Demographics of Delta County, Colorado

Delta County, Colorado had 32,178 people on July 1, 2025, by the Census Bureau’s estimate: +1,116 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.

Delta County, in four figures

32,178
Population: July 1, 2025, Vintage 2025 estimate.; +3.6%
Change since July 2020: +1,116 people.; 48.1 ±0.4
Median age: ACS 2020–⁠2024.; $57,774 ±$4,050
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.

Delta County, Colorado's population grew 3.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Delta 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

Delta County, Colorado's population grew 3.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Delta 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	31,062	100.0	100.0
2021	31,414	101.1	100.2
2022	31,575	101.7	100.7
2023	31,786	102.3	101.6
2024	32,294	104.0	102.5
2025	32,178	103.6	103.1

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Population of Delta 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	31,062	−141	−44	0	−75
2021	31,414	+352	−184	+8	+542
2022	31,575	+161	−240	+12	+376
2023	31,786	+211	−173	+11	+370
2024	32,294	+508	−133	+53	+588
2025	32,178	−116	−121	+6	−1

Age, 2020–2024

The median age is 48.1 ±0.4: for men 46.0 ±0.8 and for women 50.4 ±0.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Delta County by age, ACS 2020–2024
Age	People	Share	Colorado	United States
Under 5	1,439 ±146	4.6% ±0.5	5.3% ±<0.1	5.6% ±<0.1
5 to 17	4,590 ±331	14.5% ±1.0	15.7% ±0.1	16.3% ±<0.1
18 to 24	2,160 ±280	6.8% ±0.9	9.1% ±0.1	9.1% ±<0.1
25 to 44	6,464 ±380	20.5% ±1.2	30.3% ±0.1	26.9% ±<0.1
45 to 64	7,972 ±396	25.2% ±1.3	23.9% ±0.1	24.8% ±<0.1
65 and over	8,973 ±542	28.4% ±1.7	15.6% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $57,774 ±$4,050, and income per person $35,658 ±$2,794, 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 Delta County by income, ACS 2020–2024
Household income	Households	Share	Colorado	United States
Under $25,000	2,722 ±410	21.0% ±3.1	11.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	2,895 ±385	22.3% ±2.9	13.6% ±0.2	16.7% ±<0.1
$50,000 to $74,999	2,463 ±301	19.0% ±2.3	14.6% ±0.2	15.5% ±<0.1
$75,000 to $99,999	1,748 ±256	13.5% ±1.9	12.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,611 ±291	12.4% ±2.2	19.2% ±0.2	17.5% ±<0.1
$150,000 to $199,999	670 ±175	5.2% ±1.3	11.7% ±0.2	9.6% ±<0.1
$200,000 or more	850 ±191	6.6% ±1.5	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 Delta County by age, ACS 2020–2024
Age	Below poverty	Rate	Colorado	United States
All ages	4,283 ±619	14.0% ±2.0	9.4% ±0.2	12.5% ±0.1
Under 18	1,084 ±262	18.3% ±4.2	11.1% ±0.3	16.1% ±0.1
18 to 59	1,739 ±295	13.2% ±2.2	9.1% ±0.2	11.6% ±0.1
60 and over	1,460 ±249	12.7% ±2.1	8.7% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Delta County, ACS 2020–2024
Measure	Delta County	Colorado	United States
Housing units	15,025 ±39	2,589,053 ±653	143,775,355 ±10,234
Occupied	86.2% ±2.2	91.7% ±0.2	89.9% ±0.1
Vacant	13.8% ±2.2	8.3% ±0.2	10.1% ±0.1
Owner occupied	77.9% ±2.0	66.2% ±0.3	65.2% ±0.3
Renter occupied	22.1% ±3.0	33.8% ±0.3	34.8% ±0.1
Median home value	$343,200 ±$13,461	$539,400 ±$2,069	$332,700 ±$236
Median gross rent	$1,121 ±$84	$1,761 ±$7	$1,413 ±$2
Median year built	1979 ±2	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 Delta County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Colorado	United States
Hispanic or Latino	4,571 ±0	14.5% ±<0.1	22.5% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	25,202 ±279	79.8% ±0.9	64.8% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	206 ±57	0.7% ±0.2	3.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	167 ±54	0.5% ±0.2	3.2% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	70 ±34	0.2% ±0.1	0.4% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 37	0% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	141 to 633	0.4% to 2.0%	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	981 ±164	3.1% ±0.5	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 Delta County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Colorado	United States
Born in the state	16,200 ±647	51.3% ±2.0	41.2% ±0.2	57.3% ±<0.1
Born in another state	14,095 ±557	44.6% ±1.8	47.2% ±0.2	26.9% ±<0.1
Born a citizen outside the states	43 to 159	0.1% to 0.5%	1.7% ±0.1	1.7% ±<0.1
Born abroad	1,202 ±317	3.8% ±1.0	9.8% ±0.1	14.1% ±<0.1
Naturalized citizens	830 ±263	2.6% ±0.8	4.7% ±0.1	7.4% ±<0.1
Not citizens	372 ±150	1.2% ±0.5	5.2% ±0.1	6.8% ±<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%.

Delta County among the counties of Colorado

18th of 64 by population, July 2025. Every one is listed on the Colorado page.

Counties of Colorado near Delta County in population, July 2025
County	July 2025	Change since 2020
Garfield County	63,474	+2.7%
La Plata County	56,898	+2.2%
Eagle County	54,291	−2.5%
Fremont County	50,039	+2.4%
Montrose County	44,591	+4.1%
Delta County	32,178	+3.6%
Summit County	31,517	+0.9%
Elbert County	30,534	+16.5%
Morgan County	30,306	+4.2%
Montezuma County	26,678	+3.0%
Routt County	25,329	+2.0%

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