77047 is a Democratic stronghold. About 78% of voters here vote Democratic and 22% Republican.
About 54% of adults in 77047 typically vote, below the U.S. average of about 62%. Among adults in 77047, ~42% vote Democratic, ~12% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How 77047 compares
Among zip codes within 15 miles, 77047 leans more Democratic than 65 of 72 neighbors.
77047 runs about 71 points more Democratic than Texas as a whole. Texas leans Republican overall, while 77047 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 77047. The northeast side is the most Democratic-leaning (D+82) and the southwest side is the least Democratic-leaning (D+10), a spread of about 72 points.
Why 77047 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 77047, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 77047 is about 5%, about 68 points below the U.S. average of 72%. High college attainment predicts Democratic voting, and 77047 sits in the top quarter (about 36%, above 77% of zip codes). 77047 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; 77047, 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 77047 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 77047 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.