Corcoran is a city in Kings County, California, United States. Corcoran is located south-southeast of Hanford, at an elevation of 207 feet (63 m). It is part of the Hanford–Corcoran Metropolitan Statistical Area. The population was 24,813 (2010 census), up from 14,458 (2000 census). The California Department of Finance estimated that Corcoran's population was 22,515 on January 1, 2014.
Corcoran is most famous as the site of the California State Prison, Corcoran, home to a number of notable inmates such as Charles Manson, and Juan Corona. The California Substance Abuse Treatment Facility and State Prison, Corcoran is a separate facility that is also located in the city. As of December 31. 2013, the two prisons held a combined total of 9,821 inmates. Inmates are counted as city residents by both the United States Census and the California Department of Finance. Thus, the incarcerated persons in the two prisons comprise just under 44% of the total population of Corcoran.