Demographics of Douglas County, Colorado

Douglas County, Colorado had 399,396 people on July 1, 2025, by the Census Bureau’s estimate: +39,081 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Douglas County, in four figures

399,396
Population: July 1, 2025, Vintage 2025 estimate.; +10.8%
Change since July 2020: +39,081 people.; 39.6 ±0.2
Median age: ACS 2020–⁠2024.; $149,594 ±$2,519
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Douglas County, Colorado's population grew 10.8% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Douglas County, Colorado's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Douglas County, Colorado's population grew 10.8% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Douglas County, Colorado's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	360,315	100.0	100.0
2021	369,831	102.6	100.2
2022	376,188	104.4	100.7
2023	384,579	106.7	101.6
2024	393,051	109.1	102.5
2025	399,396	110.8	103.1

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Population of Douglas County, Colorado on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	360,315	+2,322	+395	+19	+1,982
2021	369,831	+9,516	+1,605	+248	+7,893
2022	376,188	+6,357	+1,713	+787	+3,912
2023	384,579	+8,391	+1,798	+1,239	+5,311
2024	393,051	+8,472	+1,870	+1,483	+5,062
2025	399,396	+6,345	+2,065	+935	+3,330

Age, 2020–2024

The median age is 39.6 ±0.2: for men 38.9 ±0.3 and for women 40.2 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Douglas County by age, ACS 2020–2024
Age	People	Share	Colorado	United States
Under 5	20,324 ±81	5.4% ±<0.1	5.3% ±<0.1	5.6% ±<0.1
5 to 17	67,974 ±1,236	18.0% ±0.3	15.7% ±0.1	16.3% ±<0.1
18 to 24	29,452 ±1,110	7.8% ±0.3	9.1% ±0.1	9.1% ±<0.1
25 to 44	102,427 ±1,377	27.2% ±0.4	30.3% ±0.1	26.9% ±<0.1
45 to 64	104,500 ±1,349	27.7% ±0.4	23.9% ±0.1	24.8% ±<0.1
65 and over	52,473 ±1,315	13.9% ±0.3	15.6% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $149,594 ±$2,519, and income per person $69,608 ±$1,168, in 2024 dollars. The median is $95,470 ±$578 in Colorado and $80,734 ±$166 in the United States.

Households by income

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Households in Douglas County by income, ACS 2020–2024
Household income	Households	Share	Colorado	United States
Under $25,000	7,142 ±716	5.1% ±0.5	11.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	9,876 ±765	7.1% ±0.5	13.6% ±0.2	16.7% ±<0.1
$50,000 to $74,999	11,840 ±901	8.5% ±0.6	14.6% ±0.2	15.5% ±<0.1
$75,000 to $99,999	13,525 ±934	9.7% ±0.7	12.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	27,810 ±1,313	19.9% ±0.9	19.2% ±0.2	17.5% ±<0.1
$150,000 to $199,999	23,248 ±1,214	16.6% ±0.9	11.7% ±0.2	9.6% ±<0.1
$200,000 or more	46,519 ±1,399	33.2% ±1.0	17.0% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Douglas County by age, ACS 2020–2024
Age	Below poverty	Rate	Colorado	United States
All ages	14,140 ±1,651	3.8% ±0.4	9.4% ±0.2	12.5% ±0.1
Under 18	2,626 ±483	3.0% ±0.5	11.1% ±0.3	16.1% ±0.1
18 to 59	8,040 ±1,141	3.8% ±0.5	9.1% ±0.2	11.6% ±0.1
60 and over	3,474 ±486	4.7% ±0.7	8.7% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Douglas County, ACS 2020–2024
Measure	Douglas County	Colorado	United States
Housing units	144,432 ±84	2,589,053 ±653	143,775,355 ±10,234
Occupied	96.9% ±0.4	91.7% ±0.2	89.9% ±0.1
Vacant	3.1% ±0.4	8.3% ±0.2	10.1% ±0.1
Owner occupied	77.4% ±0.7	66.2% ±0.3	65.2% ±0.3
Renter occupied	22.6% ±0.8	33.8% ±0.3	34.8% ±0.1
Median home value	$713,600 ±$5,715	$539,400 ±$2,069	$332,700 ±$236
Median gross rent	$2,193 ±$33	$1,761 ±$7	$1,413 ±$2
Median year built	2002 ±1	1988 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Douglas County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Colorado	United States
Hispanic or Latino	38,394 ±0	10.2% ±<0.1	22.5% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	290,577 ±985	77.0% ±0.3	64.8% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	5,037 ±513	1.3% ±0.1	3.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	21,780 ±759	5.8% ±0.2	3.2% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	609 ±171	0.2% ±<0.1	0.4% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	107 to 441	< 0.1% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	1,916 ±526	0.5% ±0.1	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	18,563 ±1,256	4.9% ±0.3	4.6% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Douglas County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Colorado	United States
Born in the state	137,738 ±2,596	36.5% ±0.7	41.2% ±0.2	57.3% ±<0.1
Born in another state	202,290 ±2,598	53.6% ±0.7	47.2% ±0.2	26.9% ±<0.1
Born a citizen outside the states	5,478 ±680	1.5% ±0.2	1.7% ±0.1	1.7% ±<0.1
Born abroad	31,644 ±1,621	8.4% ±0.4	9.8% ±0.1	14.1% ±<0.1
Naturalized citizens	18,006 ±1,282	4.8% ±0.3	4.7% ±0.1	7.4% ±<0.1
Not citizens	13,638 ±1,322	3.6% ±0.4	5.2% ±0.1	6.8% ±<0.1

Douglas County among the counties of Colorado

6th of 64 by population, July 2025. Every one is listed on the Colorado page.

Counties of Colorado near Douglas County in population, July 2025
County	July 2025	Change since 2020
El Paso County	757,040	+3.2%
Denver County	740,613	+3.2%
Arapahoe County	673,820	+2.8%
Jefferson County	580,451	−0.5%
Adams County	554,668	+6.6%
Douglas County	399,396	+10.8%
Weld County	378,426	+14.2%
Larimer County	377,292	+4.8%
Boulder County	328,560	−0.7%
Pueblo County	169,277	+0.6%
Mesa County	162,845	+4.4%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026