FORM 10-Q

                       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, 1998

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) 354-5111

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 the number of shares outstanding of each of the registrant's classes of
common stock, as of November 10, 1998.

         Title                                                       Outstanding
Common stock, no par value                                            72,773,616






                          PART I. FINANCIAL INFORMATION
                          ITEM 1. FINANCIAL STATEMENTS

                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEETS
                       ($ IN THOUSANDS EXCEPT SHARE DATA)

                                                      (Unaudited)
                                                     September 30,  December 31,
                                                         1998          1997*
                                                     ============   ===========
Assets
Cash and due from banks (noninterest-bearing)        $    299,849   $   292,555
Federal funds sold and securities purchased
  under reverse repurchase agreements                     273,656        70,786
Trading account securities                                     51            99
Securities available for sale (at fair value)             654,138       610,471
Securities held to maturity (fair value:
  $1,250,843-1998; $1,407,167-1997)                     1,225,464     1,396,928
Loans                                                   3,579,321     2,983,655
  Less:  Allowance for loan losses                         66,150        64,100
                                                     ------------   -----------
  Net loans                                             3,513,171     2,919,555
Premises and equipment                                     70,710        67,958
Intangible assets                                          49,111        40,085
Other assets                                              146,526       146,721
                                                     ------------   -----------
  Total Assets                                       $  6,232,676   $ 5,545,158
                                                     ============   ===========


Liabilities
Deposits:
  Noninterest-bearing                                $    885,236   $   898,679
  Interest-bearing                                      2,996,660     2,920,270
                                                     ------------   -----------
    Total deposits                                      3,881,896     3,818,949
Federal funds purchased                                   620,033       283,468
Securities sold under repurchase agreements               924,352       665,232
Short term borrowings                                     111,746       140,058
Other liabilities                                          49,280        43,826
                                                     ------------   -----------
  Total Liabilities                                     5,587,307     4,951,533

Commitments and Contingencies

Stockholders' Equity 
Common stock, no par value:
  Authorized:  250,000,000 shares
  Issued and outstanding: 72,773,616 shares - 1998;
    72,740,708 - 1997                                      15,161        15,154
Surplus                                                   246,430       246,768
Retained earnings                                         364,200       320,901
Net unrealized gain on securities available for
  sale, net of tax                                         19,578        10,802
                                                     ------------   -----------
  Total Stockholders' Equity                              645,369       593,625
                                                     ------------   -----------
  Total Liabilities and Stockholders' Equity         $  6,232,676   $ 5,545,158
                                                     ============   ===========




 * Derived from audited financial statements.

   See notes to consolidated financial statements.



                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                        CONSOLIDATED STATEMENTS OF INCOME
                       ($ IN THOUSANDS EXCEPT SHARE DATA)
                                   (Unaudited)




                                                           Three Months Ended     Nine Months Ended
                                                              September 30,         September 30,
                                                           ===================   ===================
                                                             1998       1997       1998       1997
                                                           ========   ========   ========   ========
Interest Income                                               
                                                                                     
Interest and fees on loans                                 $ 74,964   $ 62,472   $212,947   $182,261
Interest on securities:
  Taxable interest income                                    29,158     29,845     89,233     89,871
  Interest income exempt from federal income taxes            1,573      1,420      4,506      4,439
Interest on federal funds sold and securities
  purchased under reverse repurchase agreements               1,484        378      2,919      3,176
                                                           --------   --------   --------   --------
  Total Interest Income                                     107,179     94,115    309,605    279,747
Interest Expense
Interest on deposits                                         31,483     30,481     94,394     90,286
Interest on federal funds purchased and securities
  sold under repurchase agreements                           17,546     11,825     42,688     34,687
Other interest expense                                        1,131        926      4,787      3,328
                                                           --------   --------   --------   --------
  Total Interest Expense                                     50,160     43,232    141,869    128,301
                                                           --------   --------   --------   --------
Net Interest Income                                          57,019     50,883    167,736    151,446
Provision for loan losses                                     2,221      1,013      5,188      3,278
                                                           --------   --------   --------   --------
Net Interest Income After
  Provision for Loan Losses                                  54,798     49,870    162,548    148,168
Noninterest Income
Service charges on deposit accounts                           7,816      6,464     22,203     18,525
Other account charges, fees and commissions                   6,571      5,165     18,907     15,110
Mortgage servicing fees                                       3,343      3,357     10,165      9,855
Trust service income                                          3,515      3,060     10,237      8,941
Securities gains                                                 10         41         40        451
Other income                                                  1,290        493      3,608      2,471
                                                           --------   --------   --------   --------
  Total Noninterest Income                                   22,545     18,580     65,160     55,353
Noninterest Expenses
Salaries and employee benefits                               22,388     21,566     66,757     63,840
Net occupancy - premises                                      2,692      2,459      7,468      7,258
Equipment expenses                                            2,982      3,231      9,305      9,691
Services and fees                                             6,758      5,237     20,362     16,587
Amortization of intangible assets                             2,635      2,357      7,584      7,060
Other expense                                                 7,210      7,522     20,752     20,006
                                                           --------   --------   --------   --------
  Total Noninterest Expenses                                 44,665     42,372    132,228    124,442
                                                           --------   --------   --------   --------
Income Before Income Taxes                                   32,678     26,078     95,480     79,079
Income taxes                                                 11,501      8,324     34,172     26,108
                                                           --------   --------   --------   --------
Net Income                                                 $ 21,177   $ 17,754   $ 61,308   $ 52,971
                                                           ========   ========   ========   ========

Earnings Per Share
     Basic                                                 $   0.29   $   0.24   $   0.84   $   0.73
                                                           ========   ========   ========   ========

     Diluted                                               $   0.29   $   0.24   $   0.84   $   0.73
                                                           ========   ========   ========   ========




See notes to consolidated financial statements.




                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                ($ IN THOUSANDS)
                                   (Unaudited)





                                                                         Nine Months Ended 
                                                                           September 30,
                                                                      ======================
                                                                         1998         1997
                                                                      =========    =========
Operating Activities
                                                                                   
Net income                                                            $  61,308    $  52,971
Adjustments  to  reconcile   net  income  to  net  cash
  provided  by  operating activities:
    Provision for loan losses                                             5,188        3,278
    Provision for depreciation and amortization                          14,711       14,386
    Net accretion of securities                                            (540)         (27)
    Securities gains                                                        (40)        (451)
    Increase in intangible assets                                       (10,056)      (6,011)
    Decrease in deferred income taxes                                     1,483        1,294
    Increase in other assets                                             (8,793)      (8,044)
    Increase (decrease) in other liabilities                              4,945       (9,778)
    Other                                                                (2,443)      (1,457)
                                                                      ---------    ---------
Net cash provided by operating activities                                65,763       46,161
                                                                      ---------    ---------

Investing Activities
Proceeds from calls and maturities of securities available for sale      50,508       85,144
Proceeds from calls and maturities of securities held to maturity       288,954      176,288
Proceeds from sales of securities available for sale                    174,440       64,139
Purchases of securities available for sale                             (224,155)    (254,925)
Purchases of securities held to maturity                               (109,346)    (111,859)
Net (increase) decrease in federal funds sold and securities
  purchased under reverse repurchase agreements                        (202,870)      66,912
Net increase in loans                                                  (552,977)    (191,618)
Purchases of premises and equipment                                      (6,662)     (11,536)
Proceeds from sales of premises and equipment                                94          334
Proceeds from sales of other real estate                                  2,339        1,554
Net assets assumed in immaterial pooling of interests
  business combination                                                                13,348
Cash equivalents of acquired bank, net of cash paid                      13,035       (1,319)
                                                                      ---------    ---------
Net cash used by investing activities                                  (566,640)    (163,538)
                                                                      ---------    ---------

Financing Activities
Net (decrease) increase in deposits                                     (25,153)      89,121
Net increase (decrease) in federal funds purchased and
  securities sold under repurchase agreements                           595,685      (60,621)
Net (decrease) increase in short term borrowings                        (28,312)      64,416
Common stock purchased and retired                                      (16,040)      (4,457)
Cash dividends paid                                                     (18,009)     (15,278)
                                                                      ---------    ---------
Net cash provided by financing activities                               508,171       73,181
                                                                      ---------    ---------
Increase (decrease) in cash and cash equivalents                          7,294      (44,196)
Cash and cash equivalents at beginning of year                          292,555      337,090
                                                                      ---------    ---------
Cash and cash equivalents at end of period                            $ 299,849    $ 292,894
                                                                      =========    =========



See notes to consolidated financial statements.



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 generally  accepted  accounting  principles 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 generally accepted accounting  principles 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.  Certain  reclassifications  have been
made to prior period  amounts to conform with  current  year  presentation.  The
notes  included  herein  should  be read in  conjunction  with the  notes to the
consolidated  financial  statements  included in  Trustmark  Corporation's  (the
Corporation) 1997 annual report on Form 10-K.
     The  consolidated   financial   statements  include  the  accounts  of  the
Corporation, its wholly-owned subsidiary, Trustmark National Bank (the Bank) and
the Bank's wholly-owned  subsidiaries,  Trustmark  Financial Services,  Inc. and
Trustmark  Insurance  Agency,  Inc.  All  intercompany  profits,   balances  and
transactions have been eliminated.

NOTE 2 - BUSINESS COMBINATIONS
     On March 13, 1998, Smith County Bank (SCB) in Taylorsville, Mississippi was
merged  in a  business  combination  accounted  for by the  purchase  method  of
accounting.  At the merger date, SCB had approximately $44 million in net loans,
$98 million in total assets and $88 million in total deposits.  The stockholders
of SCB received 725,000 shares of Trustmark  Corporation  common stock (adjusted
for the  two-for-one  stock split  discussed in Note 5) in  connection  with the
merger.  Excess cost over net assets acquired  equaled $6.7 million and has been
allocated to core deposit  intangibles.  SCB's results of operations,  which are
not material,  have been included in the  financial  statements  from the merger
date.

NOTE 3 - LOANS
     The  following  table  summarizes  the activity in the  allowance  for loan
losses  for the nine  month  periods  ended  September  30,  1998 and 1997 ($ in
thousands):

                                                            1998          1997
                                                         --------      --------
Balance at beginning of year                             $ 64,100      $ 63,000
Provision charged to expense                                5,188         3,278
Loans charged off                                          (8,502)       (6,658)
Recoveries                                                  4,064         3,136
Allowance applicable to loans of acquired bank              1,300         1,344
                                                         --------      --------
Balance at end of period                                 $ 66,150      $ 64,100
                                                         ========      ========

     At September 30, 1998, the carrying value of commercial loans considered to
be impaired under Statement of Financial Accounting Standards (SFAS) No. 114 was
$10.0 million,  all of which were on a nonaccrual  basis.  As a result of direct
write-downs,   the  specific  allowance  related  to  these  impaired  loans  is
immaterial.  For the three months ended September 30, 1998, the average carrying
value of  impaired  loans was  approximately  $11.6  million,  and the amount of
interest  income  recognized on these loans was  immaterial.  Loans on which the
accrual of interest has been  discontinued  or reduced  totaled $12.9 million at
September 30, 1998. The foregone interest associated with such loans is
immaterial.



NOTE 4 - CONTINGENCIES
     The  Corporation  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  of  Trustmark  National  Bank;  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,  that the final resolution of pending legal proceedings
will not have a  material  impact on the  Corporation's  consolidated  financial
position or results of operations.

NOTE 5 - STOCKHOLDERS' EQUITY
     On February 10, 1998, the Corporation  announced a two-for-one stock split.
The additional  shares were issued on March 30, 1998, to  shareholders of record
on March 20,  1998.  All per share  data and number of common  shares  have been
restated to reflect the effect of this stock split.
     At the Corporation's annual shareholders' meeting, which was held April 14,
1998, an amendment to the Articles of Incorporation was approved  increasing the
number of  authorized  common  shares  from 100  million  to 250  million.  This
increase will allow the  Corporation  to issue  additional  shares to consummate
business  combinations,  implement  stock  splits  or  dividends  or  for  other
corporate purposes.
     Basic and diluted EPS were  computed by dividing net income by the weighted
average shares of common stock outstanding.  For the nine months ended September
30, 1998 and 1997,  weighted  average  shares were  72,935,602  and  72,750,306,
respectively.  For the three months ended September 30, 1998 and 1997,  weighted
average shares were 72,773,616 and 72,704,446, respectively.

NOTE 6 - COMPREHENSIVE INCOME
     In June  1997,  the FASB  issued  SFAS No.  130,  "Reporting  Comprehensive
Income."  This  statement  establishes  standards  for  reporting and display of
comprehensive income and its components (revenues,  expenses,  gains and losses)
in a full set of general  purpose  financial  statements  and is  effective  for
fiscal years  beginning  after December 15, 1997. The  Corporation  adopted this
statement  effective  January 1, 1998.  The purpose of  reporting  comprehensive
income is to report a measure of all changes in equity of the  Corporation  that
result from  recognized  transactions  and other  economic  events of the period
other than transactions  with owners in their capacity as owners.  The following
table reflects the calculation of comprehensive income for the Corporation ($ in
thousands):




                                                      Three Months               Nine Months
                                                   Ended September 30,       Ended September 30,
                                                   -------------------       -------------------
                                                     1998       1997           1998        1997
                                                   -------     -------       --------    -------
                                                                                 
Net income                                         $21,177     $17,754       $61,308     $52,971
Unrealized holding gains/(losses)
  arising during the period on
  securities available for sale, net of  tax          (795)      3,937         1,488       6,028
                                                   -------     -------       -------     -------
Comprehensive Income                               $20,382     $21,691       $62,796     $58,999
                                                   =======     =======       =======     =======




NOTE 7 - STATEMENTS OF CASH FLOWS
     During the nine months ended  September 30, 1998 and 1997, the  Corporation
paid  approximately  $36.1 million and $24.7  million,  respectively,  in income
taxes. During the nine months ended September 30, 1998 and 1997, the Corporation
paid $145.2  million and $123.2  million,  respectively,  in interest on deposit
liabilities and other  borrowings.  For the nine months ended September 30, 1998
and 1997,  noncash  transfers  from  loans to  foreclosed  properties  were $1.1
million and $1.7 million, respectively.

NOTE 8 - RECENT PRONOUNCEMENTS
     On June 15, 1998, the Financial  Accounting  Standards  Board (FASB) issued
SFAS No. 133,  "Accounting for Derivative  Instruments and Hedging  Activities."
This Statement  establishes  accounting  and reporting  standards for derivative
instruments,   including  certain  derivative   instruments  embedded  in  other
contracts  and hedging  activities.  It requires  that an entity  recognize  all
derivatives  as either  assets or  liabilities  in the  statement  of  financial
position  and  measure  those  instruments  at fair  value.  This  Statement  is
effective for all fiscal quarters of fiscal years beginning after June 15, 1999.
The impact on the  financial  position and to the  financial  statements  of the
Corporation has not been evaluated.
     In  October  1998,   the  FASB  issued  SFAS  No.  134,   "Accounting   for
Mortgage-Backed  Securities  Retained After the Securitization of Mortgage Loans
Held for Sale by a Mortgage  Banking  Enterprise."  This  Statement  amends FASB
Statement No. 65, "Accounting for Certain Mortgage Banking  Activities" and will
affect accounting and reporting standards for classifying  securitized  mortgage
loans held for sale.  This  Statement  shall be  effective  for the first fiscal
quarter  beginning  after December 15, 1998. The adoption of this Statement will
not  have  a  material  impact  on  the  Corporation's   consolidated  financial
statements.



MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
AND RESULTS OF OPERATIONS
     The following  provides a narrative  discussion and analysis of significant
changes in the Corporation's results of operations and financial condition. This
discussion  should  be read  in  conjunction  with  the  consolidated  financial
statements included elsewhere in this report.
     The Securities Litigation Reform Act evidences Congress' determination that
the  disclosure of  forward-looking  information  is desirable for investors and
encourages  such  disclosure  by  providing  a safe  harbor for  forward-looking
statements by Management. Certain of the information included in this discussion
contains   forward-looking   statements  and  information   that  are  based  on
Management's  belief as well as certain  assumptions  made by,  and  information
currently  available to Management.  Specifically,  Management's  Discussion and
Analysis   of   Financial   Condition   and  Results  of   Operations   contains
forward-looking  statements  with respect to the adequacy of the  allowance  for
loan losses;  the effect of legal  proceedings  on the  Corporation's  financial
condition, results of operations and liquidity; and Year 2000 compliance issues.
Although Management of the Corporation 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. 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  materially  from  those
anticipated, estimated, projected or expected.

FINANCIAL SUMMARY
     Trustmark  Corporation reported net income for the third quarter of 1998 of
$21.2  million  compared  with $17.8  million for the third  quarter of 1997, an
increase of 19.3%. Basic and diluted earnings were $0.29 per share for the third
quarter of 1998 compared with $0.24 per share for the third quarter of 1997. Net
income for the nine  months  ended  September  30,  1998 was $61.3  million,  an
increase of 15.7% when compared with $53.0 million  earned during the first nine
months of 1997.  Basic and diluted  earnings  per share were $0.84 per share for
the first nine months of 1998  compared  with $0.73 per share for the first nine
months of 1997. Trustmark's  performance for the nine months ended September 30,
1998 resulted in a return on average assets of 1.42%, a return on average equity
of 13.44% and an efficiency ratio of 55.63%.
     Total assets at September 30, 1998  increased  12.4% over December 31, 1997
to reach $6.2 billion, while net loans increased 20.3% to reach $3.5 billion and
total deposits increased 1.7% to $3.9 billion.  Stockholders'  equity was $645.4
million at September  30, 1998, an 8.7% increase when compared with December 31,
1997.

BUSINESS COMBINATIONS
     Acquisitions  have been,  and are expected to continue to be, a significant
part of the Corporation's  growth strategy and have enhanced the market position
of the  Corporation  in the  state of  Mississippi.  Management  is  continually
evaluating  new market  areas in which to expand and to  provide  its  financial
services.
     On March 13, 1998, Smith County Bank (SCB) in Taylorsville, Mississippi was
merged  in a  business  combination  accounted  for by the  purchase  method  of
accounting.  At the merger date, SCB had approximately $44 million in net loans,
$98 million in total assets and $88 million in total deposits.  The stockholders
of SCB received  approximately  725,000 shares of the Corporation's common stock
(adjusted for the two-for-one stock split) in connection with the merger. Excess
cost over net assets  acquired  equaled $6.7  million and has been  allocated to
core deposit intangibles.  SCB's results of operations,  which are not material,
have been included in the financial statements from the merger date.

ASSET/LIABILITY MANAGEMENT
Overview
     Market  risk is the risk of loss  arising  from  adverse  changes in market
prices and rates.  The Corporation  has risk management  policies to monitor and
limit  exposure to market  risk.  The  Corporation's  market  risk is  comprised



primarily of interest rate risk created by its core banking  activities in loans
and deposits.  Management  continually develops and applies effective strategies
to manage these risks. In asset/liability management activities, policies are in
place  that are  designed  to manage  interest  rate risk.  The  Asset/Liability
Committee,  consisting  of executive  officers,  sets the  day-to-day  operating
guidelines and approves strategies affecting net interest income and coordinates
activities  within policy limits  established by the Board of Directors based on
the  Corporation's  tolerance  for risk. A key  objective  of the  Corporation's
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  Corporation's  primary  purpose in managing  interest  rate risk is to
effectively  invest the  Corporation's  capital and to manage and  preserve  the
value  created  by its  core  banking  business.  The  Corporation  utilizes  an
investment  portfolio as well as  off-balance  sheet  instruments  to manage the
interest  rate risk  naturally  created  through its  business  activities.  The
primary tool utilized by the Asset/Liability Committee is a modeling system that
provides  information  which is used to evaluate the  Corporation's  exposure to
interest rate risk, to project  earnings and manage  balance sheet growth.  This
modeling system incorporates  Management's  expectations  regarding loan demand,
deposit product preferences, price and funds availability,  prepayment rates and
the rate  differential  between  financial  instruments.  Interest  rate  change
scenarios  of plus and minus 100,  200 and 300 basis points are run in the model
against the  Corporation's  balance  sheet and the results of these  simulations
show the impact on future results of operations.  The Asset/Liability Committees
of both the Bank's executive  officers and the Corporation's  Board of Directors
meet monthly to evaluate current and projected  interest rate risk positions and
their adherence to the Corporation's  policy limits and review its balance sheet
composition.
     Static gap analysis is another tool that can be utilized for interest  rate
risk measurement.  Management  realizes that this method for analyzing  interest
sensitivity does not provide a complete picture of the Corporation'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,
changes in prepayment  speeds or varying interest rate scenarios.  This analysis
is a  relatively  straightforward  tool which is useful  mainly in  highlighting
significant short-term repricing volume mismatches.  Utilized in the table below
are  Management's  assumptions  relating  to  prepayments  of certain  loans and
securities as well as the maturity for rate  sensitive  assets and  liabilities.
The following  table  presents the  Corporation's  rate  sensitivity  static gap
analysis at September 30, 1998 ($ in thousands):

                                                   Interest Sensitive Within
                                                   -------------------------
                                                     90 days       One Year
                                                   ----------     ----------
Total rate sensitive assets                        $1,659,015     $2,572,221
Total rate sensitive liabilities                    2,100,979      3,215,839
                                                   ----------     ----------
Net gap                                            $ (441,964)    $ (643,618)
                                                   ==========     ==========

     The analysis  indicates that the  Corporation is in a negative gap position
over the next three and  twelve  month  periods.  Management  believes  there is
adequate  flexibility  to  alter  the  overall  rate  sensitivity  structure  as
necessary to minimize exposure to changes in interest rates,  should they occur.

Derivative Financial Instruments
     Derivatives  are used to hedge  interest  rate  exposures by modifying  the
interest  rate  characteristics  of  specific  balance  sheet  instruments.  The
Corporation  regularly  enters into certain  derivative  financial  instruments,
namely forward  interest rate contracts,  as part of its normal  asset/liability
management  strategies.  At September 30, 1998,  the  Corporation's  obligations
under forward contracts consist of commitments to sell mortgage loans originated



and/or purchased in the secondary market at a future date. These obligations are
entered into by the  Corporation  in order to fix the interest  rate at which it
can offer mortgage loans to its customers or purchase  mortgage loans from other
financial  institutions.  Realized gains and losses on forward contracts and the
sale of mortgage loans in the secondary market are recorded upon the sale of the
mortgages and included in other income. At September 30, 1998, the Corporation's
exposure under commitments to sell mortgages was immaterial.

Liquidity
     The  Corporation's  goal is to maintain an adequate  liquidity  position to
compensate for expected and unexpected balance sheet fluctuations and to provide
funds for growth. The Asset/Liability  Committee establishes guidelines by which
they monitor the current liquidity position to ensure adequate funding capacity.
This is  accomplished  through  the  active  management  of both the  asset  and
liability sides of the balance sheet and by maintaining  accessibility to local,
regional  and  national  funding  sources.  The ability to  maintain  consistent
earnings and adequate capital also enhances the Corporation's liquidity.

EARNING ASSETS
     The percentage of earning assets to total assets measures the effectiveness
of  Management's  efforts to invest  available funds into the most efficient and
profitable uses.  Earning assets at September 30, 1998, were $5.733 billion,  or
91.98% of total assets,  compared with $5.062 billion, or 91.29% of total assets
for December 31, 1997, an increase of $671 million,  or 13.25%, and is primarily
the result of growth in the loan  portfolio as well as the business  combination
completed during the first quarter of 1998.

Loans
     Loans, the largest category of earning assets for the Corporation,  produce
the highest level of interest  income.  At September 30, 1998,  total loans were
$3.579  billion,  an  increase  of $595.7  million,  or 19.96%,  from the $2.984
billion  reported at December 31, 1997. At September 30, 1998,  loans were 62.4%
of the  Corporation's  earning assets  compared with 58.9% at December 31, 1997.
The growth in the loan  portfolio  can be  attributed  primarily to increases in
loans  secured by real  estate.  Within the real estate  category,  increases in
loans  secured by  residential  properties  can be  attributed  to a  Management
strategy to retain 10 to 15 year conventional mortgages in its portfolio and the
active  promotion of its equity line product during the second and third quarter
of 1998. In addition,  at September 30, 1998,  approximately $41 million of loan
growth is the result of the SCB business combination.
     The Corporation's  lending policies have produced consistently strong asset
quality.  A measure of asset quality in the financial  institutions  industry is
the level of nonperforming  assets.  Nonperforming assets include  nonperforming
loans, consisting of nonaccrual and restructured loans, and other real estate as
reflected in the following table ($ in thousands):

                                                    September 30,       Dec. 31,
                                                 ------------------     -------
                                                   1998       1997        1997
                                                 -------    -------     -------
Loans accounted for on a nonaccrual basis        $12,885    $13,617     $14,242
Other real estate (ORE)                            1,284      2,873       2,340
Accruing loans past due 90 days or more            2,371      2,180       2,570
                                                 -------    -------     -------
Total nonperforming assets and
  loans past due 90 days or more                 $16,540    $18,670     $19,152
                                                 =======    =======     =======

Nonperforming assets/Total loans plus ORE          0.40%      0.58%       0.56%
                                                 =======    =======      ======

     As indicated in the table above, the  Corporation's  level of nonperforming
assets and loans past due 90 days or more at September  30,  1998,  is down over
the  past  year.  At  September  30,  1998,  the  Corporation's   percentage  of
nonperforming  assets to total loans plus other real estate continues to be less
than its peer group.  The Corporation has controlled its level of  nonperforming
assets by maintaining strong underwriting  standards,  consistent credit reviews



and a prudent loan charge-off  policy. At September 30, 1998,  Management is not
aware of any  additional  credits,  other than  those  identified  above,  where
serious doubts as to the repayment of principal and interest exist.
     The allowance for loan losses is maintained at a level that  Management and
the Board of Directors  believe is adequate to absorb  estimated losses inherent
in the loan portfolio,  plus estimated losses  associated with off-balance sheet
credit  instruments  such as letters of credit and unfunded  lines of credit.  A
formal review is prepared quarterly to assess the risk in the loan portfolio and
to determine  the adequacy of the  allowance  for loan losses.  This analysis is
presented to the Credit Policy Committee with subsequent  review and approval by
the Board of Directors. At September 30, 1998, the allowance for loan losses was
$66.2 million, representing 1.85% of total loans outstanding. This compares with
an allowance for loan losses of $64.1 million at December 31, 1997, representing
2.15% of total loans outstanding.  The increase of $2.1 million is primarily the
result of the SCB business combination.
     Net charge-offs  were $4.438 million or 0.18% of average loans for the nine
months  ended  September  30,  1998,  an increase of $916  thousand  from $3.522
million  or 0.17% of  average  loans for the  first  nine  months  of 1997.  The
Corporation's  percentage of net charge-offs to average loans for 1998 continues
to compare favorably to its peer group.

Securities
     The  securities  portfolio  is  utilized  to  provide a quality  investment
alternative  for  available  funds and a stable  source of interest  income.  At
September 30, 1998,  securities  available for sale (AFS), with a carrying value
of $654.1 million,  and securities held to maturity (HTM), with a carrying value
of $1.225  billion,  combined to create a securities  portfolio  totaling $1.879
billion, a decrease of $128 million or 6.37% from December 31, 1997.
     Management  continues to stress asset quality as one of the strategic goals
of the  securities  portfolio  which can be seen by the investment of 86% of the
portfolio in U. S. Treasury and U. S. Government agency  obligations.  The REMIC
and CMO issues held in the securities portfolio are 100% U. S. Government agency
issues.   In  order  to  avoid  excessive   yield   volatility  from  unexpected
prepayments,  the  Corporation's  normal  practice  is  to  purchase  investment
securities at or near par value to reduce the risk of premium write-offs.
     At  September  30,  1998,  securities  AFS had a  carrying  value of $654.1
million and an amortized cost of $622.4  million.  This compares with a carrying
value of $610.5  million and an amortized cost of $593.0 million at December 31,
1997.  At  September  30, 1998,  gross  unrealized  gains were $31.8  million on
securities AFS while gross unrealized losses were $109 thousand.  Net unrealized
gains are shown as a separate  component of stockholders'  equity,  net of taxes
and equaled $19.6 million at September 30, 1998.
     The carrying  value of securities  HTM was $1.225  billion at September 30,
1998  compared  with  $1.397  billion  at year end 1997.  The fair  value of HTM
securities at September 30, 1998 was $1.251 billion compared with $1.407 billion
at year end 1997. Gross unrealized gains were $25.8 million and gross unrealized
losses were $439 thousand on securities HTM at September 30, 1998.

Other Earning Assets
     Federal  funds  sold and  securities  purchased  under  reverse  repurchase
agreements  were $273.7  million at September  30,  1998,  an increase of $202.9
million  when  compared  with  year end 1997.  The  Corporation  utilizes  these
products  as  a  short-term  investment   alternative  whenever  it  has  excess
liquidity.

DEPOSITS AND OTHER INTEREST-BEARING LIABILITIES
     The  Corporation's  deposit  base is its  primary  source  of  funding  and
consists of  deposits  from the  communities  served by the  Corporation.  Total
deposits  were  $3.882  billion at  September  30,  1998,  an  increase of $62.9
million,  or 1.65%,  over year end 1997.  This  increase was the result of $77.4
million  contributed  by the SCB merger,  offset by a $14.5  million  decline in
total deposits.



     Overall,  the net  change  in other  interest  bearing  liabilities  was an
increase of  approximately  $567.4 million.  Federal funds purchased were $620.0
million at September 30, 1998, an increase of $336.6  million when compared with
year end 1997.  Securities  sold  under  repurchase  agreements  totaled  $924.4
million at September 30, 1998, an increase of $259.1 million from year end 1997.
The primary  reason for the  variation in these two  categories  is an increased
need for liquidity due to more rapid growth in loans than growth in deposits. At
September  30,  1998,  the  balance of other  short term  borrowings  was $111.7
million compared with $140.0 million at December 31, 1997.

CONTINGENCIES
     The  Corporation  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  of  Trustmark  National  Bank;  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,  that the final resolution of pending legal proceedings
will not have a  material  impact on the  Corporation's  consolidated  financial
position or results of operations.

STOCKHOLDERS' EQUITY
     The regulatory capital ratios for the Corporation and the Bank are shown in
the following  table compared to the minimum ratios that are currently  required
under capital adequacy  standards imposed by regulators.  At September 30, 1998,
the  Corporation  and the Bank meet all capital  adequacy  requirements to which
they  are  subject.  The  most  recent  notification  from  the  Office  of  the
Comptroller of the Currency categorized the Bank as well capitalized. Actual and
minimum,  regulatory  capital  amounts and ratios at September 30, 1998, for the
Corporation and the Bank are as follows ($ in thousands):



                                                      Actual           Minimum Regulatory
                                                Regulatory Capital      Capital Required
                                               -------------------     ------------------
                                                Amount      Ratio       Amount      Ratio
                                               --------     ------     --------     -----
Total Capital (to Risk Weighted Assets)
                                                                          
     Trustmark Corporation                     $656,866     17.64%     $297,956     8.00%
     Trustmark National Bank                   $646,160     17.39%     $297,190     8.00%
Tier 1 Capital (to Risk Weighted Assets)
     Trustmark Corporation                     $610,068     16.38%     $148,978     4.00%
     Trustmark National Bank                   $599,481     16.14%     $148,595     4.00%
Tier 1 Capital (to Average Assets)
     Trustmark Corporation                     $610,068     10.21%     $239,106     4.00%
     Trustmark National Bank                   $599,481     10.05%     $238,698     4.00%



     At September 30, 1998, the Corporation had  stockholders'  equity of $645.4
million, which contained a net unrealized gain on securities available for sale,
net of taxes, of $19.6 million.  This compares to total stockholders'  equity at
December 31, 1997 of $593.6  million,  which  contained a net unrealized gain on
securities  available for sale, net of taxes,  of $10.8  million.  Approximately
$15.7  million of capital was added during the first quarter of 1998 from shares
issued in connection with the SCB business combination.



     In connection  with the SCB merger,  the  Corporation's  Board of Directors
authorized  the  Corporation  to  repurchase  shares of its common stock in open
market  transactions in order to acquire all or part of the common shares issued
in  connection  with  this  merger.  During  the  second  quarter  of 1998,  the
Corporation  purchased  and retired  692,472  shares of its common stock in open
market transactions.
     Based on a dividend payout ratio of 29.76%, the Corporation retained 70.24%
of its  earnings  during the first nine months of 1998,  generating  an internal
capital  growth  rate of 9.44%.  Dividends  for the third  quarter  of 1998 were
$0.0825 per share  compared  with $0.07 per share for the third quarter of 1997.
Book value for the  Corporation's  common stock was $8.87 at September 30, 1998,
compared with the closing market price of $15.50.

NET INTEREST INCOME
     Net interest  income (NII) is interest  income  generated by earning assets
reduced by the interest expense of funding those assets and is the Corporation's
principal  source of  income.  Consequently,  changes  in the mix and  volume of
earning assets and  interest-bearing  liabilities,  and their related yields and
interest rates, can have a significant impact on earnings.
     For the nine months ended  September 30, 1998, the  Corporation's  level of
NII  increased by $16.3  million,  or 10.8%,  when  compared  with the same time
period in 1997.  This increase comes primarily from more rapid growth of average
earning   assets,   primarily   in  the  loan   portfolio,   when   compared  to
interest-bearing  liabilities  during a period  of  relatively  stable  interest
rates.  For the quarter ending September 30, 1998, net interest income increased
12.1% when compared to the same period in 1997.
     For the first nine months of 1998,  average  earning assets  increased 9.9%
when compared to the same period in 1997.  This was driven by an 18.9%  increase
in average loans.  When this growth was combined with relatively stable interest
rates,  the yield on average  earning assets  increased by six basis points when
compared  to the same  time  period in 1997.  This  combination  resulted  in an
increase in total interest income of $29.9 million, or 10.7%, when comparing the
first nine months of 1998 with 1997.
     Average  interest-bearing  liabilities  grew by 9.6%  during the first nine
months of 1998.  Interest-bearing deposits experienced growth of 4.6% during the
same period while average funds purchased and securities  sold under  repurchase
agreements increased 20.3%. In addition, the Corporation's increased utilization
of other  short term  borrowings  during  the first  nine  months of 1998 led to
substantial growth in this category when comparing 1998 and 1997. As a result of
these factors,  total interest expense increased by $13.6 million when comparing
the first nine months of 1998 to 1997.
     The table below  illustrates  the changes in the net  interest  margin as a
percentage of average earning assets for the periods shown:

                                                       Nine Months Ended
                                                         September 30,
                                                       -----------------
                                                        1998        1997
                                                       -----       -----
Yield on interest-earning assets-FTE                   7.93%       7.87%
Rate on interest-bearing liabilities                   3.58%       3.56%
                                                       -----       -----
Net interest margin-FTE                                4.35%       4.31%
                                                       =====       =====

     The fully  taxable  equivalent  (FTE) yield on  tax-exempt  income has been
computed  based on a 35% federal  marginal tax rate for all periods  shown.  The
Corporation  will continue its interest rate risk policies to manage exposure to
changes in interest rates.

PROVISION FOR LOAN LOSSES
     The  provision  for loan losses  reflects  Management's  assessment  of the
adequacy of the allowance for loan losses to absorb  inherent  write-offs in the
loan portfolio.  Factors considered in the assessment include composition of the
loan  portfolio,  historical  credit loss  experience,  current and  anticipated
economic conditions and changes in borrowers'  financial  positions.  During the
first nine  months of 1998,  the  Corporation's  provision  for loan  losses was
$5.188 million, which  represents  0.21% of average loans, compared  with $3.278



million, 0.16% of average  loans,  during  the  same  time  period in 1997.  The
Corporation's  ratio of the provision for loan losses to average loans continues
to compare favorably to the peer group.

NONINTEREST INCOME
     The Corporation  stresses the importance of growth in noninterest income as
one of its key long-term strategies.  The Corporation recently implemented a new
customer focused sales culture which has produced  improved service delivery and
sales of products at all customer  points of contact.  As a result,  noninterest
income  has been  favorably  impacted.  During  the first  nine  months of 1998,
noninterest  income,  excluding  securities gains,  increased $10.2 million,  or
18.6%,  when  compared  with the first nine months of 1997.  Noninterest  income
increased  21.6% during the quarter ended  September 30, 1998,  when compared to
the same period in 1997.
     The largest  single  category of  noninterest  income,  service  charges on
deposit accounts,  grew by $3.7 million, or 19.9%, when the first nine months of
1998 are compared with 1997.  Service  charge income during the third quarter of
1998 was  positively  impacted by the  Corporation's  promotion  of its umbrella
checking  account,  which offers customers the choice of a fixed monthly service
fee combined with a number of other services at no extra charge.
     Other account  charges,  fees and commissions,  increased $3.8 million,  or
25.1%,  when the  first  nine  months  of 1998 are  compared  with  1997.  Major
contributors  to the growth in this  category  during  these  periods  were fees
generated from discount brokerage services,  credit cards, ATMs and a variety of
other fee producing products and services.
     Mortgage  servicing fees grew by 3.20% when comparing the first nine months
of 1998 with 1997 as the  amount  of  mortgages  serviced  increased  11.0%.  At
September  30, 1998,  the  Corporation  serviced  approximately  $3.4 billion in
mortgages.
     Trust service income  increased by 14.5% when the first nine months of 1998
are compared with 1997 as the Bank continued to be one of the largest  providers
of asset management services in Mississippi. At September 30, 1998, the Bank had
trust accounts with assets under  management  with fair values of  approximately
$5.3 billion.
     Gross  securities gains of $40 thousand were realized during the first nine
months of 1998 due to sales of  securities  classified  as  available  for sale.
There were no sales of  securities  classified  as held to  maturity  during the
first nine months of 1998.

NONINTEREST EXPENSE
     Another  long-term  strategy of the  Corporation  is to continue to provide
quality  service to  customers  within the context of economic  discipline.  The
efficiency ratio, a key indicator of the control of noninterest  expense and the
growth of  noninterest  income,  was 55.63%  for the first  nine  months of 1998
compared  with  59.08%  for the first  nine  months of 1997.  Total  noninterest
expense increased $7.8 million, or 6.3%, when comparing the first nine months of
1998 with the same time  period in 1997.  For the third  quarter of 1998,  total
noninterest expense increased 5.4% when compared to the same period in 1997.
     Salaries and employee  benefits continue to comprise the largest portion of
noninterest  expenses and increased  $2.9 million,  or 4.6%,  when comparing the
first  nine  months of 1998  with  1997.  The  number  of  full-time  equivalent
employees  totaled 2,199 at September 30, 1998;  2,309 at December 31, 1997; and
2,287 at September 30, 1997.
     The  Corporation  has been  successful in controlling its net occupancy and
equipment  expenses  as  evidenced  by  the  relatively  flat  growth  in  these
categories when comparing the first nine months of 1998 to the first nine months



of 1997. This control has been achieved in spite of the  Corporation  completing
three business combinations since the beginning of 1997.
     Services and fees  increased  $3.8 million  when  comparing  the first nine
months  of 1998 with the same time  period  in 1997.  Increased  costs for legal
fees,  communications  expense  and  expenses  related  to Year 2000  compliance
contributed to this increase.
     Management  will  continue  to  monitor  closely  the level of  noninterest
expenses as part of its effort to continue to improve the  profitability  of the
Corporation.

INCOME TAXES
     For the nine months ended  September 30, 1998, the  Corporation's  combined
effective  tax rate was 35.8%  compared  with 33.0% for the first nine months of
1997. The increase in the Corporation's effective tax rate is due primarily to a
decrease  in  tax-exempt  interest  and  various  other  permanent  items  as  a
percentage of pre-tax income.

RECENT PRONOUNCEMENTS
     On June 15, 1998, the FASB issued SFAS No. 133,  "Accounting for Derivative
Instruments and Hedging Activities." This Statement  establishes  accounting and
reporting  standards for derivative  instruments,  including certain  derivative
instruments embedded in other contracts and hedging activities. It requires that
an entity  recognize  all  derivatives  as either assets or  liabilities  in the
statement of financial  position and measure  those  instruments  at fair value.
This  Statement is effective for all fiscal  quarters of fiscal years  beginning
after June 15, 1999.  The impact on the financial  position and to the financial
statements of the Corporation has not been evaluated.
     In  October  1998,   the  FASB  issued  SFAS  No.  134,   "Accounting   for
Mortgage-Backed  Securities  Retained After the Securitization of Mortgage Loans
Held for Sale by a Mortgage  Banking  Enterprise."  This  Statement  amends FASB
Statement No. 65, "Accounting for Certain Mortgage Banking  Activities" and will
affect accounting and reporting standards for classifying  securitized  mortgage
loans held for sale.  The  adoption of this  Statement  will not have a material
impact on the Corporation's consolidated financial statements.

YEAR 2000 COMPLIANCE
     The Corporation  has established a task-force to review all  computer-based
systems and  applications and develop an action plan to ensure that its computer
and information  systems,  as well as equipment on which the Corporation relies,
will  function  properly in the year 2000.  This process  involves  modifying or
replacing certain hardware and software maintained by the Corporation as well as
communicating  with  external  service  providers  to  ensure  they  are  taking
appropriate action to remedy any Year 2000 issues. The Corporation  contemplates
having  substantially all systems and applications  changed for the year 2000 by
December 31, 1998 with final testing to take place during 1999. The  Corporation
is  taking  steps  to  review  Year  2000  readiness  on the  part of  important
suppliers.  There  can be no  guarantee,  however,  that  the  systems  of other
companies on which the Corporation relies will be timely converted. Accordingly,
the  Corporation  is assessing the extent to which its operations are vulnerable
to other  companies'  systems and developing  contingency  plans to minimize the
impact on operations should those  organizations fail to remediate their systems
properly.  Based on our current evaluation of outside companies, the Corporation
does not expect the  contingency  plans to be  implemented.  Based upon  current
information,  Management  presently  believes that specific costs related to the
Year 2000 systems  issues will not have a material  impact on the  Corporation's
consolidated financial statements.



Part II.  OTHER INFORMATION

Item 1.  Legal Proceedings
     There were no material  developments  for the quarter  ended  September 30,
1998,  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 
     1.   The following  exhibits are included herein:

          (27) Financial Data Schedule

     There were no reports on Form 8-K filed during the quarter ended  September
30, 1998.







                                   SIGNATURES

     Pursuant  to the  requirements  of Section  13 or 15 (d) of the  Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

                              TRUSTMARK CORPORATION


BY:   /s/ Frank R. Day                            BY:   /s/ Richard G. Hickson
      -----------------------------                    -------------------------
      Frank R. Day                                      Richard G. Hickson
      Chairman of the Board                             President & Chief
                                                        Executive Officer

DATE: November 10, 1998                           DATE: November 10, 1998


BY:   /s/ Gerard R. Host
      -----------------------------
      Gerard R. Host
      Treasurer
      (Chief Financial and
      Accounting Officer)

DATE: November 10, 1998



                                  EXHIBIT INDEX


Exhibit Number                                Description           
- --------------                          -----------------------
    27                                  Financial Data Schedule