77880 leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 61% of adults in 77880 typically vote, near the U.S. average of about 62%. Among adults in 77880, ~20% vote Democratic, ~41% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 77880 compares
77880 sits in a sparsely populated area with few comparable zip codes nearby.
77880 runs about 21 points more Republican than Texas as a whole.
Politics vary noticeably by block within 77880. The southwest side is the most Republican-leaning (R+53) and the northwest side is the least Republican-leaning (R+29), a spread of about 24 points.
Why 77880 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 77880, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 77% of households in 77880 are family households, about 10 points above the U.S. average of 67%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 77880, 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 77880 looks the way it does
Turnout in 77880 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.