Cass County leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 59% of adults in Cass County typically vote, near the U.S. average of about 62%. Among adults in Cass County, ~18% vote Democratic, ~41% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How Cass County compares
Among counties within 50 miles, Cass County leans more Republican than 3 of 16 neighbors.
Cass County runs about 19 points more Republican than Indiana as a whole.
Politics vary noticeably by city within Cass County. The southeast side is the most Republican-leaning (R+56) and the west side is the least Republican-leaning (R+25), a spread of about 31 points.
Why Cass 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 Cass County, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 83% of residents in Cass County drive to work alone, about 9 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and Cass County sits in the bottom quarter (about 16%, below 82% of counties).
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Cass County, IN sits below the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Cass County looks the way it does
Areas with low high-school completion turn out at lower rates. About 85% of adults in Cass County have completed high school, below 78% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Miami County, IN R+45
- Carroll County, IN R+53
- Howard County, IN R+30
- Fulton County, IN R+51
- White County, IN R+43
- Pulaski County, IN R+54
- Wabash County, IN R+48
- Clinton County, IN R+45
- Tipton County, IN R+52
- Tippecanoe County, IN D+9
Counties with Similar Populations
- Oneida County, WI R+18
- Jasper County, IA R+28
- Montgomery County, IN R+44
- Franklin County, IL R+52
- Independence County, AR R+57
- Lawrence County, MO R+60
- Marion County, IL R+47
- Newberry County, SC R+22
- Scott County, MO R+43
- Pontotoc County, OK R+44
All Local Stats
Home Services
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.