77356 is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 90% of adults in 77356 typically vote, above the U.S. average of about 62%. Among adults in 77356, ~22% vote Democratic, ~68% Republican, and ~10% don't vote. The map below shows estimated turnout by block group.
How 77356 compares
Among zip codes within 15 miles, 77356 leans more Republican than 6 of 8 neighbors.
77356 runs about 37 points more Republican than Texas as a whole.
Politics vary noticeably by block within 77356. The northwest side is the most Republican-leaning (R+65) and the southeast side is the least Republican-leaning (R+43), a spread of about 22 points.
Why 77356 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 77356. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 77356, TX sits above the national average on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 77356 looks the way it does
Turnout in 77356 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.