Hardin County is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About 65% of adults in Hardin County typically vote, near the U.S. average of about 62%. Among adults in Hardin County, ~10% vote Democratic, ~56% Republican, and ~34% 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 11 of 16 neighbors.
Hardin County runs about 39 points more Republican than Tennessee as a whole.
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.
Car-dependent areas vote Republican. About 84% of residents in Hardin County drive to work alone, about 10 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and Hardin County sits in the bottom quarter (about 15%, below 89% of counties).
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Hardin County, TN sits in the bottom quarter 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 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
- McNairy County, TN R+71
- Wayne County, TN R+71
- Alcorn County, MS R+59
- Chester County, TN R+61
- Decatur County, TN R+69
- Tishomingo County, MS R+76
- Henderson County, TN R+65
- Perry County, TN R+73
- Lauderdale County, AL R+47
- Prentiss County, MS R+58
Counties with Similar Populations
- Harlan County, KY R+72
- De Soto Parish, LA R+22
- Dawson County, GA R+61
- Woodford County, KY R+29
- Stephens County, GA R+53
- Yazoo County, MS D+17
- Gillespie County, TX R+56
- Mineral County, WV R+58
- King George County, VA R+23
- Carroll County, OH R+55
Sources and methodology
Precinct-level voting records used to fit the model come from Tennessee Secretary of State, Division 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.