Lake County, Montana
Located in Montana, Lake County has a population of 32,561 residents and a median age of 44.3 years, making it the #1,408 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 17.2%. The median home value is $421,800, and the median household income is $63,360, which is 16% below the national median.
Demographics
Lake County has a population of 32,561, making it the #1,408 most populous county in the US. The median age is 44.3 years, which is 13.9% 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 Lake County is $63,360, ranking #1,760 out of 3,222 counties — 15.7% below the national median. The poverty rate is 17.2% and unemployment stands at 5.7%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Lake County is $421,800 (+49.6% vs national). Renters pay a median of $901/mo and the homeownership rate is 75.0%.
Median Home Value Trend
Rankings →Household Type
Education
In Lake County, 31.5% of adults age 25+ hold a bachelor's degree or higher, which is 6.5% below the national average, ranking #655 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Lake County is 75.8 years. 19.2% of adults report poor or fair health and 15.5% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
18.7% of adults in Lake County smoke , 33.9% are obese , and 21.4% report excessive drinking. The drug overdose death rate is 30.3 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Lake County is 6.9 per 100,000 and the suicide rate is 34.8 per 100,000. Motor vehicle deaths occur at a rate of 25.4 per 100,000.
Homicide Rate Trend
Families & Children
18.0% of children in Lake County live in poverty . The teen birth rate is 22.3 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Lake County is 72.6%. The mean commute time is 25.2 min, which is 8.8% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Lake County voted Republican with a margin of 19.9%. The vote was 38.5% Dem / 58.4% Rep. Compared to 2020, the margin shifted 5.4 toward Republicans .
Vote Share Over Time
About Lake County, Montana
Lake County, Montana has a total population of 32,561, making it the 1,408th most populous county in the United States. The median age in Lake County is 44.3 years, which is 13.9% above the national median of 38.9 years.
The median household income in Lake County is $63,360, which ranks #1,760 of 3,222 counties nationwide. This is 15.7% below the national median of $75,149. The poverty rate is 17.2%, higher than the national rate of 12.6%. The unemployment rate stands at 5.7%.
The median home value in Lake County is $421,800, 49.6% above the national median. Renters in Lake County pay a median gross rent of $901 per month. The homeownership rate is 75.0%, compared to the national rate of 64.4%.
In Lake County, 31.5% of residents aged 25 and older hold a bachelor's degree or higher, 6.5% below the national average of 33.7%. Health insurance coverage stands at 85.5% of the population. The average commute time for workers is 25.2 min.
Lake County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 64.6% of the population, followed by American Indian (non-Hispanic) (19.6%) and Two or More Races (10.2%).
All data for Lake 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.