California State Prison, Corcoran (COR) is a male-only state prison located in the city of Corcoran, in Kings County, California. Also known as Corcoran State Prison, CSP-C, CSP-COR, CSP-Corcoran, and Corcoran I, it should not be confused with the newer California Substance Abuse Treatment Facility and State Prison, Corcoran (Corcoran II) located just south of the facility.