Lafourche Parish is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 67% of adults in Lafourche Parish typically vote, near the U.S. average of about 62%. Among adults in Lafourche Parish, ~15% vote Democratic, ~52% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Lafourche Parish compares
Among counties within 50 miles, Lafourche Parish is the most Republican-leaning.
Lafourche Parish runs about 33 points more Republican than Louisiana as a whole.
Politics vary noticeably by city within Lafourche Parish. The south side is the most Republican-leaning (R+82) and the northwest side is the least Republican-leaning (R+36), a spread of about 46 points.
Why Lafourche Parish leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Lafourche Parish, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 69% of households in Lafourche Parish are family households, above 75% of counties.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Lafourche Parish, LA sits in the top quarter nationally on this measure.
Why turnout in Lafourche Parish looks the way it does
Homeowners vote more often than renters. About 80% of households in Lafourche Parish own their home, about 5 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Terrebonne Parish, LA R+42
- St. Charles Parish, LA R+25
- St. James Parish, LA D+3
- St. John the Baptist Parish, LA D+27
- Assumption Parish, LA R+30
- Jefferson Parish, LA D+4
- Orleans Parish, LA D+63
- St. Mary Parish, LA R+23
- Ascension Parish, LA R+32
- Plaquemines Parish, LA R+27
Counties with Similar Populations
- Ashtabula County, OH R+32
- Marshall County, AL R+64
- Putnam County, NY R+13
- Bastrop County, TX R+24
- Portsmouth City, VA D+41
- Sherburne County, MN R+29
- Roanoke County, VA R+23
- Franklin County, WA R+16
- Sevier County, TN R+58
- Walton County, GA R+37
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.