Henry County is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 86% of adults in Henry County typically vote, above the U.S. average of about 62%. Among adults in Henry County, ~20% vote Democratic, ~66% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Henry County compares
Among counties within 50 miles, Henry County leans more Republican than 12 of 15 neighbors.
Henry County runs about 42 points more Republican than Ohio as a whole.
Politics vary noticeably by city within Henry County. The south side is the most Republican-leaning (R+61) and the west side is the least Republican-leaning (R+46), a spread of about 15 points.
Why Henry County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Henry County, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 85% of residents in Henry County drive to work alone, about 11 points above the U.S. average of 74%.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Henry County, OH sits in the top tenth nationally on this measure.
Why turnout in Henry County looks the way it does
Homeowners vote more often than renters. About 83% of households in Henry County own their home, about 6 points above the Ohio average of 77%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Fulton County, OH R+45
- Defiance County, OH R+43
- Putnam County, OH R+66
- Wood County, OH R+11
- Williams County, OH R+50
- Paulding County, OH R+57
- Lucas County, OH D+17
- Hancock County, OH R+32
- Lenawee County, MI R+27
- Allen County, OH R+32
Counties with Similar Populations
- Upson County, GA R+30
- Jennings County, IN R+56
- Del Norte County, CA R+15
- Union County, MS R+63
- Jackson County, WV R+57
- Henderson County, TN R+65
- Adams County, OH R+64
- Logan County, KY R+56
- San Jacinto County, TX R+57
- Orleans County, VT R+17
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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.