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Atherton

A town of 6,993 people in California
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Around town

The places and views that make it Atherton

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Outdoors in Atherton

Parks & trails →
Conserved land0.7%22 of 3,216 acres
Trails1.3 mi0.3 mi per sq mi
Parks & preserves23 conserved acres per 1,000 residents

Know a trail or park that’s missing? Anyone can add it to OpenStreetMap, and it shows up here on the next refresh.

Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

Watkins-Cartan Carriage House, 25 Isabella Avenue
From Atherton’s story

Watkins-Cartan Carriage House, 25 Isabella Avenue

Photo · Library of Congress

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Know Atherton

The town at a glance, and the guide to how things work

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About Atherton

Town in San Mateo County, California
1795Established
7,188Population
5.1 sq miArea
59 ftElevation

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.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code94027
Area code650
Living in Atherton

Housing in Atherton

$8.52M▲ 15.7% in a year Typical home value · Zillow

The typical Atherton home is worth about $8,521,000, up 15.7% in a year, 1015% above the California typical home.

A strong seller's market

Buyer’sBalancedSeller’s
Days on market34
Sale-to-list101.2%
Sold in May11
Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Atherton

B

Safety Grade B

Atherton reports less crime per resident than 60% of the U.S. towns and cities we grade.

Violent crime per 1,000
Atherton 0.7
California 4.3
U.S. 3.3
Property crime per 1,000
Atherton 7.9
California 18.2
U.S. 15.5
FBI crime data, 2025 · crimes reported to policeCrime & safety →

Schools in Atherton

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A−

School Grade A-

The public schools Atherton’s kids attend, from kindergarten through graduation, outperform 80% of California’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.

#239Best public schoolsof 574 in CA
DistrictSequoia Union HighSchools7

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within CA. Ratings are from neighbors.

Famous people from Atherton

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How things work in Atherton

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Atherton

California · CA
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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01