77486 leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 75% of adults in 77486 typically vote, above the U.S. average of about 62%. Among adults in 77486, ~19% vote Democratic, ~55% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 77486 compares
Among zip codes within 15 miles, 77486 leans more Republican than 3 of 8 neighbors.
77486 runs about 34 points more Republican than Texas as a whole.
Politics vary noticeably by block within 77486. The southeast side is the most Republican-leaning (R+61) and the west side is the least Republican-leaning (R+28), a spread of about 34 points.
Why 77486 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 77486. The lean here lands roughly where demographic data alone would predict.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 77486, TX sits above the national average on this measure.
Why turnout in 77486 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 77486 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.