Glynn County leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 73% of adults in Glynn County typically vote, above the U.S. average of about 62%. Among adults in Glynn County, ~31% vote Democratic, ~42% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How Glynn County compares
Among counties within 50 miles, Glynn County leans more Republican than 1 of 9 neighbors.
Glynn County runs about 11 points more Republican than Georgia as a whole.
Politics vary noticeably by city within Glynn County. The south side runs the most Democratic (D+39) and the southwest side runs the most Republican (R+41), a spread of about 80 points.
Why Glynn 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 Glynn County, not a ranked or complete list of what matters most.
Glynn County votes Republican even though it is densely developed (about 50%, well above the Georgia average of 26%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Glynn County, GA sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Glynn County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Glynn County 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 59%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- McIntosh County, GA R+24
- Camden County, GA R+35
- Brantley County, GA R+80
- Wayne County, GA R+52
- Nassau County, FL R+47
- Long County, GA R+26
- Charlton County, GA R+46
- Liberty County, GA D+16
- Pierce County, GA R+71
- Bryan County, GA R+35
Counties with Similar Populations
- Cascade County, MT R+25
- Wood County, WV R+41
- Orangeburg County, SC D+28
- Buchanan County, MO R+23
- Orange County, TX R+59
- Chemung County, NY R+14
- Jefferson County, WI R+21
- Crawford County, PA R+39
- Rockingham County, VA R+40
- Howard County, IN R+30
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.