75105 leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 45% of adults in 75105 typically vote, below the U.S. average of about 62%. Among adults in 75105, ~13% vote Democratic, ~32% Republican, and ~55% don't vote. The map below shows estimated turnout by block group.
How 75105 compares
Among zip codes within 15 miles, 75105 leans more Republican than 3 of 8 neighbors.
75105 runs about 27 points more Republican than Texas as a whole.
Why 75105 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 75105, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 83% of households in 75105 are family households, about 16 points above the U.S. average of 67%. Rural areas vote Republican, and 75105 sits in the bottom quarter on density (about 4%, below 87% of zip codes).
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 75105, 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 75105 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 75105 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 35% of households in 75105 rent, above 81% 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.