79855 leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 51% of adults in 79855 typically vote, below the U.S. average of about 62%. Among adults in 79855, ~21% vote Democratic, ~30% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How 79855 compares
79855 runs about 5 points more Republican than Texas as a whole.
Politics vary noticeably by block within 79855. The southeast side is the most split-leaning (R+45) and the southwest side is the least split-leaning (Even), a spread of about 44 points.
Why 79855 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 79855, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in 79855 live in densely developed areas, about 33 points below the Texas average of 35%. Low college attainment predicts Republican voting, and 79855 sits in the bottom quarter (about 15%, below 80% of zip codes).
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 79855, TX sits in the bottom 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 79855 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 79855 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 44%, about 10 points below the Texas average of 54%. Low high-school completion lines up with lower turnout, and about 73% of adults in 79855 have completed high school, below 97% of zip codes. High-crime urban areas turn out at lower rates, and 79855 sits in the top 15% on a violent-crime measure. 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.