76903 leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 50% of adults in 76903 typically vote, below the U.S. average of about 62%. Among adults in 76903, ~20% vote Democratic, ~31% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How 76903 compares
Among zip codes within 15 miles, 76903 leans more Republican than 2 of 6 neighbors.
76903 runs about 9 points more Republican than Texas as a whole.
Politics vary noticeably by block within 76903. The west side runs the most Democratic (D+9) and the northwest side runs the most Republican (R+37), a spread of about 46 points.
Why 76903 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 76903, not a ranked or complete list of what matters most.
76903 votes Republican even though it is densely developed (about 83%, far above the Texas average of 35%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Low college attainment predicts Republican voting, and 76903 sits in the bottom quarter (about 15%, below 82% of zip codes).
High-school completion, developed land, and voter turnout
Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as 76903, TX does.
Why turnout in 76903 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 76903 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 48%, about 6 points below the Texas average of 54%. Renters vote less often than owners, and about 41% of households in 76903 rent, about 16 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and about 77% of adults in 76903 have completed high school, below 94% 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.