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Atherton, CA
Town in San Mateo County, California. ZIP codes: 94027.
Population
6,993
Land area
5sq mi
People per sq mi
1,394
ZIP codes
1
Atherton and its ZIP codes
Atherton at a glance
- Atherton is about 5.5 times as dense as California as a whole.
- The median household income is more than $250,000, the highest bracket the Census Bureau reports.
- A typical owner-occupied home is valued at more than $2,000,000 and median rent is more than $3,500 a month.
Local data for Atherton, CA
Counts from official public data
Housing and community stats
Atherton, CA, American Community Survey 2020-2024
Median household income
$250,000+
Poverty rate
5.3%
Median home value
$2,000,000+
Median rent
$3,500+/mo
Homeownership
87.6%
Bachelor's or higher
83.1%
Median age
49.1
Average commute
23.2 min
Largest reported origins and ancestries: Chinese Americans (792), German Americans (743), Irish Americans (685).
Economy and federal money
Jobs, pay, income and spending are for San Mateo County. PPP loans are for Atherton.
Unemployment rate
4.0%
Aug 2026, -0.3 pts in a year
Average annual pay
$214,295
411,346 jobs, 2025
Income per person
$179,656
BEA, 2024
Federal spending
$5.06B
FY 2026, $6,619 per person
PPP loans
$14.59M
138 loans, 1,213 jobs reported
How people get to work
Atherton, CA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone44.9%
- Carpooled7.0%
- Public transit1.7%
- Walked3.8%
- Bicycle0.5%
- Taxi, ride-hailing, motorcycle or other1.4%
- Worked from home40.8%
Average one-way commute: 23.2 minutes for people who do not work from home.
Environment and hazard risk
Atherton, CA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: earthquake
Storm events since 1996
690
Countywide, mostly strong wind
Flood insurance policies
3,346
1.8% of homes, county
July high / Jan low
81° / 41°F
19.0 inches of rain a year
Hazards, floods and storm historyCheck a flood zone2 historic places
Health statistics
Share of adults in Atherton, CA, CDC PLACES estimates
Obesity
19.6%
U.S. 33.3% -13.7 pts
Diabetes
8.7%
U.S. 12.1% -3.4 pts
Smoking
5.1%
U.S. 12.8% -7.7 pts
Uninsured (18-64)
3.0%
U.S. 11.1% -8.1 pts
ZIP codes in Atherton
1 in or overlapping Atherton. Population shown
Cities near Atherton
| Name | Distance | Land area (sq mi) |
|---|---|---|
| West Menlo ParkCensus-designated place | 1.1 mi | 0.5 |
| North Fair OaksCensus-designated place | 1.9 mi | 1.2 |
| StanfordCensus-designated place | 2.6 mi | 2.8 |
| Menlo ParkCity | 2.8 mi | 10 |
| Emerald Lake HillsCensus-designated place | 3.4 mi | 1.2 |
| LaderaCensus-designated place | 3.4 mi | 0.4 |
| WoodsideTown | 3.6 mi | 11.5 |
| Redwood CityCity | 3.6 mi | 19.3 |
| East Palo AltoCity | 4.1 mi | 2.5 |
| San CarlosCity | 4.4 mi | 5.4 |
| Palo AltoCity | 5.2 mi | 24.1 |
| Portola ValleyTown | 5.6 mi | 9.1 |
| Los Altos HillsTown | 6.5 mi | 9.1 |
| BelmontCity | 6.8 mi | 4.6 |
| Mountain ViewCity | 6.9 mi | 12 |
| Los AltosCity | 7.8 mi | 6.5 |
Frequently asked questions
- What county is Atherton, CA in?
- Atherton is in San Mateo County, California.
- What ZIP codes are in Atherton, CA?
- ZIP codes in or overlapping Atherton include 94027.
- What is the population of Atherton, CA?
- About 6,993 people live in Atherton, based on American Community Survey 5-year estimates.
- What cities are near Atherton?
- Nearby places include West Menlo Park (1.1 mi), North Fair Oaks (1.9 mi), Stanford (2.6 mi), Menlo Park (2.8 mi), Emerald Lake Hills (3.4 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023