77301 is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.
About 42% of adults in 77301 typically vote, below the U.S. average of about 62%. Among adults in 77301, ~20% vote Democratic, ~22% Republican, and ~58% don't vote. The map below shows estimated turnout by block group.
How 77301 compares
Among zip codes within 15 miles, 77301 is the least Republican-leaning.
77301 runs about 10 points more Democratic than Texas as a whole.
Politics vary noticeably by block within 77301. The southwest side runs the most Democratic (D+19) and the southeast side runs the most Republican (R+15), a spread of about 35 points.
Why 77301 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 77301. The lean here lands roughly where demographic data alone would predict.
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 77301, TX does.
Why turnout in 77301 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 77301 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 45%, about 9 points below the Texas average of 54%. Renters vote less often than owners, and about 47% of households in 77301 rent, compared to around 25% in nearby zip codes. Low high-school completion lines up with lower turnout, and about 75% of adults in 77301 have completed high school, below 95% 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.