77623 is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 64% of adults in 77623 typically vote, near the U.S. average of about 62%. Among adults in 77623, ~13% vote Democratic, ~51% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How 77623 compares
77623 runs about 44 points more Republican than Texas as a whole.
Why 77623 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 77623. The lean here lands roughly where demographic data alone would predict.
Renting and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 77623, TX sits in the bottom tenth nationally on this measure.
Why turnout in 77623 looks the way it does
Homeowners vote more often than renters. About 92% of households in 77623 own their home, about 17 points above the Texas average of 75%. Limited routine healthcare access lines up with lower turnout, and 77623 sits in the bottom quarter on routine-care measures. 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.