The U.S. District Court for the Central District of California is the court with responsibility for only seven counties, but 17 million people making it the largest population district. It is divided into three divisions.

The eastern division hears cases from Riverside and San Bernardino Counties at its Riverside courthouse.

The southern division covers Orange County from its Santa Ana courthouse.

The western division handles cases for Los Angeles,San Luis Obispo, Santa Barbara and Ventura Counties. Cases are heard in two courthouses in Los Angeles.