Buchanan Dam, TX Political Map | Democrat & Republican Areas in Buchanan Dam

Buchanan Dam is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.

 
Buchanan Dam, TX block-group political-lean map
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About 77% of adults in Buchanan Dam typically vote, above the U.S. average of about 62%. Among adults in Buchanan Dam, ~13% vote Democratic, ~63% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.

Buchanan Dam, TX block-group voter-turnout map
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How Buchanan Dam compares

Among cities within 25 miles, Buchanan Dam leans more Republican than 15 of 24 neighbors.

Buchanan Dam runs about 52 points more Republican than Texas as a whole.

Why Buchanan Dam leans the way it does

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

Cancer-screening access and voter turnout

Places with high colon-cancer-screening access tend to turn out at a higher rate; Buchanan Dam, TX sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in Buchanan Dam looks the way it does

Turnout in Buchanan Dam 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.

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.