Vermillion County leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 73% of adults in Vermillion County typically vote, above the U.S. average of about 62%. Among adults in Vermillion County, ~18% vote Democratic, ~55% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How Vermillion County compares
Among counties within 50 miles, Vermillion County leans more Republican than 8 of 15 neighbors.
Vermillion County runs about 31 points more Republican than Indiana as a whole.
Politics vary noticeably by city within Vermillion County. The northeast side is the most Republican-leaning (R+64) and the southeast side is the least Republican-leaning (R+36), a spread of about 27 points.
Why Vermillion County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Vermillion County, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Vermillion County, about 95% of residents are non-Hispanic white, about 23 points above the U.S. average of 72%; about 17% of adults hold a bachelor's degree, about 5 points below the Indiana average of 22%. Car-dependent areas vote Republican, and about 85% of residents in Vermillion County drive to work alone, above 93% of counties.
Never-married share and voter turnout
Places with a low never-married share tend to turn out at a higher rate; Vermillion County, IN sits in the bottom quarter nationally on this measure.
Why turnout in Vermillion County looks the way it does
Turnout in Vermillion County sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Parke County, IN R+59
- Edgar County, IL R+50
- Vigo County, IN R+12
- Clay County, IN R+52
- Fountain County, IN R+58
- Vermilion County, IL R+22
- Putnam County, IN R+46
- Clark County, IL R+53
- Montgomery County, IN R+44
- Warren County, IN R+58
Counties with Similar Populations
- Redwood County, MN R+47
- Williamsburg City, VA D+43
- Clark County, IL R+53
- Barbour County, WV R+60
- Moniteau County, MO R+60
- Brown County, IN R+43
- Floyd County, VA R+47
- Washington County, AL R+46
- De Witt County, IL R+43
- Tipton County, IN R+52
Sources and methodology
Precinct-level voting records used to fit the model come from Indiana Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.