Rosa leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.
About 77% of adults in Rosa typically vote, above the U.S. average of about 62%. Among adults in Rosa, ~48% vote Democratic, ~29% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How Rosa compares
Among cities within 25 miles, Rosa leans more Democratic than 51 of 53 neighbors.
Rosa runs about 47 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while Rosa is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within Rosa. The east side runs the most Democratic (D+56) and the southwest side runs the most Republican (R+67), a spread of about 123 points.
Why Rosa 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 Rosa, not a ranked or complete list of what matters most.
Rosa votes against the grain of Louisiana. Louisiana leans Republican overall, while Rosa runs about 47 points more Democratic. A high never-married share predicts Democratic voting, and about 44% of adults in Rosa have never been married, above 96% of cities.
Housing overcrowding and voter turnout
Places with low overcrowding tend to turn out at a higher rate; Rosa, LA sits in the bottom tenth nationally on this measure.
Why turnout in Rosa looks the way it does
Turnout in Rosa 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
- Lebeau, LA R+23
- Palmetto, LA R+22
- Waxia, LA R+34
- Morrow, LA R+61
- Washington, LA R+68
- Le Moyen, LA R+45
- Elba, LA R+82
- Woodside, LA R+71
- Port Barre, LA R+59
- Whiteville, LA R+60
Cities with Similar Populations
- Woodland, MO R+66
- Creamery, WV R+55
- Clear Fork, VA R+65
- Callensburg, PA R+69
- Colmar, IL R+51
- Connerville, OK R+63
- Cook Corners, NY R+25
- Sunny Hill, IL R+33
- Goddard, IA R+45
- Etlah, MO R+65
All Local Stats
Home Services
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.