Eugene is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 66% of adults in Eugene typically vote, near the U.S. average of about 62%. Among adults in Eugene, ~13% vote Democratic, ~53% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How Eugene compares
Among cities within 25 miles, Eugene leans more Republican than 49 of 85 neighbors.
Eugene runs about 42 points more Republican than Indiana as a whole.
Why Eugene 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 Eugene, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 12% of adults in Eugene hold a bachelor's degree, about 10 points below the Indiana average of 22%. Car-dependent areas vote Republican, and about 86% of residents in Eugene drive to work alone, above 84% of cities.
Never-married share and voter turnout
Places with a low never-married share tend to turn out at a higher rate; Eugene, IN sits below the national average on this measure.
Why turnout in Eugene looks the way it does
Turnout in Eugene 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 Cities
- Cayuga, IN R+59
- Meeks, IL R+54
- Lodi, IN R+61
- Perrysville, IN R+62
- Newport, IN R+64
- Georgetown, IL R+44
- Himrod, IL R+50
- Midway, IL R+54
- Olivet, IL R+54
Cities with Similar Populations
- South Ripley, NY R+47
- Jack, MS D+8
- Hoyes, MD R+61
- Glasgow, IA R+49
- Cameron, MT R+23
- Lunenburg, VA R+25
- Menomonie Junction, WI R+25
- Waconda, OR R+42
- Center Point, AR R+75
- Garth, MI R+31
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.