36203 leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 69% of adults in 36203 typically vote, above the U.S. average of about 62%. Among adults in 36203, ~23% vote Democratic, ~46% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 36203 compares
Among zip codes within 15 miles, 36203 leans more Republican than 4 of 9 neighbors.
36203 runs about 4 points more Republican than Alabama as a whole.
Politics vary noticeably by block within 36203. The northeast side runs the most Democratic (D+11) and the southwest side runs the most Republican (R+47), a spread of about 59 points.
Why 36203 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 36203. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 36203, AL sits above the national average on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 36203 looks the way it does
Turnout in 36203 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.
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.