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

Delta leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.

 
Delta, OH block-group political-lean map
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About 90% of adults in Delta typically vote, above the U.S. average of about 62%. Among adults in Delta, ~26% vote Democratic, ~64% Republican, and ~10% don't vote. The map below shows estimated turnout by block group.

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

Among cities within 25 miles, Delta leans more Republican than 27 of 84 neighbors.

Delta runs about 30 points more Republican than Ohio as a whole.

Politics vary noticeably by neighborhood within Delta. The northwest side is the most Republican-leaning (R+53) and the east side is the least Republican-leaning (R+36), a spread of about 17 points.

Why Delta 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 Delta, not a ranked or complete list of what matters most.

Delta votes Republican even though it is densely developed (about 23%, modestly below the Ohio average of 34%). State and regional patterns outweigh the Democratic lean that density usually predicts here.

Park access and Republican lean

Places with low park coverage tend to lean Republican; Delta, OH sits below the national average on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.

Why turnout in Delta looks the way it does

Turnout in Delta 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.

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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.