30104 is a Republican stronghold. About 14% of voters here vote Democratic and 86% Republican.
About 72% of adults in 30104 typically vote, above the U.S. average of about 62%. Among adults in 30104, ~10% vote Democratic, ~62% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How 30104 compares
Among zip codes within 15 miles, 30104 leans more Republican than 6 of 7 neighbors.
30104 runs about 69 points more Republican than Georgia as a whole.
Why 30104 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 30104, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 88% of residents in 30104 drive to work alone, about 14 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and 30104 sits in the bottom quarter (about 14%, below 84% of zip codes). A high family-household share predicts Republican voting, and about 82% of households in 30104 are family households, above 94% of zip codes.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 30104, 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 30104 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 30104 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.