Rousseau is a Republican stronghold. About 13% of voters here vote Democratic and 87% Republican.
About 73% of adults in Rousseau typically vote, above the U.S. average of about 62%. Among adults in Rousseau, ~9% vote Democratic, ~64% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How Rousseau compares
Among cities within 25 miles, Rousseau leans more Republican than 53 of 74 neighbors.
Rousseau runs about 52 points more Republican than Louisiana as a whole.
Politics vary noticeably by neighborhood within Rousseau. The south side is the most Republican-leaning (R+81) and the southwest side is the least Republican-leaning (R+71), a spread of about 11 points.
Why Rousseau leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Rousseau. The lean here lands roughly where demographic data alone would predict.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Rousseau, LA sits above the national average on this measure.
Why turnout in Rousseau looks the way it does
Turnout in Rousseau 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
- Lafourche, LA R+81
- Gray, LA R+40
- Schriever, LA R+53
- Thibodaux, LA R+33
- Choctaw, LA R+81
- Raceland, LA R+45
- Bayou Blue, LA R+75
- Bayou Cane, LA R+47
- Leighton, LA R+19
- Chackbay, LA R+80
Cities with Similar Populations
- Jacobs Prairie, MN R+37
- Scotia, NE R+67
- White Oak, AL R+69
- Humeston, IA R+56
- Chatawa, MS R+15
- Kipp, KS R+62
- Clifton, KS R+73
- Highpoint, MS D+38
- Clear Fork, WV R+74
- Knippa, TX R+51
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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.