77063 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 39% of adults in 77063 typically vote, below the U.S. average of about 62%. Among adults in 77063, ~23% vote Democratic, ~16% Republican, and ~61% don't vote. The map below shows estimated turnout by block group.
How 77063 compares
Among zip codes within 15 miles, 77063 leans more Democratic than 33 of 78 neighbors.
77063 runs about 35 points more Democratic than Texas as a whole. Texas leans Republican overall, while 77063 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 77063. The south side is the most Democratic-leaning (D+31) and the east side is the least Democratic-leaning (D+7), a spread of about 24 points.
Why 77063 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 77063, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in 77063 live in densely developed areas, about 63 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 77063 sits in the top quarter (about 47%, above 87% of zip codes). 77063 runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 77063, TX sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 77063 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 77063 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 74% of households in 77063 rent, about 49 points above the U.S. average of 25%. 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.