31830 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 65% of adults in 31830 typically vote, near the U.S. average of about 62%. Among adults in 31830, ~21% vote Democratic, ~44% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How 31830 compares
Among zip codes within 15 miles, 31830 leans more Republican than 5 of 8 neighbors.
31830 runs about 33 points more Republican than Georgia as a whole.
Politics vary noticeably by block within 31830. The south side is the most Republican-leaning (R+60) and the northeast side is the least Republican-leaning (R+6), a spread of about 54 points.
Why 31830 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 31830, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 15% of adults in 31830 hold a bachelor's degree, about 9 points below the Georgia average of 24%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 31830, GA sits below the national average on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 31830 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 31830 sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.