75243 leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 39% of adults in 75243 typically vote, below the U.S. average of about 62%. Among adults in 75243, ~28% vote Democratic, ~11% Republican, and ~61% don't vote. The map below shows estimated turnout by block group.
How 75243 compares
Among zip codes within 15 miles, 75243 leans more Democratic than 65 of 71 neighbors.
75243 runs about 58 points more Democratic than Texas as a whole. Texas leans Republican overall, while 75243 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 75243. The west side is the most Democratic-leaning (D+62) and the south side is the least Democratic-leaning (D+8), a spread of about 54 points.
Why 75243 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 75243, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 75243 live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 44% of adults in 75243 have never been married, above 91% of zip codes. 75243 runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 75243, 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 75243 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 75243 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 50%, about 10 points below the U.S. average of 60%. Renters vote less often than owners, and about 72% of households in 75243 rent, compared to around 52% in nearby 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.