TriCo Bancshares (TCBK) 8-K Trico Bancshares Announces Quarterly Cash Dividend

Exhibit 99.1

TRICO BANCSHARES ANNOUNCES QUARTERLY CASH DIVIDEND

PRESS RELEASE   FOR IMMEDIATE RELEASE Contact: Thomas J. Reddish   Executive Vice President & CFO   (530) 898-0300

CHICO, Calif. – (March 3, 2016) – The Board of Directors of TriCo Bancshares (NASDAQ: TCBK), parent company of Tri Counties Bank, declared a quarterly cash dividend of $0.15 (fifteen cents) per share on March 3, 2016. The dividend is payable on March 31, 2016 to holders of record as of March 16, 2016.

Established in 1975, Tri Counties Bank is a wholly-owned subsidiary of TriCo Bancshares (NASDAQ: TCBK) headquartered in Chico, California, providing a unique brand of customerService with Solutions available in traditional stand-alone and in-store bank branches in communities throughout Northern and Central California. Tri Counties Bank provides an extensive and competitive breadth of consumer, small business and commercial banking financial services, along with convenient around-the-clock ATM, online and mobile banking access. Brokerage services are provided by the Bank’s investment services through affiliation with Raymond James Financial Services, Inc. Visitwww.TriCountiesBank.com to learn more.