77007 leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.
About 62% of adults in 77007 typically vote, near the U.S. average of about 62%. Among adults in 77007, ~38% vote Democratic, ~24% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How 77007 compares
Among zip codes within 15 miles, 77007 leans more Democratic than 34 of 87 neighbors.
77007 runs about 35 points more Democratic than Texas as a whole. Texas leans Republican overall, while 77007 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 77007. The northeast side is the most Democratic-leaning (D+33) and the west side is the least Democratic-leaning (D+12), a spread of about 21 points.
Why 77007 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 77007, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 77007 live in densely developed areas, about 63 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 77007 sits in the top quarter (about 80%, in the top fraction of zip codes). 77007 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; 77007, TX sits in the top tenth nationally on this measure.
Why turnout in 77007 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 77007 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in 77007 have completed high school, above 96% 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.