78843 leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 46% of adults in 78843 typically vote, below the U.S. average of about 62%. Among adults in 78843, ~15% vote Democratic, ~31% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How 78843 compares
78843 sits in a sparsely populated area with few comparable zip codes nearby.
78843 runs about 21 points more Republican than Texas as a whole.
Why 78843 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 78843. The lean here lands roughly where demographic data alone would predict.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 78843, TX sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 78843 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 78843 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 more than 99% of households in 78843 rent, compared to around 18% in nearby 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.