30220 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 74% of adults in 30220 typically vote, above the U.S. average of about 62%. Among adults in 30220, ~24% vote Democratic, ~50% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 30220 compares
Among zip codes within 15 miles, 30220 leans more Republican than 3 of 10 neighbors.
30220 runs about 33 points more Republican than Georgia as a whole.
Politics vary noticeably by block within 30220. The east side is the most Republican-leaning (R+55) and the southeast side is the least Republican-leaning (R+7), a spread of about 48 points.
Why 30220 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 30220, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 85% of residents in 30220 drive to work alone, about 11 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 74% of households in 30220 are family households, above 78% of zip codes.
Multifamily housing and voter turnout
Places with a low multifamily-housing share tend to turn out in mixed patterns; 30220, GA sits in the bottom quarter nationally on this measure. Apartment housing does not change how people vote; it reflects urban density and renting.
Why turnout in 30220 looks the way it does
Turnout in 30220 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.