Islandton leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 63% of adults in Islandton typically vote, near the U.S. average of about 62%. Among adults in Islandton, ~19% vote Democratic, ~44% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How Islandton compares
Among cities within 25 miles, Islandton leans more Republican than 43 of 51 neighbors.
Islandton runs about 22 points more Republican than South Carolina as a whole.
Politics vary noticeably by neighborhood within Islandton. The northwest side is the most Republican-leaning (R+52) and the southwest side is the least Republican-leaning (R+5), a spread of about 47 points.
Why Islandton 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 Islandton, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in Islandton live in densely developed areas, about 20 points below the South Carolina average of 24%.
Population density and Republican lean
Places with low population density tend to lean Republican; Islandton, SC sits below the national average on this measure.
Why turnout in Islandton looks the way it does
Limited routine healthcare access lines up with lower turnout, and Islandton sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Moselle, SC R+25
- Sniders Crossroads, SC R+44
- Ruffin, SC R+33
- Lodge, SC R+61
- Williams, SC R+34
- Varnville, SC D+4
- Fechtig, SC D+10
- Hampton, SC R+5
- Ehrhardt, SC R+46
- Jennys, SC R+32
Cities with Similar Populations
- Pine Level, FL R+63
- Pine Center, MN R+46
- Twin Oaks, MO D+11
- Dimock, PA R+52
- Bromley, KY R+34
- Fishertown, PA R+65
- Center, ND R+66
- Rock City Falls, NY R+25
- Crawfordville, GA D+7
- Ivanhoe, NC D+8
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.