Hardeman County leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 63% of adults in Hardeman County typically vote, near the U.S. average of about 62%. Among adults in Hardeman County, ~27% vote Democratic, ~36% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How Hardeman County compares
Among counties within 50 miles, Hardeman County leans more Republican than 4 of 17 neighbors.
Hardeman County runs about 16 points more Democratic than Tennessee as a whole.
Politics vary noticeably by city within Hardeman County. The southwest side runs the most Democratic (D+19) and the east side runs the most Republican (R+74), a spread of about 93 points.
Why Hardeman 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 Hardeman County, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 14% of adults in Hardeman County hold a bachelor's degree, about 8 points below the Tennessee average of 22%. Rural areas vote Republican, and Hardeman County sits in the bottom quarter on density (about 12%, below 77% of counties).
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Hardeman County, TN 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 Hardeman County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Hardeman County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 48%, about 8 points below the Tennessee average of 56%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Fayette County, TN R+33
- Chester County, TN R+61
- McNairy County, TN R+71
- Haywood County, TN D+13
- Benton County, MS R+26
- Madison County, TN R+2
- Tippah County, MS R+61
- Alcorn County, MS R+59
- Crockett County, TN R+57
- Marshall County, MS R+3
Counties with Similar Populations
- Mason County, WV R+59
- Butts County, GA R+38
- Barton County, KS R+47
- Luna County, NM R+19
- Churchill County, NV R+44
- Payette County, ID R+57
- Gladwin County, MI R+42
- Benton County, IA R+36
- Pottawatomie County, KS R+46
- Salem City, VA R+21
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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.