Exhibit 99



                              HILLS BANCORPORATION
                          CERTIFICATION OF 10-Q FILING
                                 JUNE 30, 2002

                                 CERTIFICATION




Pursuant to the requirements of Section 906 of the  Sarbanes-Oxley  Act of 2002,
Dwight O. Seegmiller and James G. Pratt certify that:

1.   Form 10-Q for the quarterly  period ended June 30, 2002 fully complies with
     the requirements of Sections 13(a) or 15(d) of the 1934 Act, and

2.   The information  contained in Form 10-Q for the quarterly period ended June
     30,  2002 fairly  presents,  in all  material  respects,  the  registrant's
     financial condition and results of operations of the registrant.


August 14, 2002                       /s/ Dwight O. Seegmiller
- ------------------------              ------------------------------------------
Date                                  Dwight O. Seegmiller, President
                                      (Duly authorized office of the registrant)



August 14, 2002                       /s/ James G. Pratt
- ------------------------              ------------------------------------------
Date                                  James G. Pratt, Treasurer
                                      (Principal Financial Officer)


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