79705 leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 70% of adults in 79705 typically vote, above the U.S. average of about 62%. Among adults in 79705, ~18% vote Democratic, ~52% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 79705 compares
Among zip codes within 15 miles, 79705 leans more Republican than 2 of 4 neighbors.
79705 runs about 34 points more Republican than Texas as a whole.
Politics vary noticeably by block within 79705. The southeast side runs the most Democratic (D+7) and the northwest side runs the most Republican (R+65), a spread of about 72 points.
Why 79705 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 79705, not a ranked or complete list of what matters most.
79705 votes Republican even though it is densely developed (about 78%, far above the Texas average of 35%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Non-English at home and voter turnout
Places with a low non-English-at-home share tend to turn out at a higher rate; 79705, TX sits in the bottom quarter nationally on this measure.
Why turnout in 79705 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 79705 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.