ZIP Code 94542
Hayward · Alameda, California
94542 is the ZIP code of Hayward in Alameda, California, United States.
- ZIP Code
- 94542
- County
- Alameda
- State
- California
- Country
- United States
Place with ZIP code 94542
| Place | County | Location |
|---|---|---|
| Hayward | Alameda | 37.659, -122.047 |
Near San Francisco
The nearest major city is San Francisco, about 35 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 94542?
Hayward.
Which county and state is 94542 in?
Alameda, California, United States.
What is the nearest major city to 94542?
San Francisco, about 35 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.