94557 Zip code is used for Hayward City in Alameda County, California in Usa. The ZIP Codes / Postal Codes are Used by USPS (United States Postal Service known as “Post Office”, “ Usa Mail”, or” Postal Service”, an independent agency of the United States federal government responsible for providing postal service in the United States). Below is the detail for 94557, Hayward City.
| Zip Code | : | 94557 |
| City Name | : | Hayward |
| County Name | : | Alameda County |
| State Name | : | California |
| Country Name | : | USA |
| Area Code | : | 510 |
| Time Zone | : | PST |
| Country Code | : | +1 |
| Currency | : | $ USA Dollor |
| ISO Code | : | USA |