Hanford is a commercial and cultural center in the south-central San Joaquin Valley and the county seat of Kings County, California, United States. It is the principal city of the Hanford-Corcoran metropolitan area (MSA Code 25260), which encompasses all of Kings County, including the cities of Hanford and Corcoran. The ZIP Code is 93230 (with 93232 used for post office boxes). The city of Hanford is surrounded by communities that do not fall within the city limits but share the same ZIP Code. These communities include Grangeville, Hardwick and Home Garden.
The population was 53,967 at the 2010 census. The California Department of Finance estimated that the city's population was 57,703 as of 2019.
Hanford is located at 36°19′39″N 119°38′44″W (36.3275, −119.6457). It is situated in the south-central portion of California's San Joaquin Valley, 28 miles (45 km) south-southeast of the city of Fresno and 18 miles (29 km) west of the city of Visalia. The city is 249 feet (76 m) above sea level and has a flat terrain. According to the United States Census Bureau, the city has a total area of 16.6 square miles (43 km2), all land.