ZIP code
94028
Portola Valley, CA
94028 covers Portola Valley in San Mateo County, with 6,645 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 94028. Methodology
ZIP code map of 94028
About ZIP code 94028
Acceptable cities: Menlo Park, Portola Vally
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94028. Not ACS. Methodology
People in 94028
Race
- White5,390
- Black or African American24
- American Indian or Alaska Native5
- Asian589
- Native Hawaiian and Pacific Islander2
- Other race100
- Two or more races794
Hispanic or Latino (any race): 449
Age
- Under 10625
- 10 to 19922
- 20 to 29482
- 30 to 39440
- 40 to 49765
- 50 to 591,123
- 60 to 691,015
- 70 to 79814
- 80 and older718
Income and housing in 94028
Education
- High school graduate92.6%
- Bachelor's degree78.0%
- Graduate degree48.3%
Places covering 94028
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.
- Portola Valley64.5%
- Ladera22.6%
- Palo Alto0.4%
- Menlo Park0.0%
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 County97.9%
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
12.5% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 94028
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 7,177 | |
| 2006 | 6,679 | |
| 2007 | 6,771 | |
| 2008 | 6,843 | |
| 2009 | 6,733 | |
| 2010 | 6,802 | |
| 2011 | 6,740 | 6,863 |
| 2012 | 6,633 | 6,770 |
| 2013 | 6,788 | 6,800 |
| 2014 | 6,720 | 6,650 |
| 2015 | 6,686 | 6,820 |
| 2016 | 6,830 | 6,780 |
| 2017 | 7,051 | 6,750 |
| 2018 | 6,868 | 6,480 |
| 2019 | 7,125 | 6,460 |
| 2020 | 6,718 | 6,550 |
| 2021 | 6,582 | 6,490 |
| 2022 | 6,888 | 6,530 |
| 2023 | 6,645 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94028
12 nearest ZIP centroids (any distance)
- 94304Palo Alto2.9 miPop 4,731 · Income $162,569
- 94305Stanford3.8 miPop 17,912 · Income $72,470
- 94022Los Altos4.0 miPop 19,993 · Income $250,000+
- 94062Redwood City5.2 miPop 25,944 · Income $233,333
- 94306Palo Alto5.3 miPop 27,527 · Income $186,479
- 94025Menlo Park5.5 miPop 40,230 · Income $215,871
- 94027Atherton5.7 miPop 7,030 · Income $250,000+
- 94301Palo Alto5.9 miPop 17,126 · Income $235,529
- 94061Redwood City6.1 miPop 37,369 · Income $141,599
- 94024Los Altos6.5 miPop 23,673 · Income $250,000+
- 94040Mountain View7.0 miPop 35,581 · Income $184,494
- 94020La Honda7.3 miPop 1,745 · Income $250,000+
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 94028, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 94028 FAQ
- What city is ZIP code 94028 in?
- 94028 is in Portola Valley, CA.
- What county is 94028 in?
- 94028 is in San Mateo County.
- What is the median household income in 94028?
- The median household income in 94028 is $250,000+.
- Which ZIP codes are near 94028?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94028.