Contra_Costa_County,_California | isPartOf | San_Francisco_Bay_Area Antioch,_California | isPartOf | California Antioch,_California | isPartOf | Contra_Costa_County,_California Antioch,_California | leaderTitle | United_States_House_of_Representatives California | language | Spanish_language
The city of Antioch is part of Contra Costa County in the San Francisco Bay Area in California. Spanish is spoken in that state. Antioch is led by the United States House of Representatives.