Union City, CA Area Codes
Union City is served by area codes 341 and 510. It is in California, Alameda County. About 67,464 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 341, 510 |
| State / province | California |
| County | Alameda County |
| Population | 67,464 |
| ZIP codes | 1 |
| Time zone | Pacific |
| Coordinates | 37.5900, -122.0752 |
What area code is Union City in?
ZIP codes in the code footprint
Nearby towns and their area codes
Hayward 341, 510Fremont 341, 510Newark 341, 510San Lorenzo 341, 510San Leandro 341, 510Castro Valley 341, 510Palo Alto 650San Carlos 650
How to dial
Dial 341 + 7 digits for a number in Union City, or +1 341 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.