Douglas County, Colorado Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 6th-largest in Colorado

The population of Douglas County, Colorado is 368,283 as of the 2023 American Community Survey, making it the 6th-largest county in Colorado. The median household income is $145,737, the median home value is $674,000, and the median age is 39.5.

The population of Douglas County has grown 37.3% since 2010 (287,011 → 393,995), a +2.29% annualized rate.

Douglas County within Colorado · Source: US Census TIGER/Line via us-atlas

368,283

Population

+2.29%

Annual growth

438

People / sq mi

$145,737

Median Income

$674,000

Median Home Value

Douglas County covers 841 sq mi of land at 438.0 people per square mile.

About Douglas County, CO

Douglas County is a county in Colorado with a population of 368,283. It ranks #6 among counties in Colorado by population. The median age is 39.5, in line with the national median. The population is 50.3% male and 49.7% female.

The median household income in Douglas County is $145,737, above the US median of $74,580. 2.1% of residents live below the federal poverty level. Home values sit at a median of $674,000, with monthly rent averaging $2,095. The homeownership rate of 77.8% is higher than the national rate of 64.8%.

Educational attainment in Douglas County reflects 60.9% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 27.4% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 27.2 minutes each way.

Douglas County Population History (2010-2024)

The county of Douglas County had a population of 287,011 in 2010 and 393,995 in 2024, a 37.3% growth over 14 years. The peak was 393,995 in 2024. Average annual growth rate: 2.29%.

393,995

Population (2024)

287,011

Population (2010)

393,995

Peak (2024)

2.29%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	287,011	-	-	estimate
2011	292,626	+5,615	+1.96%	estimate
2012	298,826	+6,200	+2.12%	estimate
2013	306,407	+7,581	+2.54%	estimate
2014	314,783	+8,376	+2.73%	estimate
2015	322,333	+7,550	+2.40%	estimate
2016	328,680	+6,347	+1.97%	estimate
2017	336,347	+7,667	+2.33%	estimate
2018	343,780	+7,433	+2.21%	estimate
2019	351,842	+8,062	+2.35%	estimate
2020	360,327	+8,485	+2.41%	estimate
2021	369,826	+9,499	+2.64%	estimate
2022	376,462	+6,636	+1.79%	estimate
2023	385,141	+8,679	+2.31%	estimate
2024	393,995	+8,854	+2.30%	estimate

Race & Ethnicity

White	81.7%
Black or African American	1.4%
Asian	0.0%
Hispanic or Latino (any race)	1.6%
Two or More Races	0.0%

Age & Sex

39.5

Median Age

49.7%

Female

50.3%

Male

13.4%

Age 65+

Age Distribution

Under 5

5.4%

5–9

6.4%

10–14

7.3%

15–19

7.3%

20–24

5.4%

25–34

11.8%

35–44

15.0%

45–54

15.2%

55–59

7.1%

60–64

5.7%

65–74

8.4%

75–84

3.8%

85+

1.2%

Children (under 15): 19.1% · Seniors (65+): 13.4%

Income & Poverty

Median household income	$145,737+$53,267 vs state
Mean household income	$177,521
Per-capita income	$66,810
Poverty rate	2.1%-3.8% vs state
Unemployment rate	2.6%
Employment-to-population	69.4%

Top Industries by Employment

Professional & business services

20.0%

Finance & real estate

17.5%

Information

11.6%

Education & health care

7.4%

Manufacturing

6.8%

Construction

5.6%

Transportation & utilities

5.0%

Public administration

4.5%

The largest employment sector in Douglas County is professional & business services, accounting for 20.0% of workers.

How residents commute

0.8%

Drive alone

1.2%

Carpool

64.4%

Public transit

27.4%

Work from home

27.2 min

Avg commute

Housing

$674,000+$171,800 vs state

Median home value

$2,095

Median rent

77.8%

Homeownership rate

140,542

Total housing units

96.9%

Occupied

3.1%

Vacant

22.2%

Renter-occupied

Social & access

96.3%

With health insurance

98.9%

With broadband internet

53.5%

Foreign-born

7.7%

Veterans (18+)

7.6%

With a disability

90.0%

Speak language other than English at home

Education

98.0%

High School+

60.9%

Bachelor's+

Largest cities in Colorado

Denver (713,734)Colorado Springs (483,099)Aurora (390,201)Fort Collins (169,705)Lakewood (156,309)Thornton (142,878)Arvada (122,835)Westminster (115,546)Pueblo (111,514)Greeley (109,421)All Colorado cities →

Other counties in Colorado

El Paso County (736,008)Denver County (713,734)Arapahoe County (655,709)Jefferson County (579,715)Adams County (524,408)Larimer County (363,561)Weld County (340,711)Boulder County (328,317)Pueblo County (168,726)Mesa County (157,316)All Colorado counties →

Part of Colorado

Colorado demographic profile All Colorado data →

Metro areas in Colorado

Denver (2,977,085)Colorado Springs (760,782)Fort Collins (363,561)Greeley (340,711)Boulder (328,317)Pueblo (168,726)Grand Junction (157,316)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Douglas County, Colorado has a population of 368,283 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 6th-largest county in Colorado. Population density is 438 people per square mile.

The population of Douglas County has grown 37.3% since 2010 (287,011 → 393,995), a +2.29% annualized rate.

The median household income in Douglas County, Colorado is $145,737, with mean (average) household income of $177,521 and per-capita income of $66,810. 2.1% of residents live below the federal poverty level.

In Douglas County, the largest racial and ethnic groups are White (81.7%), Hispanic or Latino (1.6%), Black or African American (1.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Douglas County, Colorado is 39.5 years. Residents are 49.7% female and 50.3% male.

The median home value in Douglas County is $674,000 and median monthly rent is $2,095. 77.8% of occupied housing units are owner-occupied. The county has 140,542 total housing units, 3.1% of which are vacant.

The largest employment sector in Douglas County, Colorado is professional, scientific, and management services, employing 20.0% of workers. The unemployment rate is 2.6%.

Denver is among the largest cities associated with Douglas County, Colorado, with a population of 713,734.