Antioch,_California | isPartOf | Contra_Costa_County,_California Antioch,_California | isPartOf | California Antioch,_California | areaTotal | 75.324 (square kilometres) Contra_Costa_County,_California | isPartOf | San_Francisco_Bay_Area California | language | Spanish_language
Antioch, California is a part of Contra Costa County, California in the San Francisco Bay area. Spanish is a language spoken there. Antioch has a total area of 75.324 square km.