South Williamson is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 64% of adults in South Williamson typically vote, near the U.S. average of about 62%. Among adults in South Williamson, ~12% vote Democratic, ~52% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How South Williamson compares
Among cities within 25 miles, South Williamson leans more Republican than 11 of 138 neighbors.
South Williamson runs about 31 points more Republican than Kentucky as a whole.
Why South Williamson leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for South Williamson, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In South Williamson, about 99% of residents are non-Hispanic white, about 26 points above the U.S. average of 72%; about 16% of adults hold a bachelor's degree, about 12 points below the U.S. average of 28%. Car-dependent areas vote Republican, and about 88% of residents in South Williamson drive to work alone, above 89% of cities. A high family-household share predicts Republican voting, and about 79% of households in South Williamson are family households, above 86% of cities.
Income per capita and voter turnout
Places with high per-capita income tend to turn out at a higher rate; South Williamson, KY sits in the top quarter nationally on this measure.
Why turnout in South Williamson looks the way it does
Turnout in South Williamson 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 Cities
- Belfry, KY R+70
- Williamson, WV R+50
- Forest Hills, KY R+67
- Chattaroy, WV R+63
- Borderland, WV R+77
- Huddy, KY R+66
- Rawl, WV R+78
- Sidney, KY R+73
- Hardy, KY R+69
- Stone, KY R+68
Cities with Similar Populations
- Bexley, MS R+72
- Johns, NC R+20
- Lanesboro, PA R+50
- Perdue, MS R+82
- Staves, AR R+79
- McGrath, MN R+44
- Owasco, NY R+9
- Porterville, MS D+34
- Carroll, NC R+3
- Grigsby, TX R+77
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.