Antioch,_California | isPartOf | Contra_Costa_County,_California Antioch,_California | isPartOf | California California | language | Vietnamese_language Antioch,_California | areaTotal | 75.324 (square kilometres) Contra_Costa_County,_California | isPartOf | San_Francisco_Bay_Area
Antioch has a total area of 75.324 sq km and is located in Contra Costa County, San Francisco Bay, California. One of the languages spoken is Vietnamese.