Roosevelt County, Montana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 21st-largest in Montana
The population of Roosevelt County, Montana is 10,665 as of the 2023 American Community Survey, making it the 21st-largest county in Montana. The median household income is $53,125, the median home value is $119,400, and the median age is 30.5.
The population of Roosevelt County has declined 2.4% since 2010 (10,444 → 10,197), a -0.17% annualized rate.
10,665
Population
-0.17%
Annual growth
5
People / sq mi
$53,125
Median Income
$119,400
Median Home Value
Roosevelt County covers 2,355 sq mi of land at 4.5 people per square mile.
About Roosevelt County, MT
Roosevelt County is a county in Montana with a population of 10,665. It ranks #21 among counties in Montana by population. The median age is 30.5, younger than the national median. The population is 50.4% male and 49.6% female.
The median household income in Roosevelt County is $53,125, below the US median of $74,580. 25.4% of residents live below the federal poverty level. Home values sit at a median of $119,400, with monthly rent averaging $707. The homeownership rate of 68.6% is higher than the national rate of 64.8%.
Educational attainment in Roosevelt County reflects 19.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 3.1% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 19.0 minutes each way.
Roosevelt County Population History (2010-2024)
The county of Roosevelt County had a population of 10,444 in 2010 and 10,197 in 2024, a -2.4% growth over 14 years. The peak was 11,416 in 2015. Average annual growth rate: -0.16%.
10,197
Population (2024)
10,444
Population (2010)
11,416
Peak (2015)
-0.16%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 10,444 |
| 2011 | 10,496 |
| 2012 | 10,854 |
| 2013 | 11,087 |
| 2014 | 11,283 |
| 2015 | 11,416 |
| 2016 | 11,223 |
| 2017 | 11,156 |
| 2018 | 11,084 |
| 2019 | 11,027 |
| 2020 | 10,802 |
| 2021 | 10,788 |
| 2022 | 10,514 |
| 2023 | 10,327 |
| 2024 | 10,197 |
Race & Ethnicity
| White | 33.2% |
| Black or African American | 0.1% |
| Asian | 0.2% |
| Hispanic or Latino (any race) | 64.3% |
| Two or More Races | 0.0% |
Age & Sex
30.5
Median Age
49.6%
Female
50.4%
Male
11.9%
Age 65+
Age Distribution
Children (under 15): 27.4% · Seniors (65+): 11.9%
Income & Poverty
| Median household income | $53,125$-16,797 vs state |
| Mean household income | $64,512 |
| Per-capita income | $21,143 |
| Poverty rate | 25.4%+18.3% vs state |
| Unemployment rate | 4.5% |
| Employment-to-population | 48.5% |
Top Industries by Employment
The largest employment sector in Roosevelt County is professional & business services, accounting for 27.8% of workers.
How residents commute
0.1%
Drive alone
7.6%
Carpool
79.2%
Public transit
3.1%
Work from home
19.0 min
Avg commute
Housing
$119,400$-218,700 vs state
Median home value
$707
Median rent
68.6%
Homeownership rate
4,058
Total housing units
73.6%
Occupied
26.4%
Vacant
31.4%
Renter-occupied
Social & access
70.4%
With health insurance
77.3%
With broadband internet
19.3%
Foreign-born
6.7%
Veterans (18+)
13.7%
With a disability
98.8%
Speak language other than English at home
Education
91.8%
High School+
19.9%
Bachelor's+
Largest cities in Montana
Other counties in Montana
Part of Montana
Metro areas in Montana
County rankings
Frequently Asked Questions
Roosevelt County, Montana has a population of 10,665 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 21st-largest county in Montana. Population density is 5 people per square mile.
The population of Roosevelt County has declined 2.4% since 2010 (10,444 → 10,197), a -0.17% annualized rate.
The median household income in Roosevelt County, Montana is $53,125, with mean (average) household income of $64,512 and per-capita income of $21,143. 25.4% of residents live below the federal poverty level.
In Roosevelt County, the largest racial and ethnic groups are Hispanic or Latino (64.3%), White (33.2%), Asian (0.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Roosevelt County, Montana is 30.5 years. Residents are 49.6% female and 50.4% male.
The median home value in Roosevelt County is $119,400 and median monthly rent is $707. 68.6% of occupied housing units are owner-occupied. The county has 4,058 total housing units, 26.4% of which are vacant.
The largest employment sector in Roosevelt County, Montana is professional, scientific, and management services, employing 27.8% of workers. The unemployment rate is 4.5%.
Billings is among the largest cities associated with Roosevelt County, Montana, with a population of 118,321.
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Statewide data for Montana
Population, race, income, age, and trends across Montana
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.