45221 leans heavily Democratic by roughly 50 points: about 75% of voters vote Democratic and 25% Republican.
About 26% of adults in 45221 typically vote, below the U.S. average of about 62%. Among adults in 45221, ~19% vote Democratic, ~7% Republican, and ~74% don't vote. The map below shows estimated turnout by block group.
How 45221 compares
Among zip codes within 15 miles, 45221 leans more Democratic than 59 of 74 neighbors.
45221 runs about 60 points more Democratic than Ohio as a whole. Ohio leans Republican overall, while 45221 is one of the few Democratic-leaning pockets.
Why 45221 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 45221, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 45221 live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and more than 99% of adults in 45221 have never been married, in the top fraction of zip codes. 45221 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; 45221, OH sits in the top tenth nationally on this measure.
Why turnout in 45221 looks the way it does
Renters vote less often than owners. About 72% of households in 45221 rent, about 47 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 31% of adults in 45221 report food insecurity, above 94% of zip codes. Low high-school completion lines up with lower turnout, and more than 99% of adults in 45221 have completed high school, in the top fraction 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.