45378 is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 64% of adults in 45378 typically vote, near the U.S. average of about 62%. Among adults in 45378, ~11% vote Democratic, ~53% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How 45378 compares
Among zip codes within 15 miles, 45378 leans more Republican than 16 of 22 neighbors.
45378 runs about 54 points more Republican than Ohio as a whole.
Why 45378 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 45378, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in 45378 hold a bachelor's degree, about 14 points below the Ohio average of 23%. Car-dependent areas vote Republican, and about 88% of residents in 45378 drive to work alone, above 93% of zip codes. A high family-household share predicts Republican voting, and about 74% of households in 45378 are family households, above 76% of zip codes.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 45378, OH sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 45378 looks the way it does
Homeowners vote more often than renters. About 96% of households in 45378 own their home, about 19 points above the Ohio average of 77%. High high-school completion lines up with higher turnout, and about 97% of adults in 45378 have completed high school, above 90% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.