Exhibit 32.1

                             CERTIFICATE 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 Annual Report of Casey's General Stores, Inc. (the
"Company") on Form 10-K for the fiscal year ended April 30, 2003 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
Ronald M. Lamb, Chief Executive 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:

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

     (2)  The information contained in the Report fairly presents, in all
          material respects, the financial condition and result of operations of
          the Company.


                                                     /s/ Ronald M. Lamb
                                                 -------------------------------
                                                        Ronald M. Lamb
                                                    Chief Executive Officer

July 28, 2003