77407 leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 56% of adults in 77407 typically vote, below the U.S. average of about 62%. Among adults in 77407, ~33% vote Democratic, ~23% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How 77407 compares
Among zip codes within 15 miles, 77407 leans more Democratic than 19 of 36 neighbors.
77407 runs about 31 points more Democratic than Texas as a whole. Texas leans Republican overall, while 77407 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 77407. The east side is the most Democratic-leaning (D+31) and the southeast side is the least Democratic-leaning (Even), a spread of about 30 points.
Why 77407 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 77407, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 53% of adults in 77407 hold a bachelor's degree, about 25 points above the U.S. average of 28%. Dense areas vote Democratic, and 77407 sits in the top fifth on density (about 88%, above 86% of zip codes). 77407 runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 77407, TX sits in the top quarter nationally on this measure.
Why turnout in 77407 looks the way it does
Turnout in 77407 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.