St. Simons Island leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 88% of adults in St. Simons Island typically vote, above the U.S. average of about 62%. Among adults in St. Simons Island, ~27% vote Democratic, ~61% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How St. Simons Island compares
Among cities within 25 miles, St. Simons Island leans more Republican than 15 of 23 neighbors.
St. Simons Island runs about 37 points more Republican than Georgia as a whole.
Politics vary noticeably by neighborhood within St. Simons Island. The northwest side is the most Republican-leaning (R+59) and the east side is the least Republican-leaning (R+35), a spread of about 23 points.
Why St. Simons Island 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 St. Simons Island, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 78% of households in St. Simons Island are family households, about 11 points above the U.S. average of 67%.
Food insecurity and voter turnout
Places with low food insecurity tend to turn out at a higher rate; St. Simons Island, GA sits in the bottom tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in St. Simons Island looks the way it does
Areas with strong routine healthcare access turn out at higher rates. St. Simons Island 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 72%, about 12 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in St. Simons Island have completed high school, above 96% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Harrington, GA R+36
- Sea Island, GA R+37
- St. Simons, GA R+28
- Jewtown, GA R+39
- Country Club Estates, GA D+14
- Dock Junction, GA Even
- Brunswick, GA R+13
- Jekyll Island, GA R+36
- Darien, GA R+25
- Meridian, GA R+17
Cities with Similar Populations
- Solomon, KS R+53
- Barnardsville, NC R+15
- Meherrin, VA R+5
- Village of the Branch, NY R+23
- Vernon, MI R+34
- Livermore, CO R+15
- Barnesboro, PA R+60
- Joshua, FL R+43
- Bock, MN R+57
- Shepardsville, MI R+31
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Georgia Elections Division, 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.