30273 is a Democratic stronghold. About 84% of voters here vote Democratic and 16% Republican.
About 78% of adults in 30273 typically vote, above the U.S. average of about 62%. Among adults in 30273, ~65% vote Democratic, ~13% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How 30273 compares
Among zip codes within 15 miles, 30273 leans more Democratic than 16 of 41 neighbors.
30273 runs about 71 points more Democratic than Georgia as a whole. Georgia is roughly evenly split, and 30273 sits clearly on the Democratic side.
Politics vary noticeably by block within 30273. The south side is the most Democratic-leaning (D+76) and the west side is the least Democratic-leaning (D+55), a spread of about 22 points.
Why 30273 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 30273, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 30273 is about 12%, about 61 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 37% of adults in 30273 have never been married, above 83% of zip codes. 30273 runs against the grain of Georgia, a Democratic-leaning outlier in a roughly evenly split state.
Developed land and Democratic lean
Places with a heavily developed built environment tend to lean Democratic; 30273, GA sits in the top quarter nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 30273 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 30273 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.