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 2026 population of 6,946. Atherton is currently declining at a rate of -0.54% annually and its population has decreased by -3.16% since the most recent census, which recorded a population of 7,173 in 2020.

The median household income in Atherton is $250,001 with a poverty rate of 5.29%. The median age in Atherton is 49.1 years: 44.5 years for males, and 52 years for females. For every 100 females there are 102.5 males.

6.9K
Total Population
1,385
Density (mi²)
-38 -0.54%
Growth

Atherton Population

Atherton Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20266,946-38-0.54%
20256,984-38-0.54%
20247,0221111.61%
20236,911320.47%
20226,879-88-1.26%
20216,967-218-3.03%
20207,1731191.69%
20197,054-29-0.41%
20187,08370.1%
20177,076150.21%
20167,061110.16%
20157,050250.36%
20147,025200.29%
20137,005290.42%
20126,976390.56%
20116,93750.07%
20106,932180.26%
20007,194310.43%
19907,163-634-8.13%
19807,797-288-3.56%
19708,0853684.77%
19607,7174,087112.59%
19503,6301,72290.25%
19401,90866653.62%
19301,24200%

Median Age

Overall: 49.1 years
Female: 52 years
Male: 44.5 years

Atherton Adults

There are 5,707 adults, (1,793 of whom are seniors) in Atherton.

Sex Ratio

Female: 3,454 (49.4%)
Male: 3,539 (50.6%)

Demographics

The racial composition of Atherton includes 68.13% White, 17.96% Asian, and smaller percentages for other race, Black or African American, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White4,76468.13%
Asian1,25617.96%
Two or more races74210.61%
Other race1341.92%
Black or African American941.34%
Native American30.04%
Race
Population ↓
Percentage (of total)
Two or more races4286.12%
White4266.09%
Other race1081.54%
Black or African American300.43%
Race
Population ↓
Percentage (of total)
White4,33862.03%
Asian1,25617.96%
Two or more races3144.49%
Black or African American640.92%
Other race260.37%
Native American30.04%

Atherton Marital Status

Economics and Income Statistics

Atherton 's average per capita income is $158,600. Household income levels show a median of $250,001. The poverty rate stands at 5.29%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Households$250,001$580,438
Families$250,001$670,279
Married Families$250,001-
Non Families$119,516$214,245

$158,600

Average Income

$250,001

Median Household Income

5.29%

Poverty Rate

Nearby Cities

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)