Antioch,_California | populationTotal | 102372 Antioch,_California | postalCode | 94509, 94531 Antioch,_California | utcOffset | "-8" Antioch,_California | areaCode | 925 Antioch,_California | areaTotal | 75.324 (square kilometres)
Antioch in California has a UTC offset of -8, and the area code 925. With a total area of 75.324 square km, Antioach has a population of 102372, and the postal codes 94509 and 94531.