78252 leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 46% of adults in 78252 typically vote, below the U.S. average of about 62%. Among adults in 78252, ~24% vote Democratic, ~22% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How 78252 compares
Among zip codes within 15 miles, 78252 leans more Democratic than 11 of 40 neighbors.
78252 runs about 20 points more Democratic than Texas as a whole. Texas leans Republican overall, while 78252 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 78252. The east side runs the most Democratic (D+13) and the south side runs the most Republican (R+11), a spread of about 25 points.
Why 78252 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 78252, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 34% of adults in 78252 have never been married, about 5 points above the U.S. average of 29%. 78252 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; 78252, TX sits above the national average on this measure.
Why turnout in 78252 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 78252 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 50%, about 10 points below the U.S. average of 60%. Low high-school completion lines up with lower turnout, and about 83% of adults in 78252 have completed high school, below 85% of zip codes. 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.