Census place · GEOID 0655282 · Santa Clara County
Palo Alto, CA ZIP codes
8 ZIP/ZCTAs intersecting this Census place in Santa Clara County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Palo Alto (GEOID 0655282). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 150,941 (8 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
Map of Palo Alto, CA

ZIP/ZCTA overlap with Palo Alto
Population overlap
Share of each ZIP/ZCTA’s population located within Palo Alto, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- 940220.4%
- 940280.4%
- 94301100.0%
USPS primary city
- 9430337.7%
USPS primary city
- 9430493.5%
USPS primary city
- 943050.0%
- 94306100.0%
USPS primary city
- 950330.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Palo Alto
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 94022 | Los Altos | Santa Clara County | 19,993 | $250,000+ |
| 94028 | Portola Valley | San Mateo County | 6,645 | $250,000+ |
| 94301 | Palo Alto | Santa Clara County | 17,126 | $235,529 |
| 94303 | Palo Alto | San Mateo County | 47,123 | $148,031 |
| 94304 | Palo Alto | Santa Clara County | 4,731 | $162,569 |
| 94305 | Stanford | Santa Clara County | 17,912 | $72,470 |
| 94306 | Palo Alto | Santa Clara County | 27,527 | $186,479 |
| 95033 | Los Gatos | Santa Cruz County | 9,884 | $183,836 |
USPS associates these ZIPs with Palo Alto
These codes list Palo Alto as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 94302 | Palo Alto | Santa Clara County | 709 | — |
| 94309 | Palo Alto | Santa Clara County | 785 | — |