43604 is a Democratic stronghold. About 80% of voters here vote Democratic and 20% Republican.
About 39% of adults in 43604 typically vote, below the U.S. average of about 62%. Among adults in 43604, ~31% vote Democratic, ~8% Republican, and ~61% don't vote. The map below shows estimated turnout by block group.
How 43604 compares
Among zip codes within 15 miles, 43604 leans more Democratic than 36 of 40 neighbors.
43604 runs about 72 points more Democratic than Ohio as a whole. Ohio leans Republican overall, while 43604 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 43604. The southwest side is the most Democratic-leaning (D+71) and the south side is the least Democratic-leaning (D+51), a spread of about 20 points.
Why 43604 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 43604, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 94% of residents in 43604 live in densely developed areas, about 58 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 58% of adults in 43604 have never been married, above 98% of zip codes. 43604 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; 43604, OH sits in the top tenth 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 43604 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 43604 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 38%, about 23 points below the Ohio average of 61%. Renters vote less often than owners, and about 76% of households in 43604 rent, compared to around 46% in nearby zip codes. High food insecurity lines up with lower turnout, and about 45% of adults in 43604 report food insecurity, 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.