The city of Antioch, part of Contra Costa County, is in California. English is spoken in that state. The leader of Antioch is the House of Representatives which is part of the United States Congress.
Antioch, California | is part of | California California | language | English language United States House of Representatives | is part of | United States Congress Antioch, California | is part of | Contra Costa County, California Antioch, California | leader title | United States House of Representatives