75090 leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About 49% of adults in 75090 typically vote, below the U.S. average of about 62%. Among adults in 75090, ~20% vote Democratic, ~29% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How 75090 compares
Among zip codes within 15 miles, 75090 is the least Republican-leaning.
75090 runs about 6 points more Republican than Texas as a whole.
Politics vary noticeably by block within 75090. The southeast side is the most split-leaning (R+58) and the west side is the least split-leaning (Even), a spread of about 57 points.
Why 75090 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 75090, not a ranked or complete list of what matters most.
75090 votes Republican even though it is densely developed (about 64%, well 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 75090 sits in the bottom quarter (about 14%, below 85% of zip codes).
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 75090, TX sits in the bottom tenth 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 75090 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 75090 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 49%, about 11 points below the U.S. average of 60%. Renters vote less often than owners, and about 41% of households in 75090 rent, compared to around 22% in nearby zip codes. Low high-school completion lines up with lower turnout, and about 84% of adults in 75090 have completed high school, below 83% 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.