Corcoran, California. Corcoran is a city in Kings County, California, United States. Corcoran is located 17 miles (27 km) 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).