Palo Alto, CA ZIP codes
Palo Alto, California has 6 ZIP codes, including 2 PO Box ZIPs. They are in Santa Clara County.
- Population in these ZIPs
- 96,570
- Avg. median income
- $184,600population-weighted
- Typical home value
- $2,900,600population-weighted
- Metro area
- San Jose-Sunnyvale-Santa Clara, CA
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Palo Alto, CA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 94301 | Santa Clara County | 17,508 | $242,006 | $4,337,500 |
| 94302 PO Box | Santa Clara County | — | — | — |
| 94303 | Santa Clara County | 46,879 | $151,609 | $2,061,600 |
| 94304 | Santa Clara County | 5,000 | $154,141 | $3,194,000 |
| 94306 | Santa Clara County | 27,183 | $210,000 | $3,368,200 |
| 94309 PO Box | Santa Clara County | — | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Palo Alto
- Stanford 2 mi
- Atherton 4 mi
- Mountain View 5 mi
- Los Altos 5 mi
- Portola Valley 6 mi
- Menlo Park 7 mi
- Redwood City 7 mi
- Alviso 7 mi
- Sunnyvale 7 mi
- Newark 8 mi
- San Carlos 8 mi
- Cupertino 9 mi
Frequently asked questions
What is the ZIP code for Palo Alto, CA?
Palo Alto, CA has 6 ZIP codes: 94301, 94302, 94303, 94304, 94306 and 94309.
What county is Palo Alto, California in?
Palo Alto ZIP codes are in Santa Clara County.
Which Palo Alto ZIP codes are PO Boxes?
94302 and 94309 are PO Box or single-organization ZIP codes; they have no residential delivery area.