77629 is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 69% of adults in 77629 typically vote, above the U.S. average of about 62%. Among adults in 77629, ~12% vote Democratic, ~57% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 77629 compares
Among zip codes within 15 miles, 77629 leans more Republican than 4 of 7 neighbors.
77629 runs about 50 points more Republican than Texas as a whole.
Politics vary noticeably by block within 77629. The west side is the most Republican-leaning (R+69) and the east side is the least Republican-leaning (R+20), a spread of about 49 points.
Why 77629 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 77629, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in 77629 drive to work alone, about 13 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 81% of households in 77629 are family households, above 93% of zip codes.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 77629, TX sits in the bottom quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 77629 looks the way it does
Homeowners vote more often than renters. About 91% of households in 77629 own their home, about 16 points above the Texas average of 75%. 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.