75189 leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 70% of adults in 75189 typically vote, above the U.S. average of about 62%. Among adults in 75189, ~20% vote Democratic, ~51% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 75189 compares
Among zip codes within 15 miles, 75189 leans more Republican than 8 of 13 neighbors.
75189 runs about 31 points more Republican than Texas as a whole.
Politics vary noticeably by block within 75189. The southeast side is the most Republican-leaning (R+65) and the southwest side is the least Republican-leaning (R+35), a spread of about 31 points.
Why 75189 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 75189, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 82% of households in 75189 are family households, about 15 points above the U.S. average of 67%.
Adult arthritis and voter turnout
Places with a low adult-arthritis rate tend to turn out at a higher rate; 75189, TX sits in the bottom tenth nationally on this measure. Arthritis does not drive turnout; it reflects the age and health profile of an area.
Why turnout in 75189 looks the way it does
Homeowners vote more often than renters. About 88% of households in 75189 own their home, about 13 points above the Texas average of 75%. Limited routine healthcare access lines up with lower turnout, and 75189 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.