Tri Counties Bank is a financial institution headquartered in Chico, California. It is a subsidiary of holding company TriCo Bancshares (NASDAQ: TCBK) headquartered in Chico, California. The first branch opened in 1975 to serve the Butte, Glenn, and Tehama counties, from which the bank received its name. As of 2021, the bank has over 75 branches in California, over 37,000 ATMs nationwide, and total assets of approximately $8 billion.