Contra_Costa_County,_California | isPartOf | San_Francisco_Bay_Area Antioch,_California | isPartOf | California California | language | English_language Antioch,_California | isPartOf | Contra_Costa_County,_California Antioch,_California | leaderTitle | United_States_House_of_Representatives
The United States House of Representatives is the leader of Antioch, California which is in Contra Costa County which is part of the San Francisco Bay area where English is spoken.