Kern County is located in the U.S. state of California. As of the 2010 census, the population was 839,631. Its county seat is Bakersfield.
Kern County comprises the Bakersfield, California, Metropolitan statistical area. The county spans the southern end of the Central Valley. Covering 8,161.42 square miles (21,138.0 km2), it ranges west to the southern slope of the Coast Ranges, and east beyond the southern slope of the eastern Sierra Nevada into the Mojave Desert, at the city of Ridgecrest.