35233 leans heavily Democratic by roughly 42 points: about 71% of voters vote Democratic and 29% Republican.
About 30% of adults in 35233 typically vote, below the U.S. average of about 62%. Among adults in 35233, ~21% vote Democratic, ~9% Republican, and ~70% don't vote. The map below shows estimated turnout by block group.
How 35233 compares
Among zip codes within 15 miles, 35233 leans more Democratic than 21 of 44 neighbors.
35233 runs about 72 points more Democratic than Alabama as a whole. Alabama leans Republican overall, while 35233 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 35233. The southwest side is the most Democratic-leaning (D+47) and the northeast side is the least Democratic-leaning (D+31), a spread of about 16 points.
Why 35233 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 35233, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 35233 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 35233 sits in the top quarter (about 80%, in the top fraction of zip codes). 35233 runs against the grain of Alabama, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 35233, AL sits in the top quarter nationally on this measure.
Why turnout in 35233 looks the way it does
Renters vote less often than owners. About 93% of households in 35233 rent, about 68 points above the U.S. average of 25%. High-crime urban areas turn out at lower rates, and 35233 sits in the top 15% on a violent-crime measure. 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 Alabama Secretary of State, Elections, 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.