45231 leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About 77% of adults in 45231 typically vote, above the U.S. average of about 62%. Among adults in 45231, ~52% vote Democratic, ~25% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 45231 compares
Among zip codes within 15 miles, 45231 leans more Democratic than 50 of 70 neighbors.
45231 runs about 45 points more Democratic than Ohio as a whole. Ohio leans Republican overall, while 45231 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 45231. The southwest side is the most Democratic-leaning (D+72) and the northwest side is the least Democratic-leaning (D+17), a spread of about 55 points.
Why 45231 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 45231, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 45231 is about 45%, about 27 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 36% of adults in 45231 have never been married, above 81% of zip codes. 45231 runs against the grain of Ohio, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 45231, OH sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 45231 looks the way it does
Turnout in 45231 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.