Douglas County Flag

Douglas County

State:
Colorado
County Seat:
Castle Rock

Douglas County's estimated 2025 population is 399,844 with a growth rate of 2.03% in the past year according to the most recent United States census data. Douglas County is the 6th largest county in Colorado. The 2010 population was 287,011 and has seen a growth of 39.31% since that time.

399,844
Total Population
475
Population Density (mi²)
6
Population Rank (State)
8K 2.03%
Annual Population Growth

Douglas County Population

Douglas County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Douglas County includes 81.74% White, 5.56% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White301,03581.74%
Two or more races31,1698.46%
Asian20,4815.56%
Other race8,5192.31%
Black or African American5,2861.44%
Native American1,5810.43%
Native Hawaiian or Pacific Islander2120.06%

Douglas County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Douglas County's average per capita income is $81,223. Household income levels show a median of $145,737. The poverty rate stands at 3.23%.

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$175,893$213,271
Families$164,967$199,974
Households$145,737$177,521
Non Families$79,970$100,890

$81,223

Average Income

$145,737

Median Household Income

3.23%

Poverty Rate