Antioch,_California | utcOffset | "-7" Antioch,_California | areaCode | 925 Antioch,_California | populationTotal | 102372 Antioch,_California | postalCode | 94509, 94531 Antioch,_California | areaTotal | 75.324 (square kilometres)
Antioch in California has a UTC offset of -7, an area code of 925 and postal codes of 94509 and 94531. It has a total area of 75.324 sq km and a population of 102.372.