Nez Perce County, Idaho
Located in Idaho, Nez Perce County has a population of 42,697 residents and a median age of 41.2 years, making it the #1,151 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 12.2%. The median home value is $334,700, and the median household income is $72,599, which is 3% below the national median.
Demographics
Nez Perce County has a population of 42,697, making it the #1,151 most populous county in the US. The median age is 41.2 years, which is 5.9% 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 Nez Perce County is $72,599, ranking #1,006 out of 3,222 counties — 3.4% below the national median. The poverty rate is 12.2% and unemployment stands at 2.6%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Nez Perce County is $334,700 (+18.7% vs national). Renters pay a median of $1,015/mo and the homeownership rate is 70.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Nez Perce County, 27.1% of adults age 25+ hold a bachelor's degree or higher, which is 19.4% below the national average, ranking #1,001 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Nez Perce County is 75.1 years. 16.0% of adults report poor or fair health and 9.3% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
13.7% of adults in Nez Perce County smoke , 35.5% are obese , and 20.4% report excessive drinking. The drug overdose death rate is 31.7 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Nez Perce County is 3.8 per 100,000 and the suicide rate is 23.2 per 100,000. Motor vehicle deaths occur at a rate of 17.7 per 100,000.
Homicide Rate Trend
Families & Children
13.0% of children in Nez Perce County live in poverty . The teen birth rate is 14.7 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Nez Perce County is 66.2%. The mean commute time is 18.3 min, which is 33.7% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Nez Perce County voted Republican with a margin of 38.7%. The vote was 29.4% Dem / 68.1% Rep. Compared to 2020, the margin shifted 5.1 toward Republicans .
Vote Share Over Time
About Nez Perce County, Idaho
Nez Perce County, Idaho has a total population of 42,697, making it the 1,151st most populous county in the United States. The median age in Nez Perce County is 41.2 years, which is 5.9% above the national median of 38.9 years.
The median household income in Nez Perce County is $72,599, which ranks #1,006 of 3,222 counties nationwide. This is 3.4% below the national median of $75,149. The poverty rate is 12.2%, lower than the national rate of 12.6%. The unemployment rate stands at 2.6%.
The median home value in Nez Perce County is $334,700, 18.7% above the national median. Renters in Nez Perce County pay a median gross rent of $1,015 per month. The homeownership rate is 70.4%, compared to the national rate of 64.4%.
In Nez Perce County, 27.1% of residents aged 25 and older hold a bachelor's degree or higher, 19.4% below the national average of 33.7%. Health insurance coverage stands at 92.3% of the population. The average commute time for workers is 18.3 min.
Nez Perce 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 (4.4%) and Two or More Races (4.2%).
All data for Nez Perce 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.