Demographics of Glacier County, Montana

Glacier County, Montana had 13,463 people on July 1, 2025, by the Census Bureau’s estimate: −273 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.

Glacier County, in four figures

13,463
Population: July 1, 2025, Vintage 2025 estimate.; −2.0%
Change since July 2020: −273 people.; 33.4 ±0.6
Median age: ACS 2020–⁠2024.; $46,875 ±$11,273
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.

Glacier County, Montana's population shrank 2.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Glacier 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

Glacier County, Montana's population shrank 2.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Glacier 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	13,736	100.0	100.0
2021	13,710	99.8	100.2
2022	13,609	99.1	100.7
2023	13,550	98.6	101.6
2024	13,515	98.4	102.5
2025	13,463	98.0	103.1

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Population of Glacier 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	13,736	−37	−1	+1	−36
2021	13,710	−26	−35	0	−2
2022	13,609	−101	−41	+1	−52
2023	13,550	−59	−17	−2	−38
2024	13,515	−35	−2	+4	−38
2025	13,463	−52	−2	−1	−49

Age, 2020–2024

The median age is 33.4 ±0.6: for men 32.8 ±0.8 and for women 34.0 ±0.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Glacier County by age, ACS 2020–2024
Age	People	Share	Montana	United States
Under 5	1,048 ±118	7.7% ±0.9	5.2% ±<0.1	5.6% ±<0.1
5 to 17	3,086 ±237	22.6% ±1.7	15.8% ±0.2	16.3% ±<0.1
18 to 24	1,277 ±169	9.4% ±1.2	9.0% ±0.2	9.1% ±<0.1
25 to 44	3,514 ±213	25.8% ±1.6	25.8% ±0.2	26.9% ±<0.1
45 to 64	2,910 ±248	21.3% ±1.8	24.1% ±0.2	24.8% ±<0.1
65 and over	1,802 ±174	13.2% ±1.3	20.1% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $46,875 ±$11,273, and income per person $23,240 ±$1,986, 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 Glacier County by income, ACS 2020–2024
Household income	Households	Share	Montana	United States
Under $25,000	1,276 ±206	29.7% ±4.6	15.0% ±0.4	14.6% ±<0.1
$25,000 to $49,999	920 ±169	21.4% ±3.8	19.4% ±0.5	16.7% ±<0.1
$50,000 to $74,999	686 ±156	16.0% ±3.6	17.3% ±0.4	15.5% ±<0.1
$75,000 to $99,999	407 ±103	9.5% ±2.4	13.6% ±0.4	12.6% ±<0.1
$100,000 to $149,999	609 ±189	14.2% ±4.4	17.4% ±0.4	17.5% ±<0.1
$150,000 to $199,999	267 ±88	6.2% ±2.0	8.2% ±0.3	9.6% ±<0.1
$200,000 or more	56 to 196	1.3% to 4.6%	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 Glacier County by age, ACS 2020–2024
Age	Below poverty	Rate	Montana	United States
All ages	4,178 ±528	31.1% ±3.9	11.5% ±0.3	12.5% ±0.1
Under 18	1,253 ±213	31.2% ±4.6	12.7% ±0.6	16.1% ±0.1
18 to 59	2,199 ±355	32.8% ±4.7	11.7% ±0.4	11.6% ±0.1
60 and over	726 ±151	26.9% ±5.1	10.3% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Glacier County, ACS 2020–2024
Measure	Glacier County	Montana	United States
Housing units	5,350 ±38	528,419 ±3,257	143,775,355 ±10,234
Occupied	80.2% ±3.2	86.8% ±0.5	89.9% ±0.1
Vacant	19.8% ±3.2	13.2% ±0.3	10.1% ±0.1
Owner occupied	63.7% ±4.8	69.2% ±0.6	65.2% ±0.3
Renter occupied	36.3% ±4.6	30.8% ±0.4	34.8% ±0.1
Median home value	$165,100 ±$13,645	$375,800 ±$3,433	$332,700 ±$236
Median gross rent	$548 ±$107	$1,081 ±$14	$1,413 ±$2
Median year built	1974 ±2	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 Glacier County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Montana	United States
Hispanic or Latino	389 ±0	2.9% ±<0.1	4.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	4,029 ±43	29.5% ±0.3	83.6% ±0.2	57.4% ±<0.1
Black alone, not Hispanic	0 to 56	0% to 0.4%	0.4% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	81 ±6	0.6% ±<0.1	0.8% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	8,643 ±155	63.4% ±1.1	5.3% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 84	0% to 0.6%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 71	0% to 0.5%	0.5% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	407 ±143	3.0% ±1.0	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 Glacier County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Montana	United States
Born in the state	11,128 ±310	81.6% ±2.3	52.1% ±0.5	57.3% ±<0.1
Born in another state	2,250 ±347	16.5% ±2.5	44.8% ±0.4	26.9% ±<0.1
Born a citizen outside the states	4 to 300	< 0.1% to 2.2%	0.8% ±0.1	1.7% ±<0.1
Born abroad	15 to 199	0.1% to 1.5%	2.3% ±0.1	14.1% ±<0.1
Naturalized citizens	6 to 64	< 0.1% to 0.5%	1.2% ±0.1	7.4% ±<0.1
Not citizens	0 to 159	0% to 1.2%	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%.

Glacier County among the counties of Montana

14th of 56 by population, July 2025. Every one is listed on the Montana page.

Counties of Montana near Glacier County in population, July 2025
County	July 2025	Change since 2020
Lake County	33,392	+6.9%
Lincoln County	22,328	+13.1%
Park County	18,214	+5.7%
Hill County	16,167	−0.5%
Sanders County	14,062	+12.9%
Glacier County	13,463	−2.0%
Jefferson County	13,329	+9.8%
Big Horn County	12,752	−2.5%
Custer County	12,034	+1.5%
Fergus County	11,825	+3.1%
Carbon County	11,466	+9.1%

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