Giles County is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 65% of adults in Giles County typically vote, near the U.S. average of about 62%. Among adults in Giles County, ~14% vote Democratic, ~50% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How Giles County compares
Among counties within 50 miles, Giles County leans more Republican than 8 of 14 neighbors.
Giles County runs about 27 points more Republican than Tennessee as a whole.
Politics vary noticeably by city within Giles County. The southwest side is the most Republican-leaning (R+72) and the west side is the least Republican-leaning (R+60), a spread of about 12 points.
Why Giles 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 Giles County, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 82% of residents in Giles County drive to work alone, about 8 points above the U.S. average of 74%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Giles County, TN sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Giles County looks the way it does
Turnout in Giles 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
- Lawrence County, TN R+68
- Marshall County, TN R+54
- Lincoln County, TN R+64
- Limestone County, AL R+45
- Maury County, TN R+39
- Lewis County, TN R+67
- Bedford County, TN R+51
- Madison County, AL R+5
- Moore County, TN R+69
- Lauderdale County, AL R+47
Counties with Similar Populations
- Powhatan County, VA R+38
- Mecklenburg County, VA R+17
- Ottawa County, OK R+53
- Iberville Parish, LA R+6
- Caledonia County, VT R+9
- McPherson County, KS R+44
- Knox County, KY R+65
- Austin County, TX R+54
- Randolph County, IL R+45
- Wayne County, GA R+52
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.