79925 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 50% of adults in 79925 typically vote, below the U.S. average of about 62%. Among adults in 79925, ~30% vote Democratic, ~20% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How 79925 compares
Among zip codes within 15 miles, 79925 leans more Democratic than 17 of 25 neighbors.
79925 runs about 33 points more Democratic than Texas as a whole. Texas leans Republican overall, while 79925 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 79925. The west side is the most Democratic-leaning (D+25) and the south side is the least Democratic-leaning (D+15), a spread of about 10 points.
Why 79925 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 79925, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 79925 live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 38% of adults in 79925 have never been married, above 84% of zip codes. 79925 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; 79925, 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 79925 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 79925 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 27%, about 8 points above the Texas average of 19%. Renters vote less often than owners, and about 44% of households in 79925 rent, about 19 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.