Carville leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 66% of adults in Carville typically vote, near the U.S. average of about 62%. Among adults in Carville, ~45% vote Democratic, ~21% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How Carville compares
Among cities within 25 miles, Carville leans more Democratic than 47 of 59 neighbors.
Carville runs about 59 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while Carville is one of the few Democratic-leaning pockets.
Why Carville 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 Carville, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in Carville is about 20%, about 52 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 60% of adults in Carville have never been married, in the top fraction of cities. Carville runs against the grain of Louisiana, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Carville, LA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Carville looks the way it does
Turnout in Carville sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Seymourville, LA D+57
- White Castle, LA D+25
- St. Gabriel, LA Even
- Bayou Goula, LA D+34
- Sunshine, LA D+14
- Geismar, LA R+25
- Barton, LA D+42
- Belle Terre, LA D+5
Cities with Similar Populations
- Randolph, NE R+67
- Perrysville, IN R+62
- Tildenville, FL D+13
- Buena Vista, AZ R+41
- Mulberry Grove, IL R+44
- Highland, VA R+58
- Morgan, PA R+17
- Goldsboro, GA R+68
- Myra, WI R+42
- Claverack, NY R+5
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.