Leo leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 85% of adults in Leo typically vote, above the U.S. average of about 62%. Among adults in Leo, ~23% vote Democratic, ~62% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Leo compares
Among cities within 25 miles, Leo leans more Republican than 10 of 73 neighbors.
Leo runs about 28 points more Republican than Indiana as a whole.
Politics vary noticeably by neighborhood within Leo. The northeast side is the most Republican-leaning (R+59) and the southwest side is the least Republican-leaning (R+38), a spread of about 21 points.
Why Leo leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Leo, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 83% of households in Leo are family households, about 17 points above the U.S. average of 67%.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Leo, IN sits in the top tenth nationally on this measure.
Why turnout in Leo looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Leo is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 96% of households in Leo own their home, about 21 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 96% of adults in Leo have completed high school, above 86% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Leo-Cedarville, IN R+47
- St. Johns, IN R+51
- Grabill, IN R+55
- Spencerville, IN R+60
- Auburn Junction, IN R+52
- Huntertown, IN R+36
- Thurman, IN R+37
- Milan Center, IN R+64
- Harlan, IN R+59
- Auburn, IN R+42
Cities with Similar Populations
- North Terre Haute, IN R+28
- New Baden, IL R+37
- Prentiss, MS D+25
- Valparaiso, FL R+41
- Pride, LA R+65
- Leonard, MI R+36
- Pekin, IN R+59
- Richmond, IL R+14
- Eagle Lake, TX R+6
- Onalaska, WA R+43
All Local Stats
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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.