ZIP code
94403
San Mateo, CA
94403 covers San Mateo in San Mateo County, with 43,459 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 94403. Methodology
ZIP code map of 94403
About ZIP code 94403
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94403. Not ACS. Methodology
People in 94403
Race
- White19,297
- Black or African American670
- American Indian or Alaska Native299
- Asian13,355
- Native Hawaiian and Pacific Islander433
- Other race5,201
- Two or more races5,802
Hispanic or Latino (any race): 9,808
Age
- Under 105,191
- 10 to 194,631
- 20 to 296,102
- 30 to 397,909
- 40 to 496,154
- 50 to 595,668
- 60 to 694,580
- 70 to 792,909
- 80 and older1,913
Income and housing in 94403
Education
- High school graduate92.0%
- Bachelor's degree60.3%
- Graduate degree26.7%
Places covering 94403
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.
- San Mateo100.0%
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 County100.0%
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
0.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 94403
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 36,042 | |
| 2006 | 35,610 | |
| 2007 | 37,382 | |
| 2008 | 36,522 | |
| 2009 | 37,252 | |
| 2010 | 38,026 | |
| 2011 | 39,102 | 38,268 |
| 2012 | 39,311 | 38,470 |
| 2013 | 39,720 | 39,000 |
| 2014 | 40,032 | 39,900 |
| 2015 | 40,548 | 40,940 |
| 2016 | 42,252 | 40,950 |
| 2017 | 43,393 | 41,420 |
| 2018 | 44,300 | 40,960 |
| 2019 | 44,408 | 40,160 |
| 2020 | 44,361 | 39,640 |
| 2021 | 44,244 | 38,630 |
| 2022 | 43,858 | 38,910 |
| 2023 | 43,459 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94403
12 nearest ZIP centroids (any distance)
- 94402San Mateo1.4 miPop 25,498 · Income $179,683
- 94002Belmont1.8 miPop 27,730 · Income $204,573
- 94404San Mateo2.4 miPop 35,950 · Income $182,417
- 94401San Mateo2.7 miPop 35,628 · Income $121,258
- 94065Redwood City3.1 miPop 11,620 · Income $213,361
- 94070San Carlos3.4 miPop 30,696 · Income $235,373
- 94010Burlingame4.5 miPop 42,794 · Income $191,758
- 94061Redwood City6.5 miPop 37,369 · Income $141,599
- 94063Redwood City6.8 miPop 34,695 · Income $115,528
- 94030Millbrae6.8 miPop 22,589 · Income $157,567
- 94128San Francisco7.2 miPop 0 · Income —
- 94019Half Moon Bay8.0 miPop 14,754 · Income $153,272
ZIP centroids within 2 miles
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 94403 FAQ
- What city is ZIP code 94403 in?
- 94403 is in San Mateo, CA.
- What county is 94403 in?
- 94403 is in San Mateo County.
- What is the median household income in 94403?
- The median household income in 94403 is $179,825.
- Which ZIP codes are near 94403?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94403.