Atherton Flag

Atherton

County Seat:
No
Area (mi²):
5.016
State:
California

Atherton is a town located in San Mateo County, California. Atherton has a 2025 population of 6,591. Atherton is currently declining at a rate of -1.73% annually and its population has decreased by -8.09% since the most recent census, which recorded a population of 7,171 in 2020.

The average household income in Atherton is $619,754 with a poverty rate of 3.33%.The median age in Atherton is 49 years: 48.1 years for males, and 50 years for females.

6.6K
Total Population
1,314
Density (mi²)
-116 -1.73%
Growth

Atherton Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)