Zip Code 94303
East Palo Alto, California — San Mateo County
📍 ZIP code 94303 is in East Palo Alto, San Mateo County, California.
ZIP code 94303 is located in East Palo Alto, San Mateo County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 47,123. The area code for ZIP code 94303 is 408.
Quick Answer
Zip code 94303 is in East Palo Alto, California (San Mateo County). It has a population of 47,123, median household income of $148,031, and median home value of $1,825,000.
Population
47,123
Income
$148,031
Home Value
$1,825,000
Climate
79°F / 39°F
About Zip Code 94303
Zip code 94303 is located in East Palo Alto, California, within San Mateo County. Home to approximately 47,123 residents, this area sits at an elevation of 3 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 408.
The median household income is $148,031 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $1,825,000, and the cost of living index is 250 (150% above the national average of 100).
Summers average a high of 79°F while winters drop to 39°F. The area receives about 15 in of rain annually. The zip code covers 8 square miles of land area and 0.7 square miles of water.
Key Statistics
47,123
$148,031
$1,825,000
Pacific (PST/PDT)
408
3 ft
8 sq mi
38.1
15,927
Advertisement
Compare With Nearby Zip Codes
| Metric | 94303 | 94301 | 94306 | 94025 | 94043 | 94305 |
|---|---|---|---|---|---|---|
| City | East Palo Alto, CA | East Palo Alto, CA | Palo Alto, CA | Menlo Park, CA | Mountain View, CA | East Palo Alto, CA |
| Population | 47,123 | 17,126 | 27,527 | 40,230 | 32,042 | 17,912 |
| Median Income | $148,031 | $235,529 | $186,479 | $215,871 | $180,781 | $72,470 |
| Home Value | $1,825,000 | $2M+ | $2M+ | $2M+ | $1,647,500 | $2M+ |
| Cost of Living | 250 | 250 | 250 | 250 | 250 | 250 |
| Median Age | 38.1 | 45.4 | 41 | 38.8 | 36.1 | 22.6 |
Cost of Living
100 = National Average. East Palo Alto's cost of living is 150% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
12.3x
Demographics
Zip code 94303 has a population of 47,123 people with a median age of 38.1. There are 15,927 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
East Palo Alto (94303) population trend from 2010 to 2024
↑ 4.2%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
79°F
39°F
15 in
0 in
East Palo Alto experiences mild summers with average highs around 79°F. Winters are mild with lows averaging 39°F. The area receives virtually no snowfall.
Advertisement
Housing & Economy
Median Home Value
$1,825,000
Median Household Income
$148,031
With 15,927 housing units across 8 square miles, 94303 has a housing density of 1,991 units per square mile. The home price-to-income ratio is 12.3x.
Location & Geography
Latitude
37.4579°
Longitude
-122.1151°
Land Area
8 sq mi
Water Area
0.7 sq mi
Nearby Zip Codes
Zip codes closest to 94303 (East Palo Alto, CA) with distances:
All Zip Codes in East Palo Alto, CA
Other zip codes serving East Palo Alto:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 94303's $148,031. A way to compare East Palo Alto to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 94303 (East Palo Alto, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
Explore California
Popular "Near Me" Searches
Advertisement
People Also Ask
What zip code is East Palo Alto, California?
East Palo Alto, California uses zip code 94303 along with 3 other zip codes.
What county is zip code 94303 in?
Zip code 94303 is located in San Mateo County, California.
What is the population of zip code 94303?
The population of zip code 94303 is 47,123 with a median age of 38.1.
Is 94303 in East Palo Alto, California?
Yes, zip code 94303 is in East Palo Alto, San Mateo County, California. The area code is 408.
Frequently Asked Questions
What city is zip code 94303 in?
Zip code 94303 is in East Palo Alto, California. It is part of San Mateo County and uses the Pacific (PST/PDT) timezone.
What is zip code 94303?
Zip code 94303 is a U.S. postal code in East Palo Alto, California (San Mateo County). It has a population of 47,123 and covers 8 square miles.
What is the population of zip code 94303?
The population of zip code 94303 (East Palo Alto, CA) is 47,123 with a median age of 38.1. There are approximately 15,927 housing units in this area.
What is the median income in zip code 94303?
The median household income in zip code 94303 (East Palo Alto, CA) is $148,031 per year. The cost of living index is 250 (100 = national average).
What is the average home price in zip code 94303?
The median home value in zip code 94303 (East Palo Alto, CA) is $1,825,000. The cost of living index is 250 compared to the national average of 100.
What county is zip code 94303 in?
Zip code 94303 is located in San Mateo County, California. The primary city is East Palo Alto.
What is the area code for zip code 94303?
Zip code 94303 in East Palo Alto, CA uses area code 408. It is located in the Pacific (PST/PDT) timezone.
Is zip code 94303 a good place to live?
Zip code 94303 (East Palo Alto, CA) has a cost of living index of 250 (100 = national average), a median household income of $148,031, and median home values of $1,825,000. The median age is 38.1. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 94303?
The cost of living index for zip code 94303 (East Palo Alto, CA) is 250, where 100 represents the national average. This area is above the national average. Median home value: $1,825,000.
What schools serve zip code 94303?
Zip code 94303 in East Palo Alto, California is served by the local school district of San Mateo County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
People Also Searched For
Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.