75134 is a Democratic stronghold. About 84% of voters here vote Democratic and 16% Republican.
About 56% of adults in 75134 typically vote, below the U.S. average of about 62%. Among adults in 75134, ~47% vote Democratic, ~9% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How 75134 compares
Among zip codes within 15 miles, 75134 leans more Democratic than 40 of 45 neighbors.
75134 runs about 83 points more Democratic than Texas as a whole. Texas leans Republican overall, while 75134 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 75134. The northeast side is the most Democratic-leaning (D+79) and the southeast side is the least Democratic-leaning (D+59), a spread of about 21 points.
Why 75134 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 75134, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 75134 is about 6%, about 66 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 40% of adults in 75134 have never been married, above 88% of zip codes. 75134 runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 75134, TX sits in the top quarter nationally on this measure.
Why turnout in 75134 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 75134 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 49%, about 11 points below the U.S. average of 60%. 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.