79377 is a Republican stronghold. About 9% of voters here vote Democratic and 91% Republican.
About 70% of adults in 79377 typically vote, above the U.S. average of about 62%. Among adults in 79377, ~6% vote Democratic, ~64% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 79377 compares
79377 runs about 69 points more Republican than Texas as a whole.
Why 79377 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 79377, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 81% of households in 79377 are family households, about 15 points above the U.S. average of 67%. Rural areas vote Republican, and 79377 sits in the bottom quarter on density (about 4%, below 88% of zip codes).
Population density and Republican lean
Places with low population density tend to lean Republican; 79377, TX sits in the bottom tenth nationally on this measure.
Why turnout in 79377 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 79377 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.