Oak Hills, San Antonio, TX Political Map | Democrat & Republican Areas in Oak Hills

By the BestNeighborhood data science team. Last updated May 2026.

Oak Hills leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.

 

About 48% of adults in Oak Hills typically vote, below the U.S. average of about 62%. Among adults in Oak Hills, ~31% vote Democratic, ~17% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.

How Oak Hills compares

Among neighborhoods within 5 miles, Oak Hills leans more Democratic than 12 of 25 neighbors.

Oak Hills runs about 41 points more Democratic than Texas as a whole. Texas leans Republican overall, while Oak Hills is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within Oak Hills. The northwest side is the most Democratic-leaning (D+33) and the southeast side is the least Democratic-leaning (D+18), a spread of about 14 points.

Why Oak Hills leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Oak Hills, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in Oak Hills live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 61% of adults in Oak Hills have never been married, above 94% of neighborhoods. Oak Hills runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.

Developed land and Democratic lean

Places with a heavily developed built environment tend to lean Democratic; Oak Hills, San Antonio, TX sits in the top quarter nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Oak Hills looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Oak Hills is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 68% of households in Oak Hills rent, compared to around 51% in nearby neighborhoods. Learn more about the findings and methodology on the political spectrum map.

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.