Ex. 32-b
                                CERTIFICATION BY
                             CHIEF FINANCIAL OFFICER
                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                         PURSUANT TO 18 U.S.C. ss. 1350


Pursuant to 18 U.S.C.  Section 1350 and in connection with the quarterly  report
on Form 10-Q of Trustmark  Corporation  for the period ended March 31, 2004,  as
filed with the  Securities  and  Exchange  Commission  on the date  hereof  (the
"Report"),  the  undersigned,  Zach L. Wasson,  Treasurer  (Principal  Financial
Officer),  hereby  certifies the Report fully complies with the  requirements of
Section  13(a)  or  15(d)  of the  Securities  Act of 1934  and the  information
contained in the Report fairly presents, in all material respects, the financial
condition and results of operations of Trustmark Corporation.


BY:   /s/ Zach L. Wasson
      ------------------
      Zach L. Wasson
      Treasurer (Principal Financial Officer)


DATE: May 7, 2004