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94028 ZIP Code Detail Information
94028 ZIP code is designated for Portola Valley in San Mateo of California. More information on this ZIP code is available below. If you came here after performing a reverse phone lookup, these details are provided to give you a general idea of the phone number's location.
94028 ZIP Code - Map, City, County, State, and Location
| City: | Portola Valley |
| County: | San Mateo |
| State: | California (CA) |
| Latitude: | 37.3702 |
| Longitude: | -122.2182 |
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