ZIP code · Palo Alto · California · United States
ZIP code 94303 — Palo Alto
ZIP code 94303 serves Palo Alto, California.
- Postal code
- 94303Single source Value from one source, not cross-checked.
- City
- Palo Alto
- County
- San Mateo
- State
- California
- Country
- United States
- Coordinates
- 37.4673, -122.1388 — precision precise (locality)
View on OpenStreetMap - Population
- 47,123 (ZCTA, ACS 5-year)
- Median household income
- $148,031
- Median age
- 38.1
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · census-acs5. Data generated on 2026-08-21. Methodology · Report an error on this page