Castle Rock

County:: Cowlitz County
County Seat:: No
Area (mi²):: 2.095
State:: Washington

Castle Rock is a city located in Cowlitz County, Washington. Castle Rock has a 2025 population of 2,427. Castle Rock is currently declining at a rate of -0.21% annually and its population has decreased by -1.02% since the most recent census, which recorded a population of 2,452 in 2020.

The average household income in Castle Rock is $71,032 with a poverty rate of 6.46%. The median age in Castle Rock is 31.1 years: 30.1 years for males, and 33.1 years for females.

Demographics

The racial composition of Castle Rock includes 84.99% White, 6.14% Native Hawaiian or Pacific Islander, 3% other race, and smaller percentages for Native American, Asian, Black or African American and multiracial populations.

Population by Race

White

Native Hawaiian or Pacific Islander

Two or more races

Other race

Native American

Asian

Black or African American

Race	Population	Percentage (of total)
White	1,953	84.99%
Native Hawaiian or Pacific Islander	141	6.14%
Two or more races	87	3.79%
Other race	69	3%
Native American	29	1.26%
Asian	19	0.83%
Black or African American	0	0%

Castle Rock Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Castle Rock's average per capita income is $40,000. Household income levels show a median of $65,272. The poverty rate stands at 6.46%.

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	$91,184	-
Families	$73,125	$81,665
Households	$65,272	$71,032
Non Families	$32,258	$45,942

$40,000

Average Income

$65,272

Median Household Income

6.46%

Poverty Rate