45204 leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.
About 47% of adults in 45204 typically vote, below the U.S. average of about 62%. Among adults in 45204, ~29% vote Democratic, ~18% Republican, and ~53% don't vote. The map below shows estimated turnout by block group.
How 45204 compares
Among zip codes within 15 miles, 45204 leans more Democratic than 43 of 70 neighbors.
45204 runs about 33 points more Democratic than Ohio as a whole. Ohio leans Republican overall, while 45204 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 45204. The northwest side runs the most Democratic (D+53) and the southwest side runs the most Republican (R+4), a spread of about 57 points.
Why 45204 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 45204, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 83% of residents in 45204 live in densely developed areas, about 47 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 56% of adults in 45204 have never been married, above 97% of zip codes. 45204 runs against the grain of Ohio, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 45204, OH sits in the bottom tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 45204 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 45204 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 42%, about 20 points below the Ohio average of 61%. Renters vote less often than owners, and about 56% of households in 45204 rent, about 31 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 36% of adults in 45204 report food insecurity, above 97% 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.