ZIP code
94303
Palo Alto, CA
94303 covers Palo Alto in San Mateo County, with 47,123 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 94303. Methodology
ZIP code map of 94303

About ZIP code 94303
Acceptable cities: E Palo Alto, East Palo Alto
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94303. Not ACS. Methodology
People in 94303
Race
- White11,532
- Black or African American3,487
- American Indian or Alaska Native705
- Asian9,648
- Native Hawaiian and Pacific Islander2,127
- Other race14,783
- Two or more races5,999
Hispanic or Latino (any race): 21,056
Age
- Under 105,913
- 10 to 197,693
- 20 to 297,033
- 30 to 396,601
- 40 to 496,869
- 50 to 596,038
- 60 to 694,009
- 70 to 792,515
- 80 and older1,610
Income and housing in 94303
Education
- High school graduate84.7%
- Bachelor's degree48.4%
- Graduate degree29.0%
Places covering 94303
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- East Palo Alto62.2%
- Palo Alto37.7%
- Menlo Park0.1%
- Mountain View0.0%
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
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- San Mateo County62.3%
- Santa Clara County37.7%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Population history for 94303
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 39,638 | |
| 2006 | 39,826 | |
| 2007 | 42,371 | |
| 2008 | 42,550 | |
| 2009 | 44,790 | |
| 2010 | 47,043 | |
| 2011 | 44,714 | 48,215 |
| 2012 | 45,714 | 48,930 |
| 2013 | 46,357 | 49,320 |
| 2014 | 47,159 | 49,510 |
| 2015 | 47,550 | 49,630 |
| 2016 | 47,743 | 49,050 |
| 2017 | 47,850 | 48,880 |
| 2018 | 48,039 | 47,140 |
| 2019 | 48,244 | 45,630 |
| 2020 | 47,828 | 43,990 |
| 2021 | 48,487 | 41,780 |
| 2022 | 47,989 | 41,850 |
| 2023 | 47,123 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94303
12 nearest ZIP centroids (any distance)
- 94301Palo Alto2.1 miPop 17,126 · Income $235,529
- 94306Palo Alto3.0 miPop 27,527 · Income $186,479
- 94025Menlo Park3.7 miPop 40,230 · Income $215,871
- 94043Mountain View4.1 miPop 32,042 · Income $180,781
- 94305Stanford4.1 miPop 17,912 · Income $72,470
- 94027Atherton4.7 miPop 7,030 · Income $250,000+
- 94063Redwood City5.0 miPop 34,695 · Income $115,528
- 94304Palo Alto5.1 miPop 4,731 · Income $162,569
- 94041Mountain View5.3 miPop 15,841 · Income $168,980
- 94560Newark5.6 miPop 47,145 · Income $164,909
- 94040Mountain View5.6 miPop 35,581 · Income $184,494
- 95002Alviso5.8 miPop 1,639 · Income $89,861
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 94303, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 94303 FAQ
- What city is ZIP code 94303 in?
- 94303 is in Palo Alto, CA.
- What county is 94303 in?
- 94303 is in San Mateo County.
- What is the median household income in 94303?
- The median household income in 94303 is $148,031.
- Which ZIP codes are near 94303?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94303.