Trempealeau County, Wisconsin
Located in Wisconsin, Trempealeau County has a population of 30,839 residents and a median age of 39.9 years, making it the #1,456 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.9%. The median home value is $216,700, and the median household income is $76,313, which is 2% above the national median.
Demographics
Trempealeau County has a population of 30,839, making it the #1,456 most populous county in the US. The median age is 39.9 years, which is 2.6% 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 Trempealeau County is $76,313, ranking #759 out of 3,222 counties — 1.5% above the national median. The poverty rate is 9.9% and unemployment stands at 2.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Trempealeau County is $216,700 (-23.1% vs national). Renters pay a median of $949/mo and the homeownership rate is 74.0%.
Median Home Value Trend
Rankings →Household Type
Education
In Trempealeau County, 20.9% of adults age 25+ hold a bachelor's degree or higher, which is 38.0% below the national average, ranking #1,847 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Trempealeau County is 79.4 years. 15.7% of adults report poor or fair health and 7.6% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.7% of adults in Trempealeau County smoke , 39.1% are obese , and 24.4% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 16.4 per 100,000. Motor vehicle deaths occur at a rate of 14.3 per 100,000.
Suicide Rate Trend
Families & Children
14.1% of children in Trempealeau County live in poverty and the infant mortality rate is 7.7 per 1,000 live births. The teen birth rate is 17.8 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Trempealeau County is 71.8%. The mean commute time is 25.3 min, which is 8.3% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Trempealeau County voted Republican with a margin of 21.4%. The vote was 38.7% Dem / 60.1% Rep. Compared to 2020, the margin shifted 4.9 toward Republicans .
Vote Share Over Time
About Trempealeau County, Wisconsin
Trempealeau County, Wisconsin has a total population of 30,839, making it the 1,456th most populous county in the United States. The median age in Trempealeau County is 39.9 years, which is 2.6% above the national median of 38.9 years.
The median household income in Trempealeau County is $76,313, which ranks #759 of 3,222 counties nationwide. This is 1.5% above the national median of $75,149. The poverty rate is 9.9%, lower than the national rate of 12.6%. The unemployment rate stands at 2.3%.
The median home value in Trempealeau County is $216,700, 23.1% below the national median. Renters in Trempealeau County pay a median gross rent of $949 per month. The homeownership rate is 74.0%, compared to the national rate of 64.4%.
In Trempealeau County, 20.9% of residents aged 25 and older hold a bachelor's degree or higher, 38.0% below the national average of 33.7%. Health insurance coverage stands at 91.3% of the population. The average commute time for workers is 25.3 min.
Trempealeau County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 83.9% of the population, followed by Hispanic or Latino (13.0%) and Two or More Races (2.1%).
All data for Trempealeau County, Wisconsin 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.