Highland Hills leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 38% of adults in Highland Hills typically vote, below the U.S. average of about 62%. Among adults in Highland Hills, ~24% vote Democratic, ~14% Republican, and ~62% don't vote. The map below shows estimated turnout by block group.
How Highland Hills compares
Among neighborhoods within 5 miles, Highland Hills leans more Democratic than 4 of 16 neighbors.
Highland Hills runs about 39 points more Democratic than Texas as a whole. Texas leans Republican overall, while Highland Hills is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within Highland Hills. The west side is the most Democratic-leaning (D+31) and the southeast side is the least Democratic-leaning (D+19), a spread of about 12 points.
Why Highland 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 Highland Hills, not a ranked or complete list of what matters most.
Highland Hills votes against the grain of Texas. Texas leans Republican overall, while Highland Hills runs about 39 points more Democratic.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Highland Hills, San Antonio, TX sits in the bottom tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Highland Hills looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Highland Hills is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 43%, about 11 points below the Texas average of 54%. Low high-school completion lines up with lower turnout, and about 79% of adults in Highland Hills have completed high school, below 87% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Hot Wells, San Antonio, TX D+29
- Pecan Valley, San Antonio, TX D+26
- Sunny Slope, San Antonio, TX D+35
- Woodbridge at Monte Viejo, San Antonio, TX D+9
- Highland Park, San Antonio, TX D+34
- Riverside South, San Antonio, TX D+34
- Mission San Jose, San Antonio, TX D+29
- Denver Heights, San Antonio, TX D+41
- Arena District, San Antonio, TX D+44
- Jefferson Heights, San Antonio, TX D+49
Neighborhoods with Similar Populations
- Paradise Hills, San Diego, CA D+21
- Cal Young, Eugene, OR D+41
- Parkside, San Francisco, CA D+48
- Indian River, Chesapeake, VA D+34
- Powellhurst-Gilbert, Portland, OR D+27
- City Center East, Philadelphia, PA D+71
- Sommerset West-Elmonica North, Bethany, OR D+39
- North End, Tacoma, WA D+58
- Bridgeport, Chicago, IL D+27
- South Philadelphia, Philadelphia, PA D+22
All Local Stats
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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.