76645 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 57% of adults in 76645 typically vote, near the U.S. average of about 62%. Among adults in 76645, ~18% vote Democratic, ~39% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How 76645 compares
Among zip codes within 15 miles, 76645 is the least Republican-leaning.
76645 runs about 24 points more Republican than Texas as a whole.
Politics vary noticeably by block within 76645. The northwest side is the most split-leaning (R+73) and the west side is the least split-leaning (Even), a spread of about 71 points.
Why 76645 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 76645, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 16% of adults in 76645 hold a bachelor's degree, about 10 points below the Texas average of 26%.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 76645, TX sits in the bottom quarter 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 76645 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 76645 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 21%, about 10 points above the U.S. average of 10%. Renters vote less often than owners, and about 35% of households in 76645 rent, compared to around 15% in nearby zip codes. Low high-school completion lines up with lower turnout, and about 84% of adults in 76645 have completed high school, below 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.