ZIP code
94027
Atherton, CA
94027 covers Atherton in San Mateo County, with 7,030 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 94027. Methodology
ZIP code map of 94027
About ZIP code 94027
Acceptable cities: Menlo Park
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 94027. Not ACS. Methodology
People in 94027
Race
- White4,894
- Black or African American100
- American Indian or Alaska Native16
- Asian1,422
- Native Hawaiian and Pacific Islander45
- Other race154
- Two or more races639
Hispanic or Latino (any race): 494
Age
- Under 10513
- 10 to 191,309
- 20 to 29876
- 30 to 39418
- 40 to 49676
- 50 to 591,103
- 60 to 69981
- 70 to 79833
- 80 and older561
Income and housing in 94027
Education
- High school graduate99.0%
- Bachelor's degree86.0%
- Graduate degree55.4%
Places covering 94027
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.
- Atherton98.9%
- West Menlo Park0.4%
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
0.7% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 94027
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 7,003 | |
| 2006 | 6,539 | |
| 2007 | 6,648 | |
| 2008 | 6,588 | |
| 2009 | 6,530 | |
| 2010 | 6,394 | |
| 2011 | 7,028 | 6,306 |
| 2012 | 7,083 | 6,320 |
| 2013 | 7,110 | 6,210 |
| 2014 | 7,230 | 6,020 |
| 2015 | 7,244 | 6,150 |
| 2016 | 7,317 | 6,190 |
| 2017 | 7,371 | 6,050 |
| 2018 | 7,444 | 5,550 |
| 2019 | 7,415 | 5,830 |
| 2020 | 7,193 | 5,820 |
| 2021 | 7,213 | 5,770 |
| 2022 | 7,142 | 5,720 |
| 2023 | 7,030 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 94027
12 nearest ZIP centroids (any distance)
- 94025Menlo Park1.1 miPop 40,230 · Income $215,871
- 94061Redwood City2.0 miPop 37,369 · Income $141,599
- 94063Redwood City2.5 miPop 34,695 · Income $115,528
- 94301Palo Alto2.9 miPop 17,126 · Income $235,529
- 94305Stanford3.2 miPop 17,912 · Income $72,470
- 94304Palo Alto4.5 miPop 4,731 · Income $162,569
- 94303Palo Alto4.7 miPop 47,123 · Income $148,031
- 94070San Carlos4.8 miPop 30,696 · Income $235,373
- 94306Palo Alto4.8 miPop 27,527 · Income $186,479
- 94062Redwood City5.2 miPop 25,944 · Income $233,333
- 94028Portola Valley5.7 miPop 6,645 · Income $250,000+
- 94065Redwood City5.9 miPop 11,620 · Income $213,361
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 94027 FAQ
- What city is ZIP code 94027 in?
- 94027 is in Atherton, CA.
- What county is 94027 in?
- 94027 is in San Mateo County.
- What is the median household income in 94027?
- The median household income in 94027 is $250,000+.
- Which ZIP codes are near 94027?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 94027.