45239 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 67% of adults in 45239 typically vote, near the U.S. average of about 62%. Among adults in 45239, ~40% vote Democratic, ~27% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 45239 compares
Among zip codes within 15 miles, 45239 leans more Democratic than 41 of 69 neighbors.
45239 runs about 31 points more Democratic than Ohio as a whole. Ohio leans Republican overall, while 45239 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 45239. The south side runs the most Democratic (D+49) and the southwest side runs the most Republican (R+6), a spread of about 55 points.
Why 45239 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 45239, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 97% of residents in 45239 live in densely developed areas, about 61 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 41% of adults in 45239 have never been married, above 89% of zip codes. 45239 runs against the grain of Ohio, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 45239, OH sits in the top tenth nationally on this measure.
Why turnout in 45239 looks the way it does
Turnout in 45239 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 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.