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 total area of 75.324 square kilometres and a population of 102,372. The postal codes for Antioch are 94509 and 94531, the UTC offset is -8 and the area code is 925.