94028, CA

Zip Code 94028 Map

Zip code 94028 is located mostly in San Mateo County, CA. This postal code encompasses addresses in the city of Portola Valley, CA. Find directions to 94028, browse local businesses, landmarks, get current traffic estimates, road conditions, and more.

Nearby zip codes include 94304, 94305, 94025, 94022, 94062.