31721 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 83% of adults in 31721 typically vote, above the U.S. average of about 62%. Among adults in 31721, ~50% vote Democratic, ~33% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How 31721 compares
Among zip codes within 15 miles, 31721 leans more Democratic than 3 of 6 neighbors.
31721 runs about 22 points more Democratic than Georgia as a whole. Georgia is roughly evenly split, and 31721 sits clearly on the Democratic side.
Politics vary noticeably by block within 31721. The east side runs the most Democratic (D+58) and the southwest side runs the most Republican (R+19), a spread of about 77 points.
Why 31721 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 31721, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 38% of adults in 31721 hold a bachelor's degree, about 9 points above the U.S. average of 28%. 31721 runs against the grain of Georgia, a Democratic-leaning outlier in a roughly evenly split state.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 31721, GA sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 31721 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 31721 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 64%, above 58% 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.