78827 leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 82% of adults in 78827 typically vote, above the U.S. average of about 62%. Among adults in 78827, ~43% vote Democratic, ~39% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 78827 compares
Among zip codes within 15 miles, 78827 is the most Democratic-leaning.
78827 runs about 20 points more Democratic than Texas as a whole. Texas leans Republican overall, while 78827 is one of the few Democratic-leaning pockets.
Why 78827 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 78827, not a ranked or complete list of what matters most.
78827 votes against the grain of Texas. Texas leans Republican overall, while 78827 runs about 20 points more Democratic. A high never-married share predicts Democratic voting, and about 34% of adults in 78827 have never been married, above 77% of zip codes.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 78827, TX sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 78827 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 78827 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 36%, about 18 points below the Texas average of 54%. 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.