30631 leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican.
About 72% of adults in 30631 typically vote, above the U.S. average of about 62%. Among adults in 30631, ~40% vote Democratic, ~32% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How 30631 compares
Among zip codes within 15 miles, 30631 leans more Democratic than 6 of 7 neighbors.
30631 runs about 13 points more Democratic than Georgia as a whole. Georgia is roughly evenly split, and 30631 sits clearly on the Democratic side.
Politics vary noticeably by block within 30631. The northwest side runs the most Democratic (D+36) and the north side runs the most Republican (R+8), a spread of about 44 points.
Why 30631 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 30631, not a ranked or complete list of what matters most.
Rural, majority-Black areas of the Southern Black Belt vote Democratic, against the usual rural pattern. About 45% of residents in 30631 are Black or African American, about 21 points above the Georgia average of 25%. A high never-married share predicts Democratic voting, and about 41% of adults in 30631 have never been married, above 88% of zip codes. 30631 runs against the grain of Georgia, a Democratic-leaning outlier in a roughly evenly split state.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 30631, GA sits in the bottom tenth 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 30631 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 30631 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.