36105 is a Democratic stronghold. About 87% of voters here vote Democratic and 13% Republican.
About 63% of adults in 36105 typically vote, near the U.S. average of about 62%. Among adults in 36105, ~55% vote Democratic, ~8% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 36105 compares
Among zip codes within 15 miles, 36105 is the most Democratic-leaning.
36105 runs about 104 points more Democratic than Alabama as a whole. Alabama leans Republican overall, while 36105 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 36105. The south side is the most Democratic-leaning (D+90) and the southwest side is the least Democratic-leaning (D+4), a spread of about 87 points.
Why 36105 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 36105, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 36105 is about 10%, about 62 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 40% of adults in 36105 have never been married, above 87% of zip codes. 36105 runs against the grain of Alabama, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 36105, 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 36105 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 36105 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 45%, about 9 points below the Alabama average of 54%. 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.