Hardin County leans Republican by roughly 28 points: about 36% of voters vote Democratic and 64% Republican.
About 68% of adults in Hardin County typically vote, above the U.S. average of about 62%. Among adults in Hardin County, ~24% vote Democratic, ~44% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Hardin County compares
Among counties within 50 miles, Hardin County leans more Republican than 3 of 21 neighbors.
Politically, Hardin County sits close to the rest of Kentucky.
Politics vary noticeably by city within Hardin County. The southwest side is the most Republican-leaning (R+61) and the north side is the least Republican-leaning (R+7), a spread of about 53 points.
Why Hardin 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 Hardin County, not a ranked or complete list of what matters most.
Hardin County votes Republican even though it is densely developed (about 51%, far above the Kentucky average of 18%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Hardin County, KY sits above the national average on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Hardin County looks the way it does
Turnout in Hardin 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
- Larue County, KY R+58
- Meade County, KY R+49
- Bullitt County, KY R+48
- Nelson County, KY R+46
- Breckinridge County, KY R+58
- Grayson County, KY R+63
- Hart County, KY R+61
- Jefferson County, KY D+20
- Harrison County, IN R+50
- Marion County, KY R+50
Counties with Similar Populations
- Cowlitz County, WA R+18
- Mercer County, PA R+27
- Androscoggin County, ME R+12
- Douglas County, OR R+29
- Craighead County, AR R+27
- Hanover County, VA R+21
- LaSalle County, IL R+21
- Warren County, NJ R+16
- Terrebonne Parish, LA R+42
- Delaware County, IN R+11
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.