75234 leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.
About 50% of adults in 75234 typically vote, below the U.S. average of about 62%. Among adults in 75234, ~28% vote Democratic, ~22% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How 75234 compares
Among zip codes within 15 miles, 75234 leans more Democratic than 35 of 75 neighbors.
75234 runs about 27 points more Democratic than Texas as a whole. Texas leans Republican overall, while 75234 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 75234. The northwest side is the most Democratic-leaning (D+26) and the east side is the least Democratic-leaning (Even), a spread of about 25 points.
Why 75234 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 75234, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 97% of residents in 75234 live in densely developed areas, about 60 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 75234 sits in the top quarter (about 41%, above 81% of zip codes). 75234 runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 75234, TX 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 75234 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 75234 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 22%, about 12 points above the U.S. average of 10%. Renters vote less often than owners, and about 43% of households in 75234 rent, about 18 points above the U.S. average of 25%. 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 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.