<DOCUMENT>
<TYPE>EX-32
<SEQUENCE>5
<FILENAME>cfo_322.txt
<DESCRIPTION>CFO 32.2
<TEXT>


                                                                 EXHIBIT 32.2


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In connection  with the  Quarterly  Report of 1st Source  Corporation  (1st
Source) on Form 10-Q for the quarterly period ended June 30, 2006, as filed with
the Securities  and Exchange  Commission on the date hereof (the  "Report"),  I,
Larry E. Lentych, Chief Financial Officer of the Company,  certify,  pursuant to
18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that to my knowledge:


     (1)  The Report fully complies with the  requirements  of sections 13(a) or
          15(d) of the Securities and Exchange Act of 1934; and

     (2)  The  information  contained  in the  Report  fairly  presents,  in all
          material respects,  the financial  condition and results of operations
          of 1st Source.



By:


/s/LARRY E. LENTYCH
-------------------
Larry E. Lentych
Chief Financial Officer
July 27, 2006


</TEXT>
</DOCUMENT>
