Castro Valley

County:: Alameda County
County Seat:: No
Area (mi²):: 16.848
State:: California

Castro Valley is a CDP located in Alameda County, California. Castro Valley has a 2025 population of 66,458. Castro Valley is currently growing at a rate of 0.51% annually and its population has increased by 3.21% since the most recent census, which recorded a population of 64,392 in 2020.

The average household income in Castro Valley is $168,687 with a poverty rate of 7.47%. The median age in Castro Valley is 42.8 years: 42.1 years for males, and 43.4 years for females.

Demographics

The racial composition of Castro Valley includes 38.3% White, 34.11% Asian, 8.73% Black or African American, 5.56% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	25,046	38.3%
Asian	22,303	34.11%
Two or more races	8,023	12.27%
Black or African American	5,706	8.73%
Other race	3,638	5.56%
Native American	582	0.89%
Native Hawaiian or Pacific Islander	91	0.14%

Castro Valley Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Castro Valley's average per capita income is $76,248. Household income levels show a median of $138,069. The poverty rate stands at 7.47%.

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	$182,653	-
Families	$157,459	$189,008
Households	$138,069	$168,687
Non Families	$71,797	$96,097

$76,248

Average Income

$138,069

Median Household Income

7.47%

Poverty Rate