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
Age is the most distinctive thing about Roosevelt County: a median age of 30.5, younger than the national median. Roosevelt County is a county in Montana with a population of 10,665. It ranks #21 among counties in Montana by population.
Earnings trail the nation, with the median household making $53,125, below the US median of $78,538. Poverty is among the highest of comparable US counties: 25.4%, above the national 12.4%. Housing is relatively affordable, with a median home value of $119,400, with typical rent around $707.
19.9% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. Home-based work is uncommon, at 3.1%, below the national 14.0%, and the average commute runs about 19 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.
More from Montana
Population 167,340
Population 122,194
Population 119,639
Population 108,445
Full rankings of Montana counties
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.