Union City, California
Union City, California, in Alameda County, has ZIP code 94587 and area code 510, with 341 as an overlay.
- ZIP code
- 94587
- Area codes
- 510, 341
- County
- Alameda County
- State
- California
- Time zone
- Pacific Time
- Coordinates
- 37.5895, -122.0497
ZIP codes in Union City
Area codes for Union City
- Area code 510
In service since September 2, 1991. Shares its area with 341. Local calls are dialed with 1 plus ten digits.
- Area code 341
In service since July 22, 2019. Shares its area with 510. Local calls are dialed with 1 plus ten digits.
Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.
Time zone
Union City is in the Pacific Time zone.
Towns near Union City
- Union3.1 km (1.9 mi)
- Newark6.1 km (3.8 mi)
- Fremont7 km (4.3 mi)
- Hayward8.2 km (5.1 mi)
- Fairview9.8 km (6.1 mi)
- Cherryland11.1 km (6.9 mi)
- San Lorenzo12.2 km (7.6 mi)
- Ashland13 km (8.1 mi)
Local numbers in area code 510
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- (510) 810-7707Alameda, CA$59View & buy
- (510) 810-7717Alameda, CA$59View & buy
- (510) 810-7727Alameda, CAAlso spells SPAS$59View & buy
- (510) 810-7767Alameda, CAAlso spells PROP, PROS$59View & buy
- (510) 810-7787Alameda, CAAlso spells SPUR$59View & buy
- (510) 810-7797Alameda, CA$59View & buy
- (510) 838-2008Oakland, CA$59View & buy
- (510) 838-2789Oakland, CAAlso spells TASTY$59View & buy
- (510) 838-2987Oakland, CA$59View & buy
- (510) 838-4568Oakland, CA$59View & buy
- (510) 838-4678Oakland, CAAlso spells HOST$59View & buy
- (510) 838-4789Oakland, CA$59View & buy
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