Castle Rock

County:: Douglas County
County Seat:: Yes
Area (mi²):: 34.742
State:: Colorado

Castle Rock is a town located in Douglas County, Colorado. Castle Rock has a 2025 population of 86,434. It is also the county seat of Douglas County. Castle Rock is currently growing at a rate of 2.99% annually and its population has increased by 16.98% since the most recent census, which recorded a population of 73,886 in 2020.

The average household income in Castle Rock is $165,606 with a poverty rate of 3.75%. The median age in Castle Rock is 35.8 years: 36.1 years for males, and 35.5 years for females.

Demographics

The racial composition of Castle Rock includes 83.53% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	63,992	83.53%
Two or more races	7,659	10%
Other race	2,254	2.94%
Asian	1,677	2.19%
Black or African American	691	0.9%
Native American	308	0.4%
Native Hawaiian or Pacific Islander	33	0.04%

Castle Rock Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Castle Rock's average per capita income is $79,469. Household income levels show a median of $143,031. The poverty rate stands at 3.75%.

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	$170,924	-
Families	$160,041	$187,483
Households	$143,031	$165,606
Non Families	$73,489	$85,692

$79,469

Average Income

$143,031

Median Household Income

3.75%

Poverty Rate