ZIP Code 94552
Castro Valley · Alameda, California
94552 is the ZIP code of Castro Valley in Alameda, California, United States.
- ZIP Code
- 94552
- County
- Alameda
- State
- California
- Country
- United States
Place with ZIP code 94552
| Place | County | Location |
|---|---|---|
| Castro Valley | Alameda | 37.713, -122.038 |
Near San Francisco
The nearest major city is San Francisco, about 34 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 94552?
Castro Valley.
Which county and state is 94552 in?
Alameda, California, United States.
What is the nearest major city to 94552?
San Francisco, about 34 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.