Columbia County, Wisconsin
Located in Wisconsin, Columbia County has a population of 58,272 residents and a median age of 43.7 years, making it the #916 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 7.8%. The median home value is $283,200, and the median household income is $85,351, which is 14% above the national median.
Demographics
Columbia County has a population of 58,272, making it the #916 most populous county in the US. The median age is 43.7 years, which is 12.3% 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 Columbia County is $85,351, ranking #413 out of 3,222 counties — 13.6% above the national median. The poverty rate is 7.8% and unemployment stands at 3.1%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Columbia County is $283,200 (+0.5% vs national). Renters pay a median of $978/mo and the homeownership rate is 76.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Columbia County, 26.0% of adults age 25+ hold a bachelor's degree or higher, which is 22.9% below the national average, ranking #1,113 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Columbia County is 78.5 years. 14.4% of adults report poor or fair health and 6.1% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
16.5% of adults in Columbia County smoke , 38.7% are obese , and 25.3% report excessive drinking. The drug overdose death rate is 28.1 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Columbia County is 2.5 per 100,000 and the suicide rate is 18.9 per 100,000. Motor vehicle deaths occur at a rate of 15.1 per 100,000.
Suicide Rate Trend
Families & Children
9.2% of children in Columbia County live in poverty . The teen birth rate is 8.1 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Columbia County is 76.4%. The mean commute time is 28.5 min, which is 3.2% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Columbia County voted Republican with a margin of 4.6%. The vote was 47% Dem / 51.6% Rep. Compared to 2020, the margin shifted 3.1 toward Republicans .
Vote Share Over Time
About Columbia County, Wisconsin
Columbia County, Wisconsin has a total population of 58,272, making it the 916th most populous county in the United States. The median age in Columbia County is 43.7 years, which is 12.3% above the national median of 38.9 years.
The median household income in Columbia County is $85,351, which ranks #413 of 3,222 counties nationwide. This is 13.6% above the national median of $75,149. The poverty rate is 7.8%, lower than the national rate of 12.6%. The unemployment rate stands at 3.1%.
The median home value in Columbia County is $283,200, 0.5% above the national median. Renters in Columbia County pay a median gross rent of $978 per month. The homeownership rate is 76.7%, compared to the national rate of 64.4%.
In Columbia County, 26.0% of residents aged 25 and older hold a bachelor's degree or higher, 22.9% below the national average of 33.7%. Health insurance coverage stands at 95.0% of the population. The average commute time for workers is 28.5 min.
Columbia County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 90.3% of the population, followed by Hispanic or Latino (4.1%) and Two or More Races (2.6%).
All data for Columbia 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.