Antioch,_California | utcOffset | "-7" Antioch,_California | areaCode | 925 Antioch,_California | populationTotal | 102372 Antioch,_California | postalCode | 94509, 94531 Antioch,_California | areaTotal | 75.324 (square kilometres)
Some information about Antioch, California are as follows: its UTC offset is -7, the area code is 925, and it has the post codes 94509 and 94531. Antioch's population is 102372, and the total area of the city is 75.324 square kilometres.