79101 leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 43% of adults in 79101 typically vote, below the U.S. average of about 62%. Among adults in 79101, ~19% vote Democratic, ~24% Republican, and ~57% don't vote. The map below shows estimated turnout by block group.
How 79101 compares
Among zip codes within 15 miles, 79101 leans more Republican than 1 of 14 neighbors.
79101 runs about 4 points more Democratic than Texas as a whole.
Politics vary noticeably by block within 79101. The northwest side is the most split-leaning (R+17) and the east side is the least split-leaning (R+3), a spread of about 14 points.
Why 79101 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 79101, not a ranked or complete list of what matters most.
79101 votes Republican even though it is densely developed (more than 99%, far above the Texas average of 35%). Here an older population outweighs the Democratic lean that density usually predicts.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 79101, TX sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 79101 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 79101 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 47%, about 7 points below the Texas average of 54%. Renters vote less often than owners, and about 82% of households in 79101 rent, compared to around 34% in nearby zip codes. High-crime urban areas turn out at lower rates, and 79101 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.