Clayton Flag

Clayton

County Seat:
No
Area (mi²):
3.84
State:
California

Clayton is a city located in Contra Costa County, California. Clayton has a 2025 population of 10,901 . Clayton is currently declining at a rate of -0.29% annually and its population has decreased by -1.45% since the most recent census, which recorded a population of 11,061 in 2020.

The average household income in Clayton is $200,844 with a poverty rate of 2.16%. The median age in Clayton is 44.3 years: 39.9 years for males, and 46.4 years for females. For every 100 females there are 100.8 males.

10.9K
Total Population
2,839
Density (mi²)
-32 -0.29%
Growth

Clayton Population

Clayton Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Clayton includes 70.06% White, 12.15% Asian, 3.08% other race, and smaller percentages for Black or African American, Native American and multiracial populations.

Population by Race

White (70.06%)

Two or more races (13.9%)

Asian (12.15%)

Other race (3.08%)

Black or African American (0.45%)

Native American (0.36%)

Race
Population
Percentage (of total)
White7,68070.06%
Two or more races1,52413.9%
Asian1,33212.15%
Other race3383.08%
Black or African American490.45%
Native American390.36%

Clayton Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Clayton's average per capita income is $105,678. Household income levels show a median of $172,226. The poverty rate stands at 2.16%.

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
Married Families$204,975-
Families$194,044$221,116
Households$172,226$200,844
Non Families$89,625$111,472

$105,678

Average Income

$172,226

Median Household Income

2.16%

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)