Atherton
Town in San Mateo County, California
Atherton is a town in San Mateo County, California, with 7,188 residents (2020 Census). It sits at 59 ft (18 m) above sea level. The nearest town is North Fair Oaks, 1.3 miles N.
- 7,188residents (2020 Census)
- 59 ftelevation · 18 m
- 5.0 sq miland area · 13.0 km²
- 1,433 / sq mipopulation density
- 94027main ZIP code (3 in total)
About Atherton
Atherton ( ATH-ər-tən) is an incorporated town in San Mateo County, California, United States. A Silicon Valley bedroom community, Its population was 6,823 as of July 2023 estimates.
The town has historically been known for its concentration of high income earners. Atherton had the highest per capita income among American towns (populations between 2,500 and 9,999) in both 1990 and 2019. It regularly ranks as having the highest cost of living in the United States. The town's zip code, 94027, had the highest median home prices in America from 2017 to 2024, in 2023 it was at $7.95 million.
Median home price in the area climbed to $9.93 million in 2026.
Text: Wikipedia · CC BY-SA 4.0
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- Median household income
- $250,001
- Median home value
- $2,000,001
- Median rent
- $3,501/mo
- Median age
- 49.1
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Map of Atherton
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Open in Google Maps ›Atherton, CA population
Atherton had 7,188 residents in the 2020 Census.
| 2020 Census | 7,188 |
|---|---|
| Density | 1,433 per sq mi (553 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Atherton at a glance
| State | California (CA) |
|---|---|
| County | San Mateo County |
| Type | Town |
| Population | 7,188 (2020) |
| Land area | 5.02 sq mi (13.0 km²) |
| Water area | 0.03 sq mi (0.08 km²) |
| Elevation | 59 ft (18 m) |
| Coordinates | 37.4563° N, 122.2015° W |
| ZIP codes | 94027, 94025, 94061 |
| Official website | ci.atherton.ca.us |
| Census code (GEOID) | 0603092 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Atherton
- North Fair Oaks1.3 mi N
- West Menlo Park1.6 mi S
- Stanford2.7 mi SE
- Menlo Park3.3 mi NE
- Emerald Lake Hills3.6 mi W
- East Palo Alto3.9 mi E
- Ladera3.9 mi S
- Woodside3.9 mi SW
- Redwood City4.1 mi N
- San Carlos4.7 mi NW
- Palo Alto5.2 mi SE
- Belmont6.5 mi NW
Straight-line distance between town centers.
Frequently asked questions about Atherton
What county is Atherton in?
Atherton is in San Mateo County, California.
What is the population of Atherton, CA?
7,188 people lived in Atherton at the 2020 Census.
What is the ZIP code of Atherton, CA?
The main ZIP code is 94027. Other ZIP codes: 94025, 94061.
What is the elevation of Atherton?
59 feet (18 m) above sea level.
What towns are near Atherton?
North Fair Oaks (1.3 mi), West Menlo Park (1.6 mi), Stanford (2.7 mi), Menlo Park (3.3 mi), Emerald Lake Hills (3.6 mi).
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