77868 leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 62% of adults in 77868 typically vote, near the U.S. average of about 62%. Among adults in 77868, ~24% vote Democratic, ~38% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How 77868 compares
Among zip codes within 15 miles, 77868 is the least Republican-leaning.
77868 runs about 8 points more Republican than Texas as a whole.
Politics vary noticeably by block within 77868. The west side runs the most Democratic (D+10) and the northeast side runs the most Republican (R+51), a spread of about 60 points.
Why 77868 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 77868, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 75% of households in 77868 are family households, about 8 points above the U.S. average of 67%.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 77868, 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 77868 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 77868 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 48%, about 6 points below the Texas average of 54%. Renters vote less often than owners, and about 37% of households in 77868 rent, above 84% 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.