30623 leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 82% of adults in 30623 typically vote, above the U.S. average of about 62%. Among adults in 30623, ~23% vote Democratic, ~59% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 30623 compares
Among zip codes within 15 miles, 30623 leans more Republican than 5 of 9 neighbors.
30623 runs about 41 points more Republican than Georgia as a whole.
Why 30623 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 30623, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 83% of residents in 30623 drive to work alone, about 10 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 79% of households in 30623 are family households, above 89% of zip codes.
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as 30623, GA does.
Why turnout in 30623 looks the way it does
Homeowners vote more often than renters. About 97% of households in 30623 own their home, about 24 points above the Georgia average of 73%. High high-school completion lines up with higher turnout, and about 97% of adults in 30623 have completed high school, above 91% 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.