77086 leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 35% of adults in 77086 typically vote, below the U.S. average of about 62%. Among adults in 77086, ~22% vote Democratic, ~13% Republican, and ~65% don't vote. The map below shows estimated turnout by block group.
How 77086 compares
Among zip codes within 15 miles, 77086 leans more Democratic than 40 of 66 neighbors.
77086 runs about 37 points more Democratic than Texas as a whole. Texas leans Republican overall, while 77086 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 77086. The north side is the most Democratic-leaning (D+24) and the south side is the least Democratic-leaning (D+7), a spread of about 17 points.
Why 77086 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 77086, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in 77086 live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 40% of adults in 77086 have never been married, above 88% of zip codes. 77086 runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 77086, TX sits in the bottom tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 77086 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 77086 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 41%, about 13 points below the Texas average of 54%. Renters vote less often than owners, and about 43% of households in 77086 rent, about 18 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and about 66% of adults in 77086 have completed high school, in the bottom fraction of zip codes. 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.