Kootenai County, Idaho
Located in Idaho, Kootenai County has a population of 181,996 residents and a median age of 40.9 years, making it the #377 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.0%. The median home value is $518,700, and the median household income is $81,861, which is 9% above the national median.
Demographics
Kootenai County has a population of 181,996, making it the #377 most populous county in the US. The median age is 40.9 years, which is 5.1% 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 Kootenai County is $81,861, ranking #511 out of 3,222 counties — 8.9% above the national median. The poverty rate is 9.0% and unemployment stands at 3.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Kootenai County is $518,700 (+84.0% vs national). Renters pay a median of $1,492/mo and the homeownership rate is 71.3%.
Median Home Value Trend
Rankings →Household Type
Education
In Kootenai County, 30.0% of adults age 25+ hold a bachelor's degree or higher, which is 11.1% below the national average, ranking #767 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Kootenai County is 78.4 years. 14.4% of adults report poor or fair health and 9.3% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
13.3% of adults in Kootenai County smoke , 34.3% are obese , and 21.2% report excessive drinking. The drug overdose death rate is 20.4 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Kootenai County is 2.6 per 100,000 and the suicide rate is 22.4 per 100,000. Motor vehicle deaths occur at a rate of 10.3 per 100,000.
Homicide Rate Trend
Families & Children
10.8% of children in Kootenai County live in poverty and the infant mortality rate is 4.8 per 1,000 live births. The teen birth rate is 12.5 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Kootenai County is 72.6%. The mean commute time is 24.9 min, which is 9.9% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Kootenai County voted Republican with a margin of 51.8%. The vote was 23% Dem / 74.8% Rep. Compared to 2020, the margin shifted 9.0 toward Republicans .
Vote Share Over Time
About Kootenai County, Idaho
Kootenai County, Idaho has a total population of 181,996, making it the 377th most populous county in the United States. The median age in Kootenai County is 40.9 years, which is 5.1% above the national median of 38.9 years.
The median household income in Kootenai County is $81,861, which ranks #511 of 3,222 counties nationwide. This is 8.9% above the national median of $75,149. The poverty rate is 9.0%, lower than the national rate of 12.6%. The unemployment rate stands at 3.3%.
The median home value in Kootenai County is $518,700, 84.0% above the national median. Renters in Kootenai County pay a median gross rent of $1,492 per month. The homeownership rate is 71.3%, compared to the national rate of 64.4%.
In Kootenai County, 30.0% of residents aged 25 and older hold a bachelor's degree or higher, 11.1% below the national average of 33.7%. Health insurance coverage stands at 90.6% of the population. The average commute time for workers is 24.9 min.
Kootenai County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 85.6% of the population, followed by Two or More Races (6.2%) and Hispanic or Latino (5.7%).
All data for Kootenai County, Idaho 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.