Bayou Shore, Galveston, TX Political Map | Democrat & Republican Areas in Bayou Shore

Bayou Shore leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.

 
Bayou Shore, Galveston, TX block-group political-lean map
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About 44% of adults in Bayou Shore typically vote, below the U.S. average of about 62%. Among adults in Bayou Shore, ~26% vote Democratic, ~18% Republican, and ~56% don't vote. The map below shows estimated turnout by block group.

Bayou Shore, Galveston, TX block-group voter-turnout map
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How Bayou Shore compares

Bayou Shore runs about 33 points more Democratic than Texas as a whole. Texas leans Republican overall, while Bayou Shore is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within Bayou Shore. The northeast side runs the most Democratic (D+34) and the southwest side runs the most Republican (Even), a spread of about 35 points.

Why Bayou Shore 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 Bayou Shore, not a ranked or complete list of what matters most.

Bayou Shore votes against the grain of Texas. Texas leans Republican overall, while Bayou Shore runs about 33 points more Democratic.

Preventive-care access and voter turnout

Places with limited routine preventive-care access tend to turn out at a lower rate; Bayou Shore, Galveston, 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 Bayou Shore looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Bayou Shore 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 48%, about 6 points below the Texas average of 54%. Low high-school completion lines up with lower turnout, and about 74% of adults in Bayou Shore have completed high school, below 92% of neighborhoods. High-crime urban areas turn out at lower rates, and Bayou Shore sits in the top 15% on a violent-crime measure. 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.