Demographics of Weld County, Colorado

Weld County, Colorado had 378,426 people on July 1, 2025, by the Census Bureau’s estimate: +46,992 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.

Weld County, in four figures

378,426
Population: July 1, 2025, Vintage 2025 estimate.; +14.2%
Change since July 2020: +46,992 people.; 35.3 ±0.1
Median age: ACS 2020–⁠2024.; $97,097 ±$2,383
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.

Weld County, Colorado's population grew 14.2% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Weld 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

Weld County, Colorado's population grew 14.2% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Weld 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	331,434	100.0	100.0
2021	339,891	102.6	100.2
2022	350,793	105.8	100.7
2023	360,971	108.9	101.6
2024	371,280	112.0	102.5
2025	378,426	114.2	103.1

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Population of Weld 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	331,434	+2,453	+516	+9	+2,050
2021	339,891	+8,457	+2,145	+179	+6,256
2022	350,793	+10,902	+2,065	+1,074	+7,386
2023	360,971	+10,178	+2,587	+1,392	+6,109
2024	371,280	+10,309	+2,655	+1,849	+5,753
2025	378,426	+7,146	+2,915	+371	+3,857

Age, 2020–2024

The median age is 35.3 ±0.1: for men 35.2 ±0.1 and for women 35.5 ±0.1. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Weld County by age, ACS 2020–2024
Age	People	Share	Colorado	United States
Under 5	23,770 ±192	6.8% ±0.1	5.3% ±<0.1	5.6% ±<0.1
5 to 17	65,502 ±1,372	18.7% ±0.4	15.7% ±0.1	16.3% ±<0.1
18 to 24	30,968 ±1,049	8.8% ±0.3	9.1% ±0.1	9.1% ±<0.1
25 to 44	105,431 ±1,517	30.1% ±0.4	30.3% ±0.1	26.9% ±<0.1
45 to 64	79,372 ±1,255	22.7% ±0.4	23.9% ±0.1	24.8% ±<0.1
65 and over	45,353 ±1,246	12.9% ±0.4	15.6% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $97,097 ±$2,383, and income per person $43,312 ±$965, 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 Weld County by income, ACS 2020–2024
Household income	Households	Share	Colorado	United States
Under $25,000	13,142 ±982	10.6% ±0.8	11.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	17,480 ±1,182	14.1% ±0.9	13.6% ±0.2	16.7% ±<0.1
$50,000 to $74,999	18,036 ±1,039	14.5% ±0.8	14.6% ±0.2	15.5% ±<0.1
$75,000 to $99,999	15,438 ±975	12.4% ±0.8	12.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	27,585 ±1,294	22.2% ±1.0	19.2% ±0.2	17.5% ±<0.1
$150,000 to $199,999	16,083 ±1,021	12.9% ±0.8	11.7% ±0.2	9.6% ±<0.1
$200,000 or more	16,523 ±904	13.3% ±0.7	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 Weld County by age, ACS 2020–2024
Age	Below poverty	Rate	Colorado	United States
All ages	32,991 ±2,610	9.6% ±0.8	9.4% ±0.2	12.5% ±0.1
Under 18	9,653 ±1,103	11.0% ±1.2	11.1% ±0.3	16.1% ±0.1
18 to 59	17,600 ±1,384	9.1% ±0.7	9.1% ±0.2	11.6% ±0.1
60 and over	5,738 ±591	9.0% ±0.9	8.7% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Weld County, ACS 2020–2024
Measure	Weld County	Colorado	United States
Housing units	129,637 ±75	2,589,053 ±653	143,775,355 ±10,234
Occupied	95.9% ±0.5	91.7% ±0.2	89.9% ±0.1
Vacant	4.1% ±0.5	8.3% ±0.2	10.1% ±0.1
Owner occupied	76.0% ±0.9	66.2% ±0.3	65.2% ±0.3
Renter occupied	24.0% ±0.9	33.8% ±0.3	34.8% ±0.1
Median home value	$471,700 ±$4,027	$539,400 ±$2,069	$332,700 ±$236
Median gross rent	$1,539 ±$41	$1,761 ±$7	$1,413 ±$2
Median year built	2001 ±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 Weld County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Colorado	United States
Hispanic or Latino	108,498 ±0	31.0% ±<0.1	22.5% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	217,386 ±880	62.0% ±0.3	64.8% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	4,506 ±450	1.3% ±0.1	3.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	5,609 ±505	1.6% ±0.1	3.2% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	1,022 ±203	0.3% ±0.1	0.4% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	321 ±100	0.1% ±<0.1	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	1,808 ±587	0.5% ±0.2	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	11,246 ±944	3.2% ±0.3	4.6% ±0.1	4.3% ±<0.1

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 Weld County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Colorado	United States
Born in the state	185,550 ±3,370	53.0% ±1.0	41.2% ±0.2	57.3% ±<0.1
Born in another state	128,064 ±2,702	36.5% ±0.8	47.2% ±0.2	26.9% ±<0.1
Born a citizen outside the states	4,943 ±951	1.4% ±0.3	1.7% ±0.1	1.7% ±<0.1
Born abroad	31,839 ±1,804	9.1% ±0.5	9.8% ±0.1	14.1% ±<0.1
Naturalized citizens	13,518 ±1,245	3.9% ±0.4	4.7% ±0.1	7.4% ±<0.1
Not citizens	18,321 ±1,393	5.2% ±0.4	5.2% ±0.1	6.8% ±<0.1

Weld County among the counties of Colorado

7th of 64 by population, July 2025. Every one is listed on the Colorado page.

Counties of Colorado near Weld County in population, July 2025
County	July 2025	Change since 2020
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%
Broomfield County	79,174	+6.3%

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