Clarks Hill, SC Political Map | Democrat & Republican Areas in Clarks Hill

By the BestNeighborhood data science team. Last updated May 2026.

Clarks Hill is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.

 

About 80% of adults in Clarks Hill typically vote, above the U.S. average of about 62%. Among adults in Clarks Hill, ~18% vote Democratic, ~62% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.

How Clarks Hill compares

Among cities within 25 miles, Clarks Hill leans more Republican than 38 of 42 neighbors.

Clarks Hill runs about 35 points more Republican than South Carolina as a whole.

Politics vary noticeably by neighborhood within Clarks Hill. The northeast side is the most Republican-leaning (R+66) and the south side is the least Republican-leaning (R+37), a spread of about 29 points.

Why Clarks Hill 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 Clarks Hill, not a ranked or complete list of what matters most.

Car-dependent areas vote Republican. About 88% of residents in Clarks Hill drive to work alone, about 14 points above the U.S. average of 74%.

Homeownership and voter turnout

Places with homeowner-heavy households tend to turn out at a higher rate; Clarks Hill, SC sits in the top tenth nationally on this measure.

Why turnout in Clarks Hill looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Clarks Hill is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 61%, modestly above similar-sized cities (around 54%). Homeowners vote more often than renters, and about 95% of households in Clarks Hill own their home, about 20 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.

Sources and methodology

Precinct-level voting records used to fit the model come from South Carolina State Election Commission, 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.