Congress, OH Political Map | Democrat & Republican Areas in Congress

Congress is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.

 
Congress, OH block-group political-lean map
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About 64% of adults in Congress typically vote, near the U.S. average of about 62%. Among adults in Congress, ~13% vote Democratic, ~52% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.

Congress, OH block-group voter-turnout map
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How Congress compares

Among cities within 25 miles, Congress leans more Republican than 66 of 99 neighbors.

Congress runs about 49 points more Republican than Ohio as a whole.

Why Congress leans the way it does

This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Congress, not a ranked or complete list of what matters most.

Areas with many family households vote Republican. About 81% of households in Congress are family households, about 15 points above the U.S. average of 67%.

Walkability and Republican lean

Places with a low walkability score tend to lean Republican; Congress, OH sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Congress looks the way it does

Homeowners vote more often than renters. About 93% of households in Congress own their home, about 16 points above the Ohio average of 77%. Learn more about the findings and methodology on the political spectrum map.

Cities 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.