Clinton County leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 65% of adults in Clinton County typically vote, near the U.S. average of about 62%. Among adults in Clinton County, ~18% vote Democratic, ~47% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How Clinton County compares
Among counties within 50 miles, Clinton County leans more Republican than 13 of 19 neighbors.
Clinton County runs about 26 points more Republican than Indiana as a whole.
Politics vary noticeably by city within Clinton County. The southeast side is the most Republican-leaning (R+60) and the south side is the least Republican-leaning (R+39), a spread of about 21 points.
Why Clinton 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 Clinton County, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 83% of residents in Clinton County drive to work alone, about 9 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and Clinton County sits in the bottom quarter (about 16%, below 81% of counties).
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Clinton County, IN sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Clinton County looks the way it does
Turnout in Clinton County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Carroll County, IN R+53
- Tippecanoe County, IN D+9
- Boone County, IN R+19
- Howard County, IN R+30
- Tipton County, IN R+52
- Montgomery County, IN R+44
- Hamilton County, IN R+5
- Cass County, IN R+38
- White County, IN R+43
- Hendricks County, IN R+20
Counties with Similar Populations
- Panola County, MS Even
- Pickens County, GA R+59
- Lee County, GA R+38
- Jefferson County, IN R+43
- Bureau County, IL R+27
- Morton County, ND R+49
- Caroline County, MD R+34
- Lawrence County, AL R+63
- Hot Spring County, AR R+51
- Gibson County, IN R+49
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.