Castle Rock Flag

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.

86.4K
Total Population
2,488
Density (mi²)
2.5K 2.99%
Growth

Castle Rock Population

Castle Rock Population

Data after 2023 is projected based on recent change

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

Race
Population
Percentage (of total)
White63,99283.53%
Two or more races7,65910%
Other race2,2542.94%
Asian1,6772.19%
Black or African American6910.9%
Native American3080.4%
Native Hawaiian or Pacific Islander330.04%

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 $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

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)