Boise County, Idaho
Located in Idaho, Boise County has a population of 8,273 residents and a median age of 53.4 years, making it the #2,630 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 7.7%. The median home value is $476,100, and the median household income is $78,774, which is 5% above the national median.
Demographics
Boise County has a population of 8,273, making it the #2,630 most populous county in the US. The median age is 53.4 years, which is 37.3% 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 Boise County is $78,774, ranking #635 out of 3,222 counties — 4.8% above the national median. The poverty rate is 7.7% and unemployment stands at 3.4%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Boise County is $476,100 (+68.9% vs national). Renters pay a median of $850/mo and the homeownership rate is 90.3%.
Median Home Value Trend
Rankings →Household Type
Education
In Boise County, 31.2% of adults age 25+ hold a bachelor's degree or higher, which is 7.5% below the national average, ranking #685 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Boise County is 79.1 years. 14.5% of adults report poor or fair health and 9.5% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
13.6% of adults in Boise County smoke , 31.2% are obese , and 20.5% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 46.5 per 100,000. Motor vehicle deaths occur at a rate of 33.1 per 100,000.
Suicide Rate Trend
Families & Children
15.5% of children in Boise County live in poverty . The teen birth rate is 16.6 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Boise County is 76.8%. The mean commute time is 41.6 min, which is 50.9% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Boise County voted Republican with a margin of 54.2%. The vote was 21.7% Dem / 75.9% Rep. Compared to 2020, the margin shifted 6.9 toward Republicans .
Vote Share Over Time
About Boise County, Idaho
Boise County, Idaho has a total population of 8,273, making it the 2,630th most populous county in the United States. The median age in Boise County is 53.4 years, which is 37.3% above the national median of 38.9 years.
The median household income in Boise County is $78,774, which ranks #635 of 3,222 counties nationwide. This is 4.8% above the national median of $75,149. The poverty rate is 7.7%, lower than the national rate of 12.6%. The unemployment rate stands at 3.4%.
The median home value in Boise County is $476,100, 68.9% above the national median. Renters in Boise County pay a median gross rent of $850 per month. The homeownership rate is 90.3%, compared to the national rate of 64.4%.
In Boise County, 31.2% of residents aged 25 and older hold a bachelor's degree or higher, 7.5% below the national average of 33.7%. Health insurance coverage stands at 90.7% of the population. The average commute time for workers is 41.6 min.
Boise County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 83.5% of the population, followed by Two or More Races (6.5%) and Hispanic or Latino (5.1%).
All data for Boise 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.