Addison, TX Political Map | Democrat & Republican Areas in Addison

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

Addison leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.

 

About 44% of adults in Addison typically vote, below the U.S. average of about 62%. Among adults in Addison, ~27% vote Democratic, ~17% Republican, and ~56% don't vote. The map below shows estimated turnout by block group.

How Addison compares

Among cities within 25 miles, Addison leans more Democratic than 72 of 77 neighbors.

Addison runs about 38 points more Democratic than Texas as a whole. Texas leans Republican overall, while Addison is one of the few Democratic-leaning pockets.

Politics vary noticeably by neighborhood within Addison. The north side is the most Democratic-leaning (D+32) and the west side is the least Democratic-leaning (D+11), a spread of about 21 points.

Why Addison 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 Addison, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in Addison live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Addison sits in the top quarter (about 61%, above 97% of cities). A high never-married share predicts Democratic voting, and about 50% of adults in Addison have never been married, above 98% of cities.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; Addison, TX sits in the top tenth nationally 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 Addison looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Addison is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 84% of households in Addison rent, compared to around 36% in nearby cities. Learn more about the findings and methodology on the political spectrum map.

All Local Stats

Home Services

Sources and methodology

Precinct-level voting records used to fit the model come from Texas Secretary of State, Elections Division, 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.