Palo Alto, California ZIP codes
What is the ZIP code for Palo Alto, CA?
6 ZIP codes, 94301 to 94309
4 for street addresses · 2 PO Box only
Palo Alto is in Santa Clara County and San Mateo County, California. USPS uses 6 ZIP codes for Palo Alto, 4 of them for street addresses. About 96,570 people live in Palo Alto ZIP codes; the most populated is 94303 with 46,879 residents. The city is in the Pacific Time zone and uses area code 650.
| City | Palo Alto, CA |
|---|---|
| State | California |
| Counties | Santa Clara County, San Mateo County |
| ZIP codes | 6 |
| Population (ZIP areas) | about 96,570 |
| Time zone | Pacific Time · now |
| Area code | 650 |
All Palo Alto ZIP codes
| ZIP code | Type | County | Population | Median income |
|---|---|---|---|---|
| 94301 | Standard | Santa Clara County | 17,508 | $242,006 |
| 94302 | PO Box only | Santa Clara County | – | – |
| 94303 | Standard | San Mateo County | 46,879 | $151,609 |
| 94304 | Standard | Santa Clara County | 5,000 | $154,141 |
| 94306 | Standard | Santa Clara County | 27,183 | $210,000 |
| 94309 | PO Box only | Santa Clara County | – | – |
Population and income: U.S. Census Bureau, American Community Survey 5-year estimates. PO Box and single-organization ZIP codes have no residents.
Other ZIP codes that accept “Palo Alto”
These ZIP codes belong to a neighboring city, but USPS also accepts Palo Alto as the city name in addresses.
Cities near Palo Alto
- Stanford, CA 1.4 mi
- Menlo Park, CA 2 mi
- Atherton, CA 3 mi
- Mountain View, CA 5 mi
- Los Altos, CA 5.6 mi
- Redwood City, CA 5.8 mi
- Portola Valley, CA 6.1 mi
- San Carlos, CA 7.5 mi
- Sunnyvale, CA 8.4 mi
- Newark, CA 9.3 mi
Questions
- What is the ZIP code for Palo Alto, CA?
- Palo Alto has 6 ZIP codes: 94301, 94302, 94303, 94304, 94306 and 94309. The right one depends on the street address.
- How many ZIP codes does Palo Alto have?
- 6: 4 standard ZIP codes for street addresses, 2 for PO Boxes only.
- Which Palo Alto ZIP code has the most people?
- 94303, with about 46,879 residents, followed by 94306 (27,183).
- What county is Palo Alto, CA in?
- Palo Alto ZIP codes are in Santa Clara County and San Mateo County.
- What area code is Palo Alto, CA?
- Palo Alto uses area code 650.