,  an increase of $35.5  million when
compared with year-end 2002.  Trustmark  utilizes these products as a short-term
investment alternative whenever it has excess liquidity.

DEPOSITS AND OTHER INTEREST-BEARING LIABILITIES

Trustmark's  deposit base is its primary  source of funding and consists of core
deposits   from  the   communities   served  by  Trustmark.   Deposits   include
interest-bearing and noninterest-bearing demand accounts, savings, money market,
certificates  of deposits,  individual  retirement  accounts and brokered  CD's.
Total deposits were $4.997  billion at September 30, 2003,  compared with $4.686
billion at December 31, 2002, an increase of $310.7 million, or 6.6%.  Excluding
the Emerald Coast branch purchase,  deposits increased $100.8 million,  or 2.2%,
when compared with December 31, 2002.  Trustmark's deposit mix remains favorable
with  noninterest-bearing  deposits  representing  25.1%  of total  deposits  at
September  30,  2003,  compared  with 26.7% at year-end  2002.  During the third
quarter of 2003 Trustmark  utilized a brokered CD program to provide  additional
low cost deposit funding.  Trustmark will continue to seek deposits by expanding
its  presence in higher  growth  markets  and  evaluating  additional  wholesale
deposit funding sources.

Short-term borrowings consist of federal funds purchased,  securities sold under
repurchase agreements, FHLB borrowings and the treasury tax and loan note option
account.  Short-term borrowings totaled $1.460 billion at September 30, 2003, an
increase of $228.9  million,  compared with $1.231  billion at year-end 2002. An
increase in term federal funds  purchased and short-term  FHLB advances were the
primary  contributors  to this  growth as  Management  sought funding from lower
priced  short-term   borrowings  during  this  historically  low  interest  rate
environment

Long-term FHLB advances totaled $431.1 million at September 30, 2003, a decrease
of $43.9 million from December 31, 2002.  These totals include $250.0 million in
advances with variable rates adjusting  quarterly,  while the remaining advances
are fixed rate,  primarily  maturing from 2005 to 2006.  Beginning in the second
quarter  of  2003,  Trustmark  implemented  the use of swap  agreements  and has
effectively  converted  $125.0  million of the fixed rate  advances  to variable
rates.  For  further  discussion,   see  Market/Interest  Rate  Risk  Management
beginning on page 29.

OTHER LIABILITIES

At December 31, 2002,  Trustmark's  pension plan was  underfunded,  requiring an
accrual for minimum pension liability of $5.7 million. During 2003, the Board of
Directors  approved  tax-deductible  contributions  to the  pension  plan in the
amount of $10.0 million.  At the plan's next measurement date, October 31, 2003,
Management  anticipates  that  the  underfunded  position  of the  plan  will be
eliminated based on recent  improvements in investment returns combined with the
contributions of $10 million.




CONTINGENCIES

Trustmark  and its  subsidiaries  are parties to lawsuits  and other claims that
arise in the ordinary  course of business.  Some of the lawsuits  assert  claims
related  to the  lending,  collection,  servicing,  investment,  trust and other
business  activities;  and some of the lawsuits  allege  substantial  claims for
damages.  The cases are being  vigorously  contested.  In the regular  course of
business,  Management evaluates estimated losses or costs related to litigation,
and provision is made for anticipated losses whenever  Management  believes that
such losses are probable and can be reasonably  estimated.  In recent years, the
legal  environment in Mississippi  has been  considered by many to be adverse to
business  interests  in regards to the overall  treatment  of tort and  contract
litigation  as well as the  award of  punitive  damages.  However,  tort  reform
legislation that became effective  January 1, 2003, may reduce the likelihood of
unexpected sizable awards. At the present time,  Management  believes,  based on
the  advice  of legal  counsel  and  Management's  evaluation,  that  the  final
resolution  of pending  legal  proceedings  will not have a  material  impact on
Trustmark's consolidated financial position or results of operations.

ASSET/LIABILITY MANAGEMENT

Overview
Market risk is the risk of loss arising from  adverse  changes in market  prices
and rates.  Trustmark has risk management policies to monitor and limit exposure
to market risk.  Trustmark's market risk is comprised primarily of interest rate
risk created by core banking  activities.  Interest rate risk is the risk to net
interest  income  represented by the impact of higher or lower  interest  rates.
Management continually develops and applies cost-effective  strategies to manage
these  risks.  The  Asset/Liability  Committee  sets  the  day-to-day  operating
guidelines,  approves  strategies  affecting net interest income and coordinates
activities  within policy limits  established  by the Board of Directors.  A key
objective of the asset/liability  management program is to quantify, monitor and
manage interest rate risk and to assist  Management in maintaining  stability in
the net interest margin under varying interest rate environments.

Market/Interest Rate Risk Management
The  primary  purpose  in  managing  interest  rate  risk is to  invest  capital
effectively and preserve the value created by the core banking business. This is
accomplished  through the development and  implementation  of lending,  funding,
pricing  and  hedging  strategies  designed  to  maximize  net  interest  income
performance  under  varying  interest  rate  environments  subject  to  specific
liquidity and interest rate risk guidelines.

Management  has  continued to maintain a balance sheet  position that  mitigates
adverse  effects  of  rising  interest  rates.  Modeling  static  balances  from
September  30, 2003,  it is estimated  that net  interest  income may  increase,
possibly as much as 4.33%, in a one-year, shocked, up 200 basis point rate shift
scenario,  compared to a base case, flat rate scenario for the same time period.
This is a slight  improvement  in  exposure  to rising  rates when  compared  to
December 31, 2002. In a shocked,  down 200 basis point rate shift scenario,  net
income may decline  from the base case as much as 12.82% in a one-year  horizon.
In this  scenario,  Trustmark uses the approach of shifting rates the greater of
200 basis points or the amount that implies a near zero rate for each  category.
Management  cannot  provide any assurance  about the actual effect of changes in
interest rates on net interest income. The estimates provided do not include the
effects of possible  strategic  changes in the  balances  of various  assets and
liabilities  throughout  the  remainder  of 2003.  Management  will  continue to
monitor the balance sheet as balances change and maintain a proactive  stance to
manage interest rate risk.

The primary tool  utilized by the  Asset/Liability  Committee  is a  third-party
modeling  system,  which  is  widely  accepted  in  the  financial  institutions
industry. This system provides information used to evaluate exposure to interest
rate risk,  project  earnings and manage  balance  sheet  growth.  This modeling
system utilizes the following  scenarios in order to give Management a method of
evaluating  Trustmark's interest rate, basis and prepayment risk under different
conditions:

o        Rate shocked scenarios of up-and-down 100, 200 and 300 basis points.
o        Yield curve twist of +/- 2 standard  deviations of the change in spread
         of the three-month Treasury bill and the 10-year Treasury note yields.
o        Basis  risk  scenarios  where  federal  funds/LIBOR  spread  widens and
         tightens  to the high and low  spread  determined  by using 2  standard
         deviations.
o        Prepayment  risk  scenarios  where  projected   prepayment   speeds  in
         up-and-down  200 basis  point rate  scenarios  are  compared to current
         projected prepayment speeds.

A static gap analysis is a tool used mainly for interest rate risk  measurement,
in which the balance sheet amounts as of a certain date are stratified  based on
repricing  frequency.  The assets and  liabilities  repricing  in a certain time



frame are then compared to determine the gap between assets and  liabilities for
that  period.  If assets are greater than  liabilities  for the  specified  time
period,  then  the  balance  sheet  is  said to be in an  asset  gap,  or  asset
sensitive,  position.  Management feels that this method for analyzing  interest
rate sensitivity does not provide a complete picture of Trustmark's  exposure to
interest rate changes  since it  illustrates a  point-in-time  measurement  and,
therefore,  does not  incorporate  the effects of future balance sheet trends or
varying interest rate scenarios.  This analysis is a relatively  straightforward
tool that is helpful in highlighting  significant  short-term  repricing  volume
mismatches.  Management's assumptions related to the prepayment of certain loans
and  securities,  as  well  as  the  maturity  for  rate  sensitive  assets  and
liabilities,  are utilized for sensitivity static gap analysis.  Three-month gap
analysis  projected at September  30,  2003,  reflected a liability  gap of $199
million  compared  with an asset gap of $177 million at June 30, 2003.  One-year
gap  analysis  projected at  September  30, 2003,  reflected an asset gap of $47
million  compared  with an asset gap of $548  million  at June 30,  2003.  These
changes can be traced to a reduction in mortgage  work-in-process  when compared
with June 30, 2003 as well as Management's decision to reinvest FHLB advances in
floating  rather than fixed rates,  thus lowering the overall cost and providing
relief to the compression of net interest income.

As part of Trustmark's  risk management  strategy in the mortgage  banking area,
various  derivative  instruments  such as  interest  rate lock  commitments  and
forward  sales  contracts  are utilized.  Forward  contracts  are  agreements to
purchase  or sell  securities  or other  money  market  instruments  at a future
specified  date at a specified  price or yield.  Trustmark's  obligations  under
forward contracts  consist of commitments to deliver mortgage loans,  originated
and/or purchased, in the secondary market at a future date. Effective January 1,
2003,  Trustmark has  redesignated  these  derivative  instruments as fair value
hedges as permitted by Statement of Financial  Accounting  Standards  (SFAS) No.
133,  "Accounting  for  Derivatives  Instruments  and  Hedging  Activities,"  as
amended.  Under SFAS No. 133, changes in the values of derivatives designated as
fair value hedges are  recognized  in  earnings.  In this case  Trustmark  would
recognize  changes  in the  values of the  designated  derivatives  in  earnings
simultaneously with changes in the values of the designated hedged loans. To the
extent changes in the values of the derivatives are 100% effective in offsetting
changes  in the  values of  hedged  loans,  the fair  value  adjustments  on the
derivatives and hedged loans would offset one another. In contrast,  Trustmark's
previous  designation  of these  derivatives  as cash flow  hedges  resulted  in
changes in value being recognized in accumulated other comprehensive income, net
of taxes,  a component of  Shareholders'  Equity,  and in  earnings.  Management
anticipates  that this change will help  mitigate  the  potential  for  earnings
volatility related to the valuation of these hedging instruments in the future.

Trustmark continued a risk controlling strategy utilizing caps and floors, which
may be further  implemented  over time. As of September 30, 2003,  Trustmark was
not utilizing  interest  rate floors but had interest  rate cap  contracts  with
notional  amounts  totaling  $300 million,  which mature in 2006.  The intent of
utilizing these financial  instruments is to reduce the risk associated with the
effects of significant  movements in interest rates. Caps and floors,  which are
not  designated as hedging  instruments  for  accounting  purposes,  are options
linked to a notional  principal amount and an underlying  indexed interest rate.
Exposure to loss on these  options will  increase or decrease as interest  rates
fluctuate.

Another  tool used for interest  rate risk  management  is interest  rate swaps.
Interest rate swaps are  derivative  contracts  under which two parties agree to
make interest  payments on a notional  principal  amount. In a generic swap, one
party pays a fixed interest rate and receives a floating interest rate while the
other party  receives a fixed  interest rate and pays a floating  interest rate.
During April 2003,  Trustmark initiated four separate interest rate swaps with a
total notional  principal  amount of $100 million.  During July 2003,  Trustmark
added  another  interest  rate  swap  with a  notional  principal  amount of $25
million.  These swaps are designated as fair value hedges.  Trustmark  initiated
these  swaps to  mitigate  the  effects of further  changes in the fair value of
specific  noncallable,  nonprepayable,  fixed  rate  advances  from  the FHLB by
agreeing to pay a floating  interest rate tied to LIBOR.  The swap contracts are
tied to the maturity of five separate FHLB  advances  maturing  between 2005 and
2006.

RECENT PRONOUNCEMENTS

In May 2003,  the Financial  Accounting  Standards  Board (FASB) issued SFAS No.
150, "Accounting for Certain Financial  Instruments with Characteristics of both
Liabilities and Equity." This statement  establishes standards for how an issuer
classifies and measures certain financial  instruments with  characteristics  of
both  liabilities  and equity.  The  statement  applies to three  categories  of
freestanding   financial   instruments:   1)  certain   mandatorily   redeemable
instruments,  2) instruments with repurchase obligations and 3) instruments with
obligations to issue a variable  number of shares.  The statement  requires that
previously  issued  instruments that fall within the scope of the statement must



be reclassified as liabilities,  and subsequent  changes in the  measurements of
the  instruments  treated  as  liabilities  must  flow  through  to  the  income
statement.  For  public  companies,  this  statement  became  effective  for all
freestanding  financial instruments entered into or modified after May 31, 2003.
Otherwise it became  effective  at the  beginning  of the first  interim  period
beginning after June 15, 2003. Currently,  Trustmark does not have any financial
instruments within the scope of this statement.

In April 2003,  the FASB issued SFAS No. 149,  "Amendment  of  Statement  133 on
Derivative  Instruments  and  Hedging  Activities."  This  statement  amends and
clarifies  financial  accounting  and  reporting  for  derivative   instruments,
including   certain   derivative   instruments   embedded  in  other   contracts
(collectively  referred to as derivatives) and for hedging activities under SFAS
No. 133,  "Accounting for Derivative  Instruments and Hedging  Activities." This
statement is effective  for  contracts  entered into or modified  after June 30,
2003, and for hedging relationships  designated after June 30, 2003. The effects
of this  statement did not have a material  impact on  Trustmark's  consolidated
financial position or results of operations upon adoption on June 30, 2003.

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The information required by this item is included in "Market/Interest  Rate Risk
Management"  (pages 29-30) of "Item 2.  Management's  Discussion and Analysis of
Financial Condition and Results of Operations."

ITEM 4.  CONTROLS AND PROCEDURES

For the period ended September 30, 2003,  Trustmark  evaluated the effectiveness
of the design and operation of its disclosure  controls and procedures  pursuant
to Rules 13a-14 and 15d-14 under the Securities Exchange Act of 1934, as amended
(Exchange  Act),  under  the  supervision  and  with  the  participation  of its
management,  including  the  Chief  Executive  Officer  and the  Treasurer  (the
Principal  Financial Officer).  Based upon this evaluation,  the Chief Executive
Officer and the Treasurer concluded that, as of September 30, 2003,  Trustmark's
disclosure  controls and  procedures  were  adequate to ensure that  information
required to be disclosed  by  Trustmark in the reports  filed or submitted by it
under the Exchange Act is recorded,  processed,  summarized and reported  within
the time periods specified in the rules and forms of the Securities and Exchange
Commission. Subsequent to this review, there have been no significant changes in
Trustmark's  internal  controls  or in other  factors  that could  significantly
affect these controls.




PART II.  OTHER INFORMATION

ITEM 1.   LEGAL PROCEEDINGS

There were no material  developments  for the quarter ended  September 30, 2003,
other than those disclosed in the Notes to Consolidated Financial Statements and
Management's Discussion and Analysis of this Form 10-Q.

ITEM 6.   EXHIBITS AND REPORTS ON FORM 8-K

A.        Exhibits

          The  exhibits  listed in the Exhibit  Index are filed  herewith or are
          incorporated herein by reference.

B.        Reports on Form 8-K

          1.   On July 15, 2003, Trustmark filed a report on Form 8-K announcing
               its  financial  results for the period ended June 30, 2003.
          2.   On  September  2,  2003,  Trustmark  filed a  report  on Form 8-K
               announcing that the purchase of Florida's  Emerald Coast branches
               of The Bank  had  been  completed  as of the  close  of  business
               Friday, August 29, 2003.



                                   SIGNATURES

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

                              TRUSTMARK CORPORATION


BY:     /s/ Richard G. Hickson                      BY:     /s/ Zach L. Wasson
        ----------------------                              --------------------
        Richard G. Hickson                                  Zach L. Wasson
        Chairman of the Board, President                    Treasurer (Principal
        & Chief Executive Officer                           Financial Officer)

DATE:   November 10, 2003                           DATE:   November 10, 2003



                                  EXHIBIT INDEX


31-a Certification  by Chief  Executive  Officer  pursuant to Section 302 of the
     Sarbanes-Oxley Act of 2002.

31-b Certification  by Chief  Financial  Officer  pursuant to Section 302 of the
     Sarbanes-Oxley Act of 2002.

32-a Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350.

32-b Certification by Chief Financial Officer pursuant to 18 U.S.C. ss. 1350.


All other exhibits are omitted,  as they are inapplicable or not required by the
related instructions.