30504 leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 55% of adults in 30504 typically vote, below the U.S. average of about 62%. Among adults in 30504, ~25% vote Democratic, ~30% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.
How 30504 compares
Among zip codes within 15 miles, 30504 leans more Republican than 3 of 14 neighbors.
30504 runs about 8 points more Republican than Georgia as a whole.
Politics vary noticeably by block within 30504. The north side runs the most Democratic (D+5) and the northwest side runs the most Republican (R+31), a spread of about 36 points.
Why 30504 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 30504, not a ranked or complete list of what matters most.
30504 votes Republican even though it is densely developed (about 67%, far above the Georgia average of 26%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 74% of households in 30504 are family households, above 77% of zip codes.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 30504, GA sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 30504 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 30504 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 27%, about 13 points above the Georgia average of 14%. Renters vote less often than owners, and about 46% of households in 30504 rent, compared to around 27% in nearby zip codes. High food insecurity lines up with lower turnout, and about 27% of adults in 30504 report food insecurity, 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.