Missoula County, Montana
Located in Montana, Missoula County has a population of 120,672 residents and a median age of 37.1 years, making it the #534 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 10.1%. The median home value is $472,100, and the median household income is $75,598, which is 1% above the national median.
Demographics
Missoula County has a population of 120,672, making it the #534 most populous county in the US. The median age is 37.1 years, which is 4.6% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Missoula County is $75,598, ranking #806 out of 3,222 counties — 0.6% above the national median. The poverty rate is 10.1% and unemployment stands at 3.7%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Missoula County is $472,100 (+67.5% vs national). Renters pay a median of $1,190/mo and the homeownership rate is 58.8%.
Median Home Value Trend
Rankings →Household Type
Education
In Missoula County, 47.4% of adults age 25+ hold a bachelor's degree or higher, which is 40.7% above the national average, ranking #133 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Missoula County is 78.6 years. 13.9% of adults report poor or fair health and 9.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
13.8% of adults in Missoula County smoke , 29.2% are obese , and 28.9% report excessive drinking. The drug overdose death rate is 16.8 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Missoula County is 3.2 per 100,000 and the suicide rate is 22.6 per 100,000. Motor vehicle deaths occur at a rate of 14.8 per 100,000.
Homicide Rate Trend
Families & Children
9.4% of children in Missoula County live in poverty and the infant mortality rate is 4.5 per 1,000 live births. The teen birth rate is 7.1 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Missoula County is 75.1%. The mean commute time is 20.1 min, which is 27.3% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Missoula County voted Democratic with a margin of 21.5%. The vote was 59% Dem / 37.5% Rep. Compared to 2020, the margin shifted 2.1 toward Republicans .
Vote Share Over Time
About Missoula County, Montana
Missoula County, Montana has a total population of 120,672, making it the 534th most populous county in the United States. The median age in Missoula County is 37.1 years, which is 4.6% below the national median of 38.9 years.
The median household income in Missoula County is $75,598, which ranks #806 of 3,222 counties nationwide. This is 0.6% above the national median of $75,149. The poverty rate is 10.1%, lower than the national rate of 12.6%. The unemployment rate stands at 3.7%.
The median home value in Missoula County is $472,100, 67.5% above the national median. Renters in Missoula County pay a median gross rent of $1,190 per month. The homeownership rate is 58.8%, compared to the national rate of 64.4%.
In Missoula County, 47.4% of residents aged 25 and older hold a bachelor's degree or higher, 40.7% above the national average of 33.7%. Health insurance coverage stands at 93.9% of the population. The average commute time for workers is 20.1 min.
Missoula County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 85.5% of the population, followed by Hispanic or Latino (5.1%) and Two or More Races (5.0%).
All data for Missoula County, Montana comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.