According to the NACo, the county seat of Imperial County, California, is El Centro.
Fresno is the county seat of Fresno County located in central CA in the San Joaquin Valley.
Fresno is the county seat in the county of Fresno located in the state of CA. The capital of CA is Sacramento.
Van Nuys is in the "Los Angles" county seat.
Redwood City, California is the County Seat of San MateoCounty.
Orange County, Ca
Antioch, CA is in Contra Costa County.
Santa Ana is the most populated city in Orange County, California. It is the county seat and has a diverse population with a variety of cultural influences.
Fresno County
Its Riverside County.........
Madera County.
Fallbrook, CA is in San Diego County. It is very far north in the county and is only about 15 miles away from Temecula, CA which is in (southern) Riverside County.
Irvine is part of Orange County!