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,  as adopted  pursuant to Section 906 of the
Sarbanes-Oxley  Act of 2002, and in connection with the quarterly report on Form
10-Q of Trustmark  Corporation for the period ended September 30, 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:    November 9, 2004