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|EXHIBIT 32
          SECTION 906 CERTIFICATION BY DWIGHT O. SEEGMILLER
          In connection with the quarterly report of Hills Bancorporation (the Company) on Form 10-Q
            for the quarter ended March 31, 2006 as filed with the Securities and Exchange Commission on the
            date hereof (the Report), I, Dwight O. Seegmiller, Director, President and Chief Executive
            Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §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 (15 U.S.C.

            78m or 78o(d)); and
          2.             The information contained

            in the Report fairly presents, in all material respects, the financial condition and results of
            operations
        of the Company.
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|Date: May 9, 2006 |  | By: /s/ Dwight O. Seegmiller                                         
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|                  |  | Dwight O. Seegmiller, Director, President and Chief Executive Officer

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|SECTION 906 CERTIFICATION BY JAMES G. PRATT
In connection with the quarterly report of Hills Bancorporation (the Company) on Form 10-Q
for the quarter ended March 31, 2006 as filed with the Securities and Exchange Commission on the
date hereof (the Report), I, James G. Pratt, Treasurer and Chief Accounting Officer of
the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §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 (15 U.S.C.

78m or 78o(d)); and
2.             The information contained

in the Report fairly presents, in all material respects, the financial condition and results of
operations
of the Company.
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|Date: May 9, 2006 |  | By: /s/ James G. Pratt                                           
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|                  |  | James G. Pratt, Secretary, Treasurer and Chief Accounting Officer

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