South Vienna is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 74% of adults in South Vienna typically vote, above the U.S. average of about 62%. Among adults in South Vienna, ~17% vote Democratic, ~57% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How South Vienna compares
Among cities within 25 miles, South Vienna leans more Republican than 43 of 84 neighbors.
South Vienna runs about 44 points more Republican than Ohio as a whole.
Why South Vienna leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in South Vienna. The lean here lands roughly where demographic data alone would predict.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; South Vienna, OH sits in the top quarter nationally on this measure.
Why turnout in South Vienna looks the way it does
Homeowners vote more often than renters. About 91% of households in South Vienna own their home, about 14 points above the Ohio average of 77%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Swanders, OH R+56
- Plattsburg, OH R+56
- Catawba, OH R+55
- Tradersville, OH R+51
- Summerford, OH R+25
- South Charleston, OH R+56
- Villa, OH R+35
- Mutual, OH R+56
- Florence, OH R+58
- Powhatton, OH R+49
Cities with Similar Populations
- Hawthorne, NV R+47
- Walters, OK R+63
- Graysville, TN R+66
- Monroeville, IN R+52
- New Hill, NC D+4
- Lake Crystal, MN R+23
- Cana, VA R+66
- Enfield, NH D+6
- Sun City, CA R+15
- Crab Orchard, KY R+72
Sources and methodology
Precinct-level voting records used to fit the model come from Ohio 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.