30311 is a Democratic stronghold. About 93% of voters here vote Democratic and 7% Republican.
About 63% of adults in 30311 typically vote, near the U.S. average of about 62%. Among adults in 30311, ~58% vote Democratic, ~5% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 30311 compares
Among zip codes within 15 miles, 30311 is the most Democratic-leaning.
30311 runs about 89 points more Democratic than Georgia as a whole. Georgia is roughly evenly split, and 30311 sits clearly on the Democratic side.
Why 30311 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 30311, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 82% of residents in 30311 live in densely developed areas, about 46 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 52% of adults in 30311 have never been married, above 96% of zip codes. 30311 runs against the grain of Georgia, a Democratic-leaning outlier in a roughly evenly split state.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; 30311, GA sits in the top quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 30311 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 30311 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 47%, about 9 points below the Georgia average of 56%. 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.