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We consent to the incorporation by reference in this Amendment No. 1 to the Registration Statement on Form S-4 (No. 333-260365) of TriCo Bancshares (the “Company”) of our report dated March 1, 2021, relating to the Company’s consolidated financial statements (which report expresses an unqualified opinion and includes an explanatory paragraph relating to the change in the method of accounting for credit losses) and the effectiveness of internal control over financial reporting of the Company appearing in the Annual Report on Form 10-K of the Company for the year ended December 31, 2020, filed with the Securities and Exchange Commission, and to the reference to our firm under the heading “Experts” in the joint proxy statement/prospectus, which is part of this Registration Statement.