Donaldson Terrace leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 40% of adults in Donaldson Terrace typically vote, below the U.S. average of about 62%. Among adults in Donaldson Terrace, ~26% vote Democratic, ~14% Republican, and ~60% don't vote. The map below shows estimated turnout by block group.
How Donaldson Terrace compares
Among neighborhoods within 5 miles, Donaldson Terrace leans more Democratic than 17 of 34 neighbors.
Donaldson Terrace runs about 45 points more Democratic than Texas as a whole. Texas leans Republican overall, while Donaldson Terrace is one of the few Democratic-leaning pockets.
Why Donaldson Terrace 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 Donaldson Terrace, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Donaldson Terrace live in densely developed areas, about 64 points above the U.S. average of 36%. Donaldson Terrace runs against the grain of Texas, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Donaldson Terrace, 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 Donaldson Terrace looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Donaldson Terrace 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 42%, about 12 points below the Texas average of 54%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- University Park-San Antonio, San Antonio, TX D+30
- Laddie Place and North Wilson, San Antonio, TX D+30
- Jefferson-Woodlawn Lake, San Antonio, TX D+36
- Jefferson, San Antonio, TX D+36
- Third World, San Antonio, TX D+29
- Ingram Hills, San Antonio, TX D+24
- Memorial Heights, San Antonio, TX D+35
- Loma Park, San Antonio, TX D+27
- Los Angeles Heights-Keystone, San Antonio, TX D+36
- Woodlawn Lake, San Antonio, TX D+37
Neighborhoods with Similar Populations
- Centennial, Burlington, VT D+68
- Broadacres Homes, Athens, GA D+56
- Reichlieu, Mobile, AL D+21
- Cloutier Court, Wilmington, DE D+26
- Garden Home-Raleigh Hills, Portland, OR D+55
- Wedge, Woodinville, WA D+36
- Boltons Landing, Charleston, SC D+7
- Coytesville, Fort Lee, NJ D+17
- West Laurel, Laurel, MD D+41
- Reedy Creek, Richmond, VA D+70
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.