30605 leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 61% of adults in 30605 typically vote, near the U.S. average of about 62%. Among adults in 30605, ~42% vote Democratic, ~19% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 30605 compares
Among zip codes within 15 miles, 30605 leans more Democratic than 12 of 15 neighbors.
30605 runs about 38 points more Democratic than Georgia as a whole. Georgia is roughly evenly split, and 30605 sits clearly on the Democratic side.
Politics vary noticeably by block within 30605. The west side is the most Democratic-leaning (D+46) and the east side is the least Democratic-leaning (D+23), a spread of about 23 points.
Why 30605 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 30605, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 49% of adults in 30605 hold a bachelor's degree, about 21 points above the U.S. average of 28%. Density combined with diversity predicts Democratic voting, and non-Hispanic white share in 30605 is about 59%, below 77% of zip codes. A high never-married share predicts Democratic voting, and about 57% of adults in 30605 have never been married, above 98% of zip codes.
Never-married share, developed land, and voter turnout
Places that combine a never-married-heavy adult population and a heavily developed built environment tend to turn out at a lower rate, as 30605, GA does.
Why turnout in 30605 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 30605 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 66% of households in 30605 rent, compared to around 46% in nearby 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.