California City is a city located in northern Antelope Valley in Kern County, California, United States. It is 100 miles north of the city of Los Angeles, and the population was 14,973 at the 2020 census. Covering 203.63 square miles, California City has the third-largest land area of any city in the state of California, and is the largest city in California, by land area, that is not a county seat. It is the 43rd-largest city in the United States by land area.