Birmingham, AL Political Map | Democrat & Republican Areas in Birmingham

By the BestNeighborhood data science team. Last updated May 2026.

Birmingham leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.

 

About 71% of adults in the Birmingham area typically vote, above the U.S. average of about 62%. Among adults in the Birmingham area, ~31% vote Democratic, ~40% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.

How Birmingham compares

Among cities within 25 miles, Birmingham leans more Republican than 18 of 81 neighbors.

Birmingham runs about 18 points more Democratic than Alabama as a whole.

Politics vary noticeably by neighborhood within Birmingham. The west side runs the most Democratic (D+47) and the northwest side runs the most Republican (R+64), a spread of about 111 points.

Why Birmingham leans the way it does

This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Birmingham, not a ranked or complete list of what matters most.

Birmingham votes Republican even though it is densely developed (about 57%, far above the Alabama average of 19%). State and regional patterns outweigh the Democratic lean that density usually predicts here.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Birmingham, AL sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Birmingham looks the way it does

Turnout in the Birmingham area sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.

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.