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 and multiracial populations.

Population by Race

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%

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