Grand Bayou leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 86% of adults in Grand Bayou typically vote, above the U.S. average of about 62%. Among adults in Grand Bayou, ~52% vote Democratic, ~34% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Grand Bayou compares
Among cities within 25 miles, Grand Bayou leans more Democratic than 48 of 53 neighbors.
Grand Bayou runs about 43 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while Grand Bayou is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within Grand Bayou. The east side runs the most Democratic (D+23) and the southwest side runs the most Republican (R+7), a spread of about 30 points.
Why Grand Bayou leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Grand Bayou, not a ranked or complete list of what matters most.
Rural, majority-Black areas of the Southern Black Belt vote Democratic, against the usual rural pattern. About 58% of residents in Grand Bayou are Black or African American, about 33 points above the Louisiana average of 25%. A high never-married share predicts Democratic voting, and about 63% of adults in Grand Bayou have never been married, in the top fraction of cities. Grand Bayou runs against the grain of Louisiana, a Democratic-leaning pocket in a Republican-leaning state.
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as Grand Bayou, LA does.
Why turnout in Grand Bayou looks the way it does
Turnout in Grand Bayou sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Wemple, LA Even
- East Point, LA R+16
- Crichton, LA R+3
- Naborton, LA Even
- Edgefield, LA R+30
- Cross Roads, LA R+38
- Carmel, LA R+2
- Coushatta, LA R+5
Cities with Similar Populations
- Moore, UT R+75
- Stringtown, PA R+47
- Dickey Prairie, OR R+29
- Sun City, KS R+78
- Sonnette, MT R+72
- White River, CA R+45
Sources and methodology
Precinct-level voting records used to fit the model come from Louisiana Secretary of State, Elections, 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.