Pecan Valley, San Antonio, TX Political Map | Democrat & Republican Areas in Pecan Valley

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

Pecan Valley leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.

 

About 43% of adults in Pecan Valley typically vote, below the U.S. average of about 62%. Among adults in Pecan Valley, ~27% vote Democratic, ~16% Republican, and ~57% don't vote. The map below shows estimated turnout by block group.

How Pecan Valley compares

Among neighborhoods within 5 miles, Pecan Valley leans more Democratic than 3 of 13 neighbors.

Pecan Valley runs about 40 points more Democratic than Texas as a whole. Texas leans Republican overall, while Pecan Valley is one of the few Democratic-leaning pockets.

Why Pecan Valley 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 Pecan Valley, not a ranked or complete list of what matters most.

Pecan Valley votes against the grain of Texas. Texas leans Republican overall, while Pecan Valley runs about 40 points more Democratic.

Preventive-care access and voter turnout

Places with limited routine preventive-care access tend to turn out at a lower rate; Pecan Valley, San Antonio, TX sits in the bottom quarter 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 Pecan Valley looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Pecan Valley 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 47%, about 6 points below the Texas average of 54%. Low high-school completion lines up with lower turnout, and about 71% of adults in Pecan Valley have completed high school, below 94% of 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.