Demographics of Hamilton city, Montana

Hamilton city, Montana had 5,451 people on July 1, 2025, by the Census Bureau’s estimate: +731 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Hamilton city, in four figures

5,451
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 5,101 ±18.; +15.5%
Change since July 2020: +731 people.; 51.8 ±6.5
Median age: ACS 2020–⁠2024.; $49,204 ±$9,323
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Hamilton city, Montana's population grew 15.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Hamilton city, 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).

Source: The Census Bureau

About this chart

The figures

Hamilton city, Montana's population grew 15.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Hamilton city, 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	4,720	100.0	100.0
2021	4,943	104.7	100.2
2022	5,142	108.9	100.7
2023	5,258	111.4	101.6
2024	5,355	113.5	102.5
2025	5,451	115.5	103.1

Population of Hamilton city, Montana on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	4,720	—
2021	4,943	+223
2022	5,142	+199
2023	5,258	+116
2024	5,355	+97
2025	5,451	+96

Age, 2020–2024

The median age is 51.8 ±6.5: for men 47.7 ±7.0 and for women 57.5 ±8.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Hamilton city by age, ACS 2020–2024
Age	People	Share	Montana	United States
Under 5	8 to 176	0.2% to 3.5%	5.2% ±<0.1	5.6% ±<0.1
5 to 17	617 ±212	12.1% ±4.2	15.8% ±0.2	16.3% ±<0.1
18 to 24	73 to 317	1.4% to 6.2%	9.0% ±0.2	9.1% ±<0.1
25 to 44	1,112 ±310	21.8% ±6.1	25.8% ±0.2	26.9% ±<0.1
45 to 64	1,337 ±333	26.2% ±6.5	24.1% ±0.2	24.8% ±<0.1
65 and over	1,748 ±376	34.3% ±7.4	20.1% ±0.2	17.2% ±<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%.

Income and poverty, 2020–2024

Median household income is $49,204 ±$9,323, and income per person $38,231 ±$5,212, 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 Hamilton city by income, ACS 2020–2024
Household income	Households	Share	Montana	United States
Under $25,000	522 ±192	19.0% ±6.7	15.0% ±0.4	14.6% ±<0.1
$25,000 to $49,999	909 ±296	33.1% ±10.3	19.4% ±0.5	16.7% ±<0.1
$50,000 to $74,999	570 ±262	20.7% ±9.3	17.3% ±0.4	15.5% ±<0.1
$75,000 to $99,999	116 to 384	4.3% to 13.9%	13.6% ±0.4	12.6% ±<0.1
$100,000 to $149,999	145 to 457	5.4% to 16.5%	17.4% ±0.4	17.5% ±<0.1
$150,000 to $199,999	8 to 150	0.3% to 5.4%	8.2% ±0.3	9.6% ±<0.1
$200,000 or more	27 to 207	1.0% to 7.5%	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 Hamilton city by age, ACS 2020–2024
Age	Below poverty	Rate	Montana	United States
All ages	433 ±184	8.8% ±3.7	11.5% ±0.3	12.5% ±0.1
Under 18	0 to 28	0% to 4.0%	12.7% ±0.6	16.1% ±0.1
18 to 59	54 to 310	2.5% to 13.6%	11.7% ±0.4	11.6% ±0.1
60 and over	121 to 381	12.7% ±6.0	10.3% ±0.4	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 Hamilton city, ACS 2020–2024
Measure	Hamilton city	Montana	United States
Housing units	3,101 ±324	528,419 ±3,257	143,775,355 ±10,234
Occupied	88.6% ±12.7	86.8% ±0.5	89.9% ±0.1
Vacant	4.5% to 18.2%	13.2% ±0.3	10.1% ±0.1
Owner occupied	55.7% ±9.5	69.2% ±0.6	65.2% ±0.3
Renter occupied	44.3% ±7.4	30.8% ±0.4	34.8% ±0.1
Median home value	$310,000 ±$51,682	$375,800 ±$3,433	$332,700 ±$236
Median gross rent	$947 ±$113	$1,081 ±$14	$1,413 ±$2
Median year built	1976 ±8	1981 ±1	1980 ±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%.

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 Hamilton city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Montana	United States
Hispanic or Latino	0 to 185	0% to 3.6%	4.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	4,746 ±208	93.0% ±4.1	83.6% ±0.2	57.4% ±<0.1
Black alone, not Hispanic	0 to 16	0% to 0.3%	0.4% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 16	0% to 0.3%	0.8% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 264	0% to 5.2%	5.3% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 16	0% to 0.3%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 16	0% to 0.3%	0.5% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	6 to 290	0.1% to 5.7%	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 Hamilton city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Montana	United States
Born in the state	1,615 ±376	31.7% ±7.4	52.1% ±0.5	57.3% ±<0.1
Born in another state	3,099 ±391	60.8% ±7.7	44.8% ±0.4	26.9% ±<0.1
Born a citizen outside the states	0 to 267	0% to 5.2%	0.8% ±0.1	1.7% ±<0.1
Born abroad	66 to 454	1.3% to 8.9%	2.3% ±0.1	14.1% ±<0.1
Naturalized citizens	0 to 279	0% to 5.5%	1.2% ±0.1	7.4% ±<0.1
Not citizens	5 to 273	0.1% to 5.4%	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%.

Hamilton city among the places of Montana

26th of 26 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Montana page.

Places of Montana near Hamilton city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Columbia Falls city	5,615 ±15
Orchard Homes CDP	5,588 ±636
Bigfork CDP	5,565 ±459
Polson city	5,428 ±23
Helena Valley Northwest CDP	5,183 ±716
Hamilton city	5,101 ±18

Sources

Census Bureau population estimates — incorporated places and New England towns — 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 — incorporated places and New England towns 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