Demographics of San Miguel County, Colorado

San Miguel County, Colorado had 7,753 people on July 1, 2025, by the Census Bureau’s estimate: −300 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.

San Miguel County, in four figures

7,753
Population: July 1, 2025, Vintage 2025 estimate.; −3.7%
Change since July 2020: −300 people.; 43.3 ±1.2
Median age: ACS 2020–⁠2024.; $79,024 ±$10,732
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.

San Miguel County, Colorado's population shrank 3.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of San Miguel 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).

Source: The Census Bureau

About this chart

The figures

San Miguel County, Colorado's population shrank 3.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of San Miguel 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	8,053	100.0	100.0
2021	8,086	100.4	100.2
2022	8,009	99.5	100.7
2023	7,874	97.8	101.6
2024	7,818	97.1	102.5
2025	7,753	96.3	103.1

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Population of San Miguel 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	8,053	−15	+5	0	−20
2021	8,086	+33	+27	+4	0
2022	8,009	−77	+12	+16	−102
2023	7,874	−135	+14	+18	−174
2024	7,818	−56	+23	+24	−105
2025	7,753	−65	+27	+10	−103

Age, 2020–2024

The median age is 43.3 ±1.2: for men 41.6 ±1.3 and for women 46.9 ±2.8. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in San Miguel County by age, ACS 2020–2024
Age	People	Share	Colorado	United States
Under 5	201 ±70	2.5% ±0.9	5.3% ±<0.1	5.6% ±<0.1
5 to 17	1,224 ±404	15.4% ±5.1	15.7% ±0.1	16.3% ±<0.1
18 to 24	314 ±112	3.9% ±1.4	9.1% ±0.1	9.1% ±<0.1
25 to 44	2,375 ±295	29.8% ±3.7	30.3% ±0.1	26.9% ±<0.1
45 to 64	2,373 ±192	29.8% ±2.4	23.9% ±0.1	24.8% ±<0.1
65 and over	1,481 ±203	18.6% ±2.5	15.6% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $79,024 ±$10,732, and income per person $76,078 ±$9,677, 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 San Miguel County by income, ACS 2020–2024
Household income	Households	Share	Colorado	United States
Under $25,000	857 ±366	18.6% ±7.9	11.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	606 ±175	13.2% ±3.7	13.6% ±0.2	16.7% ±<0.1
$50,000 to $74,999	757 ±263	16.4% ±5.7	14.6% ±0.2	15.5% ±<0.1
$75,000 to $99,999	513 ±168	11.1% ±3.6	12.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	669 ±209	14.5% ±4.5	19.2% ±0.2	17.5% ±<0.1
$150,000 to $199,999	276 ±102	6.0% ±2.2	11.7% ±0.2	9.6% ±<0.1
$200,000 or more	926 ±201	20.1% ±4.3	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 San Miguel County by age, ACS 2020–2024
Age	Below poverty	Rate	Colorado	United States
All ages	367 to 1,105	4.6% to 13.9%	9.4% ±0.2	12.5% ±0.1
Under 18	25 to 725	2.9% to 49.9%	11.1% ±0.3	16.1% ±0.1
18 to 59	242 ±110	5.4% ±2.4	9.1% ±0.2	11.6% ±0.1
60 and over	44 to 194	2.3% to 9.6%	8.7% ±0.2	11.0% ±<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%.

Housing, 2020–2024

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Housing in San Miguel County, ACS 2020–2024
Measure	San Miguel County	Colorado	United States
Housing units	6,656 ±22	2,589,053 ±653	143,775,355 ±10,234
Occupied	69.2% ±3.3	91.7% ±0.2	89.9% ±0.1
Vacant	30.8% ±3.4	8.3% ±0.2	10.1% ±0.1
Owner occupied	63.0% ±3.9	66.2% ±0.3	65.2% ±0.3
Renter occupied	37.0% ±6.1	33.8% ±0.3	34.8% ±0.1
Median home value	$720,700 ±$194,671	$539,400 ±$2,069	$332,700 ±$236
Median gross rent	$1,149 ±$57	$1,761 ±$7	$1,413 ±$2
Median year built	1995 ±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 San Miguel County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Colorado	United States
Hispanic or Latino	931 ±0	11.7% ±<0.1	22.5% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	6,690 ±26	84.0% ±0.3	64.8% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	12 to 154	0.2% to 1.9%	3.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 105	0% to 1.3%	3.2% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 27	0% to 0.3%	0.4% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 19	0% to 0.2%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 15	0% to 0.2%	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	197 ±71	2.5% ±0.9	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 San Miguel County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Colorado	United States
Born in the state	2,039 ±470	25.6% ±5.9	41.2% ±0.2	57.3% ±<0.1
Born in another state	5,374 ±390	67.4% ±4.9	47.2% ±0.2	26.9% ±<0.1
Born a citizen outside the states	31 to 255	0.4% to 3.2%	1.7% ±0.1	1.7% ±<0.1
Born abroad	197 to 627	2.5% to 7.9%	9.8% ±0.1	14.1% ±<0.1
Naturalized citizens	80 to 256	1.0% to 3.2%	4.7% ±0.1	7.4% ±<0.1
Not citizens	48 to 440	0.6% to 5.5%	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%.

San Miguel County among the counties of Colorado

40th of 64 by population, July 2025. Every one is listed on the Colorado page.

Counties of Colorado near San Miguel County in population, July 2025
County	July 2025	Change since 2020
Moffat County	13,122	−1.1%
Prowers County	11,884	−1.1%
Rio Grande County	11,087	−3.9%
Yuma County	9,896	−0.8%
Clear Creek County	8,994	−3.9%
San Miguel County	7,753	−3.7%
Lake County	7,552	+1.9%
Conejos County	7,529	+1.0%
Kit Carson County	7,069	+0.1%
Huerfano County	7,011	+2.7%
Saguache County	6,732	+5.3%

Elsewhere on the site

Rankings this appears in

No. 2 Counties in Colorado by median home value
No. 2 Counties in Colorado by per capita income
No. 6 Counties by per capita income
No. 15 Counties by median home value
No. 15 Counties in Colorado by median household income
No. 18 Counties in Colorado by median age

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

Compiled automatically from Census Bureau population estimates — counties and Puerto Rico municipios, with components of change and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026