Richland County, Montana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 19th-largest in Montana
The population of Richland County, Montana is 11,329 as of the 2023 American Community Survey, making it the 19th-largest county in Montana. The median household income is $69,578, the median home value is $259,000, and the median age is 38.0.
The population of Richland County has grown 13.0% since 2010 (9,760 → 11,028), a +0.88% annualized rate.
11,329
Population
+0.88%
Annual growth
5
People / sq mi
$69,578
Median Income
$259,000
Median Home Value
Richland County covers 2,085 sq mi of land at 5.4 people per square mile.
About Richland County, MT
Richland County is a county in Montana with a population of 11,329. It ranks #19 among counties in Montana by population. The median age is 38.0, in line with the national median. The population is 50.3% male and 49.7% female.
The median household income in Richland County is $69,578, below the US median of $74,580. 6.3% of residents live below the federal poverty level. Home values sit at a median of $259,000, with monthly rent averaging $866. The homeownership rate of 69.8% is higher than the national rate of 64.8%.
Educational attainment in Richland County reflects 19.4% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 5.1% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 20.5 minutes each way.
Richland County Population History (2010-2024)
The county of Richland County had a population of 9,760 in 2010 and 11,028 in 2024, a 13.0% growth over 14 years. The peak was 11,931 in 2015. Average annual growth rate: 0.93%.
11,028
Population (2024)
9,760
Population (2010)
11,931
Peak (2015)
0.93%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 9,760 |
| 2011 | 10,151 |
| 2012 | 10,791 |
| 2013 | 11,173 |
| 2014 | 11,555 |
| 2015 | 11,931 |
| 2016 | 11,442 |
| 2017 | 11,101 |
| 2018 | 10,955 |
| 2019 | 10,943 |
| 2020 | 11,534 |
| 2021 | 11,330 |
| 2022 | 11,191 |
| 2023 | 11,094 |
| 2024 | 11,028 |
Race & Ethnicity
| White | 90.6% |
| Black or African American | 0.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.2% |
| Two or More Races | 0.1% |
Age & Sex
38.0
Median Age
49.7%
Female
50.3%
Male
17.1%
Age 65+
Age Distribution
Children (under 15): 20.1% · Seniors (65+): 17.1%
Income & Poverty
| Median household income | $69,578$-344 vs state |
| Mean household income | $93,356 |
| Per-capita income | $37,672 |
| Poverty rate | 6.3%-0.8% vs state |
| Unemployment rate | 2.6% |
| Employment-to-population | 65.4% |
Top Industries by Employment
The largest employment sector in Richland County is professional & business services, accounting for 16.8% of workers.
How residents commute
0.0%
Drive alone
9.1%
Carpool
77.9%
Public transit
5.1%
Work from home
20.5 min
Avg commute
Housing
$259,000$-79,100 vs state
Median home value
$866
Median rent
69.8%
Homeownership rate
5,590
Total housing units
80.5%
Occupied
19.5%
Vacant
30.2%
Renter-occupied
Social & access
93.9%
With health insurance
91.6%
With broadband internet
36.5%
Foreign-born
6.0%
Veterans (18+)
11.9%
With a disability
96.6%
Speak language other than English at home
Education
96.2%
High School+
19.4%
Bachelor's+
Largest cities in Montana
Other counties in Montana
Part of Montana
Metro areas in Montana
County rankings
Frequently Asked Questions
Richland County, Montana has a population of 11,329 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 19th-largest county in Montana. Population density is 5 people per square mile.
The population of Richland County has grown 13.0% since 2010 (9,760 → 11,028), a +0.88% annualized rate.
The median household income in Richland County, Montana is $69,578, with mean (average) household income of $93,356 and per-capita income of $37,672. 6.3% of residents live below the federal poverty level.
In Richland County, the largest racial and ethnic groups are White (90.6%), Hispanic or Latino (2.2%), Black or African American (0.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Richland County, Montana is 38.0 years. Residents are 49.7% female and 50.3% male.
The median home value in Richland County is $259,000 and median monthly rent is $866. 69.8% of occupied housing units are owner-occupied. The county has 5,590 total housing units, 19.5% of which are vacant.
The largest employment sector in Richland County, Montana is professional, scientific, and management services, employing 16.8% of workers. The unemployment rate is 2.6%.
Billings is among the largest cities associated with Richland 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.