The Dominion, San Antonio, TX Political Map | Democrat & Republican Areas in The Dominion

The Dominion leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.

 
The Dominion, San Antonio, TX block-group political-lean map
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About 73% of adults in The Dominion typically vote, above the U.S. average of about 62%. Among adults in The Dominion, ~31% vote Democratic, ~42% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.

The Dominion, San Antonio, TX block-group voter-turnout map
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Lower turnout Higher turnout
Colorblind friendly off

How The Dominion compares

Politically, The Dominion sits close to the rest of Texas.

Why The Dominion leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in The Dominion. 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; The Dominion, San Antonio, TX sits in the bottom quarter nationally on this measure.

Why turnout in The Dominion looks the way it does

Turnout in The Dominion 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.

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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.