Demographics of Hill County, Montana

Hill County, Montana had 16,167 people on July 1, 2025, by the Census Bureau’s estimate: −81 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.

Hill County, in four figures

16,167
Population: July 1, 2025, Vintage 2025 estimate.; −0.5%
Change since July 2020: −81 people.; 34.5 ±0.7
Median age: ACS 2020–⁠2024.; $52,798 ±$5,536
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.

Hill County, Montana's population shrank 0.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Hill 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

Hill County, Montana's population shrank 0.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Hill 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	16,248	100.0	100.0
2021	16,195	99.7	100.2
2022	16,066	98.9	100.7
2023	16,194	99.7	101.6
2024	16,115	99.2	102.5
2025	16,167	99.5	103.1

3 more columns on a wider screen

Population of Hill 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	16,248	−39	+19	0	−53
2021	16,195	−53	+53	+4	−120
2022	16,066	−129	+10	−3	−134
2023	16,194	+128	+29	−3	+104
2024	16,115	−79	+54	−3	−127
2025	16,167	+52	+58	−7	−1

Age, 2020–2024

The median age is 34.5 ±0.7: for men 33.7 ±0.9 and for women 35.2 ±0.8. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Hill County by age, ACS 2020–2024
Age	People	Share	Montana	United States
Under 5	1,363 ±103	8.4% ±0.6	5.2% ±<0.1	5.6% ±<0.1
5 to 17	3,200 ±233	19.8% ±1.4	15.8% ±0.2	16.3% ±<0.1
18 to 24	1,593 ±202	9.9% ±1.2	9.0% ±0.2	9.1% ±<0.1
25 to 44	3,937 ±240	24.4% ±1.5	25.8% ±0.2	26.9% ±<0.1
45 to 64	3,430 ±212	21.2% ±1.3	24.1% ±0.2	24.8% ±<0.1
65 and over	2,632 ±260	16.3% ±1.6	20.1% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $52,798 ±$5,536, and income per person $29,662 ±$2,283, in 2024 dollars. The median is $72,509 ±$761 in Montana and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Hill County by income, ACS 2020–2024
Household income	Households	Share	Montana	United States
Under $25,000	1,223 ±240	19.7% ±3.8	15.0% ±0.4	14.6% ±<0.1
$25,000 to $49,999	1,605 ±264	25.9% ±4.2	19.4% ±0.5	16.7% ±<0.1
$50,000 to $74,999	1,072 ±204	17.3% ±3.2	17.3% ±0.4	15.5% ±<0.1
$75,000 to $99,999	802 ±153	12.9% ±2.4	13.6% ±0.4	12.6% ±<0.1
$100,000 to $149,999	856 ±178	13.8% ±2.8	17.4% ±0.4	17.5% ±<0.1
$150,000 to $199,999	431 ±105	6.9% ±1.7	8.2% ±0.3	9.6% ±<0.1
$200,000 or more	217 ±84	3.5% ±1.3	9.0% ±0.3	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).

2 more columns on a wider screen

Poverty rate in Hill County by age, ACS 2020–2024
Age	Below poverty	Rate	Montana	United States
All ages	3,269 ±498	20.7% ±3.2	11.5% ±0.3	12.5% ±0.1
Under 18	1,245 ±250	27.4% ±5.0	12.7% ±0.6	16.1% ±0.1
18 to 59	1,428 ±269	18.6% ±3.4	11.7% ±0.4	11.6% ±0.1
60 and over	596 ±146	16.6% ±3.9	10.3% ±0.4	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in Hill County, ACS 2020–2024
Measure	Hill County	Montana	United States
Housing units	7,234 ±27	528,419 ±3,257	143,775,355 ±10,234
Occupied	85.8% ±2.8	86.8% ±0.5	89.9% ±0.1
Vacant	14.2% ±2.8	13.2% ±0.3	10.1% ±0.1
Owner occupied	66.1% ±2.9	69.2% ±0.6	65.2% ±0.3
Renter occupied	33.9% ±3.6	30.8% ±0.4	34.8% ±0.1
Median home value	$202,600 ±$16,603	$375,800 ±$3,433	$332,700 ±$236
Median gross rent	$776 ±$57	$1,081 ±$14	$1,413 ±$2
Median year built	1971 ±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

2 more columns on a wider screen

People in Hill County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Montana	United States
Hispanic or Latino	566 ±0	3.5% ±<0.1	4.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	10,841 ±166	67.1% ±1.0	83.6% ±0.2	57.4% ±<0.1
Black alone, not Hispanic	2 to 80	< 0.1% to 0.5%	0.4% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 61	0% to 0.4%	0.8% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	3,538 ±253	21.9% ±1.6	5.3% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 16	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 228	0% to 1.4%	0.5% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,021 ±309	6.3% ±1.9	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).

2 more columns on a wider screen

People in Hill County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Montana	United States
Born in the state	11,991 ±411	74.2% ±2.5	52.1% ±0.5	57.3% ±<0.1
Born in another state	3,907 ±412	24.2% ±2.6	44.8% ±0.4	26.9% ±<0.1
Born a citizen outside the states	18 to 170	0.1% to 1.1%	0.8% ±0.1	1.7% ±<0.1
Born abroad	75 to 251	0.5% to 1.6%	2.3% ±0.1	14.1% ±<0.1
Naturalized citizens	21 to 151	0.1% to 0.9%	1.2% ±0.1	7.4% ±<0.1
Not citizens	16 to 138	0.1% to 0.9%	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%.

Hill County among the counties of Montana

12th of 56 by population, July 2025. Every one is listed on the Montana page.

Counties of Montana near Hill County in population, July 2025
County	July 2025	Change since 2020
Ravalli County	48,582	+9.4%
Silver Bow County	36,118	+2.6%
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%

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