Hayward, CA Area Codes
Hayward is served by area codes 341 and 510. It is in California, Alameda County. About 191,800 people live in its 7 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 341, 510 |
| State / province | California |
| County | Alameda County |
| Population | 191,800 |
| ZIP codes | 7 |
| Time zone | Pacific |
| Coordinates | 37.6602, -122.0312 |
What area code is Hayward in?
ZIP codes in the code footprint
94540, 94541, 94542, 94543, 94544, 94545, 94557
Nearby towns and their area codes
Castro Valley 341, 510Union City 341, 510San Lorenzo 341, 510San Leandro 341, 510Fremont 341, 510Dublin 925San Ramon 925Pleasanton 925
How to dial
Dial 341 + 7 digits for a number in Hayward, or +1 341 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.