78652 leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.
About 69% of adults in 78652 typically vote, above the U.S. average of about 62%. Among adults in 78652, ~42% vote Democratic, ~27% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 78652 compares
Among zip codes within 15 miles, 78652 leans more Democratic than 11 of 28 neighbors.
78652 runs about 36 points more Democratic than Texas as a whole. Texas leans Republican overall, while 78652 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 78652. The northeast side runs the most Democratic (D+39) and the southwest side runs the most Republican (R+18), a spread of about 57 points.
Why 78652 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 78652, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 58% of adults in 78652 hold a bachelor's degree, about 29 points above the U.S. average of 28%. 78652 runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 78652, TX sits above the national average 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 78652 looks the way it does
Turnout in 78652 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.