Postal Codes for Castro Valley, California
The postal codes for Castro Valley, California, United States (2 codes, e.g. 94546). With map location and coordinates.
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The postal codes for Castro Valley, California, United States (2 codes):
| Postal code | Place | County / area | Coordinates |
|---|---|---|---|
| 94546 | Castro Valley | Alameda | 37.702, -122.078 |
| 94552 | Castro Valley | Alameda | 37.713, -122.038 |
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Frequently asked questions
What is the postal code of Castro Valley?
Castro Valley has 2 postal codes; the first is 94546. They are all listed above with their areas.
Why does Castro Valley have more than one postal code?
Larger towns and cities are split into several postal-code areas, each serving a different neighbourhood, PO-box range or large organisation.