Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement of Heritage Oaks Bancorp on Form S-8 of our report dated March 4, 2016 relating to the consolidated financial statements and effectiveness of internal control over financial reporting appearing in the Annual Report on Form 10-K of Heritage Oaks Bancorp for the year ended December 31, 2015.
| /s/ Crowe Horwath LLP |
| Crowe Horwath LLP |
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Sacramento, California |
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March 10, 2016 |
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