Dallas County leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 68% of adults in Dallas County typically vote, above the U.S. average of about 62%. Among adults in Dallas County, ~47% vote Democratic, ~21% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Dallas County compares
Among counties within 50 miles, Dallas County leans more Democratic than 9 of 11 neighbors.
Dallas County runs about 68 points more Democratic than Alabama as a whole. Alabama leans Republican overall, while Dallas County is one of the few Democratic-leaning pockets.
Politics vary noticeably by city within Dallas County. The east side runs the most Democratic (D+67) and the northwest side runs the most Republican (R+17), a spread of about 84 points.
Why Dallas County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Dallas County, not a ranked or complete list of what matters most.
Dallas County votes against the grain of Alabama. Alabama leans Republican overall, while Dallas County runs about 68 points more Democratic. A high never-married share predicts Democratic voting, and about 34% of adults in Dallas County have never been married, above 82% of counties.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Dallas County, AL sits in the bottom tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Dallas County looks the way it does
Turnout in Dallas County sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Perry County, AL D+41
- Lowndes County, AL D+35
- Autauga County, AL R+41
- Wilcox County, AL D+22
- Chilton County, AL R+69
- Hale County, AL D+13
- Bibb County, AL R+57
- Marengo County, AL D+3
- Montgomery County, AL D+38
- Elmore County, AL R+47
Counties with Similar Populations
- Woodford County, IL R+40
- Finney County, KS R+25
- Guernsey County, OH R+50
- Susquehanna County, PA R+45
- Graham County, AZ R+39
- Warren County, PA R+41
- Colleton County, SC R+17
- Isle of Wight County, VA R+17
- Brown County, SD R+35
- Defiance County, OH R+43
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.