Castle Rock Flag

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.

2.4K
Total Population
1,159
Density (mi²)
-5 -0.21%
Growth

Castle Rock Population

Castle Rock Population

Data after 2023 is projected based on recent change

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)
White1,95384.99%
Native Hawaiian or Pacific Islander1416.14%
Two or more races873.79%
Other race693%
Native American291.26%
Asian190.83%

Castle Rock Marital Status

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

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

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)