76578 leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 78% of adults in 76578 typically vote, above the U.S. average of about 62%. Among adults in 76578, ~20% vote Democratic, ~58% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How 76578 compares
Among zip codes within 15 miles, 76578 leans more Republican than 2 of 3 neighbors.
76578 runs about 34 points more Republican than Texas as a whole.
Politics vary noticeably by block within 76578. The southeast side is the most Republican-leaning (R+58) and the northwest side is the least Republican-leaning (R+33), a spread of about 25 points.
Why 76578 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 76578, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 86% of households in 76578 are family households, about 19 points above the U.S. average of 67%. Car-dependent areas vote Republican, and about 83% of residents in 76578 drive to work alone, above 81% of zip codes.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 76578, TX sits in the top quarter nationally on this measure.
Why turnout in 76578 looks the way it does
Homeowners vote more often than renters. About 88% of households in 76578 own their home, about 13 points above the Texas average of 75%. Limited routine healthcare access lines up with lower turnout, and 76578 sits in the bottom quarter on routine-care measures. 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.