Walnut Creek

County:: Contra Costa County
County Seat:: No
Area (mi²):: 19.76
State:: California

Walnut Creek is a city located in Contra Costa County, California. Walnut Creek has a 2025 population of 68,456. Walnut Creek is currently declining at a rate of -0.51% annually and its population has decreased by -2.48% since the most recent census, which recorded a population of 70,196 in 2020.

The average household income in Walnut Creek is $179,232 with a poverty rate of 5.95%.The median age in Walnut Creek is 46.1 years: 43.4 years for males, and 49.3 years for females.

Demographics

The racial composition of Walnut Creek includes 65.04% White, 16.68% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	45,393	65.04%
Asian	11,644	16.68%
Two or more races	8,524	12.21%
Other race	1,943	2.78%
Black or African American	1,651	2.37%
Native American	400	0.57%
Native Hawaiian or Pacific Islander	235	0.34%

Walnut Creek Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Walnut Creek's average per capita income is $89,799. Household income levels show a median of $135,665. The poverty rate stands at 5.95%.

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	$200,038	-
Families	$173,635	$222,587
Households	$135,665	$179,232
Non Families	$86,815	$119,299

$89,799

Average Income

$135,665

Median Household Income

5.95%

Poverty Rate