ZIP code 94303
Where is ZIP code 94303?
Palo Alto, California
San Mateo County · Standard ZIP code
ZIP code 94303 belongs to Palo Alto, California in San Mateo County. 94303 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Pacific Time zone and uses area code 650. About 46,879 people live in the 94303 area, where the median household income is $151,609. The closest ZIP codes are 94301 (Palo Alto, 1.7 mi south), 94302 (Palo Alto, 1.8 mi south) and 94309 (Palo Alto, 1.8 mi south).
| ZIP code | 94303 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Palo Alto |
| Also accepted | E Palo Alto, East Palo Alto |
| State | California (CA) |
| County | San Mateo County |
| Time zone | Pacific Time · now |
| Area code | 650 |
| Coordinates | 37.4673, -122.1388 map |
| 3-digit prefix | 943 |
Population and income in 94303
| Population | 46,879 · higher than 85% of California ZIP codes |
|---|---|
| People per square mile | 5,555 · higher than 77% of California ZIP codes |
| Median age | 39.5 years · lower than 53% of California ZIP codes |
| Men / women | 50% / 51% |
| Median household income | $151,609 · higher than 88% of California ZIP codes |
| Income per person | $72,225 |
| Below the poverty line | 7.1% |
| Bachelor’s degree or higher | 49% of adults 25+ |
| Median home value | $1,826,200 · higher than 95% of California ZIP codes |
| Median rent | $2,771 a month |
| Housing units | 15,891 |
| Households | 14,466 (3.22 people on average) |
| Owners / renters | 58% / 42% |
| Land area | 8.44 sq mi (plus 0.15 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 94303. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 94303
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 94301 | Palo Alto, CA | 1.7 mi S | Standard |
| 94302 | Palo Alto, CA | 1.8 mi S | PO Box only |
| 94309 | Palo Alto, CA | 1.8 mi S | PO Box only |
| 94025 | Menlo Park, CA | 3.2 mi SW | Standard |
| 94305 | Stanford, CA | 3.3 mi SW | Standard |
| 94304 | Palo Alto, CA | 3.4 mi SW | Standard |
| 94027 | Atherton, CA | 3.5 mi W | Standard |
| 94306 | Palo Alto, CA | 3.5 mi S | Standard |
| 94063 | Redwood City, CA | 4 mi W | Standard |
| 94061 | Redwood City, CA | 5 mi W | Standard |
| 94043 | Mountain View, CA | 5.4 mi SE | Standard |
| 94023 | Los Altos, CA | 5.8 mi S | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94303 or measure the distance to another ZIP code.
How to address mail to 94303
123 MAIN ST
PALO ALTO CA 94303
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts E PALO ALTO and EAST PALO ALTO as the city name for 94303. Adding the 4-digit ZIP+4 code (94303-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Palo Alto, CA
All Palo Alto ZIP codes with population and income →
Questions
- What city is ZIP code 94303?
- 94303 is a Palo Alto, California ZIP code. E Palo Alto and East Palo Alto are also accepted as the city name.
- What county is 94303 in?
- ZIP code 94303 is in San Mateo County, California.
- What time zone is ZIP code 94303 in?
- 94303 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 94303?
- Phone numbers in ZIP code 94303 use area code 650.
- What is the population of ZIP code 94303?
- About 46,879 people live in ZIP code 94303, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 94303?
- The median household income in 94303 is $151,609 a year, higher than 88% of California ZIP codes.
- What ZIP codes are near 94303?
- The nearest ZIP codes to 94303 are 94301 (Palo Alto, 1.7 miles), 94302 (Palo Alto, 1.8 miles), 94309 (Palo Alto, 1.8 miles) and 94025 (Menlo Park, 3.2 miles).