Henry County is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 72% of adults in Henry County typically vote, above the U.S. average of about 62%. Among adults in Henry County, ~17% vote Democratic, ~55% Republican, and ~28% 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 17 of 30 neighbors.
Henry County runs about 21 points more Republican than Kentucky as a whole.
Politics vary noticeably by city within Henry County. The east side is the most Republican-leaning (R+59) and the south side is the least Republican-leaning (R+40), a spread of about 20 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.
Areas with low college attainment vote Republican. About 15% of adults in Henry County hold a bachelor's degree, about 13 points below the U.S. average of 28%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Henry County, KY sits in the bottom tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Henry County looks the way it does
Turnout in Henry County 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.
Nearby Counties
- Trimble County, KY R+57
- Shelby County, KY R+32
- Oldham County, KY R+23
- Carroll County, KY R+51
- Owen County, KY R+63
- Franklin County, KY R+19
- Jefferson County, IN R+43
- Spencer County, KY R+56
- Switzerland County, IN R+63
- Gallatin County, KY R+57
Counties with Similar Populations
- Jefferson County, IA R+4
- Pemiscot County, MO R+30
- Aitkin County, MN R+33
- Mercer County, IL R+33
- Carroll County, IL R+34
- Jefferson County, GA D+5
- Nottoway County, VA R+9
- Grand County, CO R+6
- Leon County, TX R+69
- Floyd County, IA R+30
Sources and methodology
Precinct-level voting records used to fit the model come from Kentucky State Board of 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.