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We consent to the incorporation by reference in the registration statements (No. 333-736006, No. 33-2657, No. 333-182464, and No. 333-182465) on Form S-8 and No. 333-214840 on Form S-3D of Hills Bancorporation of our reports dated March 5, 2024, with respect to the consolidated balance sheets of Hills Bancorporation as of December 31, 2023 and 2022, and the related consolidated statements of income, comprehensive income, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2023, and the related notes, and the effectiveness of internal control over financial reporting as of December 31, 2023, which reports appear in the December 31, 2023, Annual Report on Form 10-K of Hills Bancorporation.