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

Granville leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.

 
Granville, OH block-group political-lean map
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About 78% of adults in Granville typically vote, above the U.S. average of about 62%. Among adults in Granville, ~34% vote Democratic, ~44% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.

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

Among cities within 25 miles, Granville leans more Republican than 12 of 89 neighbors.

Politically, Granville sits close to the rest of Ohio.

Politics vary noticeably by neighborhood within Granville. The west side runs the most Democratic (D+5) and the southwest side runs the most Republican (R+27), a spread of about 32 points.

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

Granville votes Republican even though it is densely developed (about 29%, about 7 points below the U.S. average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 76% of households in Granville are family households, above 79% of cities.

Food insecurity and voter turnout

Places with low food insecurity tend to turn out at a higher rate; Granville, OH sits in the bottom tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.

Why turnout in Granville looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Granville is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 73%, about 13 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 99% of adults in Granville have completed high school, above 97% of cities. 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.