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

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

Northern Hills is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.

 

About 59% of adults in Northern Hills typically vote, near the U.S. average of about 62%. Among adults in Northern Hills, ~31% vote Democratic, ~28% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.

How Northern Hills compares

Among neighborhoods within 5 miles, Northern Hills leans more Democratic than 4 of 14 neighbors.

Northern Hills runs about 17 points more Democratic than Texas as a whole. Texas leans Republican overall, while Northern Hills is one of the few Democratic-leaning pockets.

Why Northern 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 Northern Hills, not a ranked or complete list of what matters most.

Northern Hills votes against the grain of Texas. Texas leans Republican overall, while Northern Hills runs about 17 points more Democratic.

Preventive-care access and voter turnout

Places with limited routine preventive-care access tend to turn out at a lower rate; Northern Hills, San Antonio, TX sits below the national average 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 Northern Hills looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Northern Hills is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.