Demographics of Mineral County, Montana

Mineral County, Montana had 5,185 people on July 1, 2025, by the Census Bureau’s estimate: +618 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.

Mineral County, in four figures

5,185
Population: July 1, 2025, Vintage 2025 estimate.; +13.5%
Change since July 2020: +618 people.; 50.0 ±0.4
Median age: ACS 2020–⁠2024.; $63,450 ±$6,481
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.

Mineral County, Montana's population grew 13.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Mineral County, Montana'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

Mineral County, Montana's population grew 13.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Mineral County, Montana'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	4,567	100.0	100.0
2021	4,865	106.5	100.2
2022	5,044	110.4	100.7
2023	5,137	112.5	101.6
2024	5,187	113.6	102.5
2025	5,185	113.5	103.1

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Population of Mineral County, Montana on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	4,567	+37	−1	0	+43
2021	4,865	+298	−33	+3	+351
2022	5,044	+179	−32	+1	+195
2023	5,137	+93	−20	−1	+111
2024	5,187	+50	−27	0	+74
2025	5,185	−2	−24	−1	+23

Age, 2020–2024

The median age is 50.0 ±0.4: for men 49.5 ±1.2 and for women 50.6 ±1.0. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Mineral County by age, ACS 2020–2024
Age	People	Share	Montana	United States
Under 5	313 ±73	6.3% ±1.5	5.2% ±<0.1	5.6% ±<0.1
5 to 17	715 ±82	14.4% ±1.7	15.8% ±0.2	16.3% ±<0.1
18 to 24	187 ±63	3.8% ±1.3	9.0% ±0.2	9.1% ±<0.1
25 to 44	1,027 ±97	20.7% ±2.0	25.8% ±0.2	26.9% ±<0.1
45 to 64	1,323 ±125	26.7% ±2.5	24.1% ±0.2	24.8% ±<0.1
65 and over	1,394 ±168	28.1% ±3.4	20.1% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $63,450 ±$6,481, and income per person $40,043 ±$6,889, in 2024 dollars. The median is $72,509 ±$761 in Montana and $80,734 ±$166 in the United States.

Households by income

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Households in Mineral County by income, ACS 2020–2024
Household income	Households	Share	Montana	United States
Under $25,000	338 ±98	15.7% ±4.5	15.0% ±0.4	14.6% ±<0.1
$25,000 to $49,999	466 ±106	21.7% ±4.8	19.4% ±0.5	16.7% ±<0.1
$50,000 to $74,999	440 ±96	20.5% ±4.3	17.3% ±0.4	15.5% ±<0.1
$75,000 to $99,999	278 ±80	12.9% ±3.7	13.6% ±0.4	12.6% ±<0.1
$100,000 to $149,999	343 ±87	16.0% ±4.0	17.4% ±0.4	17.5% ±<0.1
$150,000 to $199,999	218 ±106	10.1% ±4.9	8.2% ±0.3	9.6% ±<0.1
$200,000 or more	27 to 107	1.3% to 5.0%	9.0% ±0.3	13.4% ±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%.

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 Mineral County by age, ACS 2020–2024
Age	Below poverty	Rate	Montana	United States
All ages	658 ±181	13.5% ±3.7	11.5% ±0.3	12.5% ±0.1
Under 18	210 ±72	21.9% ±7.0	12.7% ±0.6	16.1% ±0.1
18 to 59	317 ±109	15.3% ±5.1	11.7% ±0.4	11.6% ±0.1
60 and over	131 ±54	7.1% ±2.9	10.3% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Mineral County, ACS 2020–2024
Measure	Mineral County	Montana	United States
Housing units	2,572 ±16	528,419 ±3,257	143,775,355 ±10,234
Occupied	83.6% ±3.9	86.8% ±0.5	89.9% ±0.1
Vacant	16.4% ±3.8	13.2% ±0.3	10.1% ±0.1
Owner occupied	81.1% ±3.9	69.2% ±0.6	65.2% ±0.3
Renter occupied	18.9% ±3.4	30.8% ±0.4	34.8% ±0.1
Median home value	$364,300 ±$24,903	$375,800 ±$3,433	$332,700 ±$236
Median gross rent	$801 ±$127	$1,081 ±$14	$1,413 ±$2
Median year built	1983 ±6	1981 ±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 Mineral County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Montana	United States
Hispanic or Latino	185 ±0	3.7% ±<0.1	4.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	4,411 ±31	88.9% ±0.6	83.6% ±0.2	57.4% ±<0.1
Black alone, not Hispanic	0 to 22	0% to 0.4%	0.4% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 33	0% to 0.7%	0.8% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	33 to 109	0.7% to 2.2%	5.3% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 11	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 15	0% to 0.3%	0.5% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	263 ±55	5.3% ±1.1	4.7% ±0.2	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 Mineral County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Montana	United States
Born in the state	2,035 ±198	41.0% ±4.0	52.1% ±0.5	57.3% ±<0.1
Born in another state	2,809 ±201	56.6% ±4.1	44.8% ±0.4	26.9% ±<0.1
Born a citizen outside the states	0 to 78	0% to 1.6%	0.8% ±0.1	1.7% ±<0.1
Born abroad	37 to 115	0.7% to 2.3%	2.3% ±0.1	14.1% ±<0.1
Naturalized citizens	31 to 109	0.6% to 2.2%	1.2% ±0.1	7.4% ±<0.1
Not citizens	0 to 15	0% to 0.3%	1.1% ±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%.

Mineral County among the counties of Montana

37th of 56 by population, July 2025. Every one is listed on the Montana page.

Counties of Montana near Mineral County in population, July 2025
County	July 2025	Change since 2020
Teton County	6,496	+3.9%
Pondera County	6,072	+3.2%
Chouteau County	5,865	−0.8%
Musselshell County	5,582	+17.6%
Toole County	5,211	+4.9%
Mineral County	5,185	+13.5%
Phillips County	4,203	−0.1%
Sweet Grass County	3,762	+2.4%
Granite County	3,658	+10.6%
Sheridan County	3,436	−2.9%
Fallon County	2,959	−2.3%

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