Grand Bluff, TX Political Map | Democrat & Republican Areas in Grand Bluff

Grand Bluff is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.

 
Grand Bluff, TX block-group political-lean map
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About 65% of adults in Grand Bluff typically vote, near the U.S. average of about 62%. Among adults in Grand Bluff, ~11% vote Democratic, ~54% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.

Grand Bluff, TX block-group voter-turnout map
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Colorblind friendly off

How Grand Bluff compares

Among cities within 25 miles, Grand Bluff leans more Republican than 23 of 40 neighbors.

Grand Bluff runs about 52 points more Republican than Texas as a whole.

Politics vary noticeably by neighborhood within Grand Bluff. The west side is the most Republican-leaning (R+80) and the northwest side is the least Republican-leaning (R+53), a spread of about 28 points.

Why Grand Bluff leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Grand Bluff. The lean here lands roughly where demographic data alone would predict.

Population density and Republican lean

Places with low population density tend to lean Republican; Grand Bluff, TX sits below the national average on this measure.

Why turnout in Grand Bluff looks the way it does

Homeowners vote more often than renters. About 95% of households in Grand Bluff own their home, about 20 points above the Texas average of 75%. Limited routine healthcare access lines up with lower turnout, and Grand Bluff sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.

Cities 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.