31303 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 72% of adults in 31303 typically vote, above the U.S. average of about 62%. Among adults in 31303, ~16% vote Democratic, ~56% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How 31303 compares
Among zip codes within 15 miles, 31303 is the most Republican-leaning.
31303 runs about 53 points more Republican than Georgia as a whole.
Politics vary noticeably by block within 31303. The southwest side is the most Republican-leaning (R+66) and the northwest side is the least Republican-leaning (R+47), a spread of about 19 points.
Why 31303 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 31303, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 86% of residents in 31303 drive to work alone, about 13 points above the U.S. average of 74%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 31303, GA sits in the bottom quarter nationally 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 31303 looks the way it does
Turnout in 31303 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.