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
With a total area of 75.324 square km, is Antioch. This city is part of Contra Costa County, in turn, part of the San Francisco Bay area, in California. The Spanish language is spoken in California.