75204 leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 49% of adults in 75204 typically vote, below the U.S. average of about 62%. Among adults in 75204, ~30% vote Democratic, ~19% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How 75204 compares
Among zip codes within 15 miles, 75204 leans more Democratic than 38 of 76 neighbors.
75204 runs about 39 points more Democratic than Texas as a whole. Texas leans Republican overall, while 75204 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 75204. The east side is the most Democratic-leaning (D+47) and the west side is the least Democratic-leaning (D+9), a spread of about 38 points.
Why 75204 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 75204, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 75204 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 75204 sits in the top quarter (about 70%, above 97% of zip codes). A high never-married share predicts Democratic voting, and about 63% of adults in 75204 have never been married, above 98% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 75204, TX sits in the top tenth nationally on this measure.
Why turnout in 75204 looks the way it does
Renters vote less often than owners. About 82% of households in 75204 rent, about 57 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.