Winneshiek County, Iowa
Located in Iowa, Winneshiek County has a population of 19,873 residents and a median age of 42.6 years, making it the #1,889 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.4%. The median home value is $259,200, and the median household income is $79,066, which is 5% above the national median.
Demographics
Winneshiek County has a population of 19,873, making it the #1,889 most populous county in the US. The median age is 42.6 years, which is 9.5% 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 Winneshiek County is $79,066, ranking #619 out of 3,222 counties — 5.2% above the national median. The poverty rate is 8.4% and unemployment stands at 2.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Winneshiek County is $259,200 (-8.1% vs national). Renters pay a median of $861/mo and the homeownership rate is 74.2%.
Median Home Value Trend
Rankings →Household Type
Education
In Winneshiek County, 31.2% of adults age 25+ hold a bachelor's degree or higher, which is 7.3% below the national average, ranking #676 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Winneshiek County is 81.8 years. 11.8% of adults report poor or fair health and 4.2% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
13.3% of adults in Winneshiek County smoke , 36.5% are obese , and 26.6% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 10.3 per 100,000. Motor vehicle deaths occur at a rate of 16.4 per 100,000.
Firearm Fatalities Trend
Families & Children
7.6% of children in Winneshiek County live in poverty . The teen birth rate is 4.2 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Winneshiek County is 74.8%. The mean commute time is 19.9 min, which is 27.9% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Winneshiek County voted Republican with a margin of 9.3%. The vote was 44.6% Dem / 53.9% Rep. Compared to 2020, the margin shifted 4.2 toward Republicans .
Vote Share Over Time
About Winneshiek County, Iowa
Winneshiek County, Iowa has a total population of 19,873, making it the 1,889th most populous county in the United States. The median age in Winneshiek County is 42.6 years, which is 9.5% above the national median of 38.9 years.
The median household income in Winneshiek County is $79,066, which ranks #619 of 3,222 counties nationwide. This is 5.2% above the national median of $75,149. The poverty rate is 8.4%, lower than the national rate of 12.6%. The unemployment rate stands at 2.3%.
The median home value in Winneshiek County is $259,200, 8.1% below the national median. Renters in Winneshiek County pay a median gross rent of $861 per month. The homeownership rate is 74.2%, compared to the national rate of 64.4%.
In Winneshiek County, 31.2% of residents aged 25 and older hold a bachelor's degree or higher, 7.3% below the national average of 33.7%. Health insurance coverage stands at 97.3% of the population. The average commute time for workers is 19.9 min.
Winneshiek County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 93.3% of the population, followed by Hispanic or Latino (3.1%) and Two or More Races (2.2%).
All data for Winneshiek County, Iowa 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.