Atherton, California

Atherton population, 2020 to 2024

Atherton lost 151 residents from July 2020 to July 2024, a change of -2.1%. In the latest year it moved by +111. Among 429 California places of 5,000 or more, that growth ranks 287th; the median place changed by -1.1%. The median place of 5,000+ in California has 37,056 people, so Atherton is 19% of it.

Atherton covers 5.02 square miles of land and 0.03 of water, for 1,399 people per square mile of land. The median California place of 5,000+ has 3,725, so Atherton is less dense than the typical town.

What county Atherton is in

All of Atherton's residents live in San Mateo County, which had 742,893 residents in 2024. Atherton holds 0.9% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Atherton

1 ZIP Code Tabulation Area (ZCTA) overlaps Atherton by at least 10% of the ZCTA's or the town's land: 94027. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a town that annexed land after 2020 may reach into ZIP codes not listed here.

Where Atherton is

The Census internal point of Atherton is at 37.457100, -122.201100. Sacramento, the capital, is 86.4 miles NNE in a straight line. The nearest larger place is Menlo Park, CA (33,040 people), 3.3 miles away. The nearest city of 100,000 or more is San Mateo, CA, 9.3 miles away.

Daylight in Atherton

At 37.46° N, Atherton gets about 14 h 45 min of daylight around the June solstice and 9 h 35 min around the December solstice, a swing of 5 h 10 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Atherton

The eight nearest incorporated places of 1,000+ in California, measured between internal points. The closest is Menlo Park, 3.3 miles away, with 33,040 people.