Antioch, California
Antioch, California, in Contra Costa County, has ZIP codes 94509 and 94531 and area code 925.
- ZIP codes
- 94509, 94531
- Area code
- 925
- County
- Contra Costa County
- State
- California
- Time zone
- Pacific Time
- Coordinates
- 37.9798, -121.7923
ZIP codes in Antioch
Area code for Antioch
- Area code 925
In service since March 14, 1998. Local calls are dialed with 1 plus ten digits.
Time zone
Antioch is in the Pacific Time zone.
Towns near Antioch
- Oakley7.9 km (4.9 mi)
- Brentwood10.5 km (6.5 mi)
- Knightsen11.2 km (7.0 mi)
- Pittsburg11.2 km (7.0 mi)
- Clayton12.6 km (7.8 mi)
- Bethel Island14.1 km (8.8 mi)
- Bay Point16 km (9.9 mi)
- Discovery Bay18.7 km (12 mi)
Local numbers in area code 925
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- (925) 888-6784Moraga, CA$79View & buy
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- (925) 888-7987Moraga, CA$79View & buy
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