31315 leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 43% of adults in 31315 typically vote, below the U.S. average of about 62%. Among adults in 31315, ~19% vote Democratic, ~24% Republican, and ~57% don't vote. The map below shows estimated turnout by block group.
How 31315 compares
Among zip codes within 15 miles, 31315 leans more Republican than 5 of 7 neighbors.
31315 runs about 7 points more Republican than Georgia as a whole.
Politics vary noticeably by block within 31315. The southwest side runs the most Democratic (D+3) and the west side runs the most Republican (R+12), a spread of about 14 points.
Why 31315 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 31315, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 84% of households in 31315 are family households, about 17 points above the U.S. average of 67%.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 31315, GA sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 31315 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 31315 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 49%, about 7 points below the Georgia average of 56%. Renters vote less often than owners, and more than 99% of households in 31315 rent, compared to around 37% in nearby zip codes. High food insecurity lines up with lower turnout, and about 22% of adults in 31315 report food insecurity, above 84% of zip codes. 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.