Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Post-Effective Amendment No. 7 to Registration Statement No. 333-166015 of Heritage Oaks Bancorp on Form S-1 of our report dated March 6, 2015 on the consolidated financial statements and effectiveness of internal control over financial reporting of Heritage Oaks Bancorp appearing in the 2014 Form 10-K of Heritage Oaks Bancorp, and to the reference to us under the heading “Experts” in the prospectus.
| /s/ Crowe Horwath LLP |
Sacramento, California
July 2, 2015