78722 is a Democratic stronghold. About 84% of voters here vote Democratic and 16% Republican.
About 69% of adults in 78722 typically vote, above the U.S. average of about 62%. Among adults in 78722, ~58% vote Democratic, ~11% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 78722 compares
Among zip codes within 15 miles, 78722 is the most Democratic-leaning.
78722 runs about 82 points more Democratic than Texas as a whole. Texas leans Republican overall, while 78722 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 78722. The northeast side is the most Democratic-leaning (D+72) and the west side is the least Democratic-leaning (D+61), a spread of about 11 points.
Why 78722 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 78722, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 78722 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 78722 sits in the top quarter (about 72%, above 98% of zip codes). 78722 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; 78722, TX sits in the top tenth nationally 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 78722 looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in 78722 have completed high school, about 12 points above the Texas average of 86%. 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.