Flathead County, Montana
Located in Montana, Flathead County has a population of 110,695 residents and a median age of 42.2 years, making it the #570 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.3%. The median home value is $535,500, and the median household income is $73,925, which is 2% below the national median.
Demographics
Flathead County has a population of 110,695, making it the #570 most populous county in the US. The median age is 42.2 years, which is 8.5% above 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 Flathead County is $73,925, ranking #922 out of 3,222 counties — 1.6% below the national median. The poverty rate is 9.3% and unemployment stands at 2.9%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Flathead County is $535,500 (+90.0% vs national). Renters pay a median of $1,142/mo and the homeownership rate is 72.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Flathead County, 37.2% of adults age 25+ hold a bachelor's degree or higher, which is 10.3% above the national average, ranking #372 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Flathead County is 77.4 years. 16.6% of adults report poor or fair health and 11.5% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.0% of adults in Flathead County smoke , 30.2% are obese , and 26.0% report excessive drinking. The drug overdose death rate is 15.6 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Flathead County is 3.4 per 100,000 and the suicide rate is 28.2 per 100,000. Motor vehicle deaths occur at a rate of 17.5 per 100,000.
Homicide Rate Trend
Families & Children
9.8% of children in Flathead County live in poverty and the infant mortality rate is 4.3 per 1,000 live births. The teen birth rate is 16.1 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Flathead County is 75.9%. The mean commute time is 21.8 min, which is 20.8% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Flathead County voted Republican with a margin of 33.8%. The vote was 31.8% Dem / 65.6% Rep. Compared to 2020, the margin shifted 3.8 toward Republicans .
Vote Share Over Time
About Flathead County, Montana
Flathead County, Montana has a total population of 110,695, making it the 570th most populous county in the United States. The median age in Flathead County is 42.2 years, which is 8.5% above the national median of 38.9 years.
The median household income in Flathead County is $73,925, which ranks #922 of 3,222 counties nationwide. This is 1.6% below the national median of $75,149. The poverty rate is 9.3%, lower than the national rate of 12.6%. The unemployment rate stands at 2.9%.
The median home value in Flathead County is $535,500, 90.0% above the national median. Renters in Flathead County pay a median gross rent of $1,142 per month. The homeownership rate is 72.4%, compared to the national rate of 64.4%.
In Flathead County, 37.2% of residents aged 25 and older hold a bachelor's degree or higher, 10.3% above the national average of 33.7%. Health insurance coverage stands at 90.0% of the population. The average commute time for workers is 21.8 min.
Flathead County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 90.0% of the population, followed by Two or More Races (4.0%) and Hispanic or Latino (3.7%).
All data for Flathead 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.