St. Rose leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 69% of adults in St. Rose typically vote, above the U.S. average of about 62%. Among adults in St. Rose, ~41% vote Democratic, ~28% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How St. Rose compares
Among cities within 25 miles, St. Rose leans more Democratic than 45 of 59 neighbors.
St. Rose runs about 43 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while St. Rose is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within St. Rose. The west side runs the most Democratic (D+73) and the northeast side runs the most Republican (R+16), a spread of about 89 points.
Why St. Rose 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 St. Rose, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 65% of residents in St. Rose live in densely developed areas, about 28 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 36% of adults in St. Rose have never been married, above 90% of cities. St. Rose runs against the grain of Louisiana, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; St. Rose, LA sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in St. Rose looks the way it does
Turnout in St. Rose 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
- Ama, LA R+9
- South Kenner, LA R+4
- Destrehan, LA R+34
- Luling, LA R+39
- New Sarpy, LA R+17
- Waggaman, LA D+42
- Kenner, LA Even
- River Ridge, LA R+20
- Hahnville, LA D+6
- Boutte, LA D+22
Cities with Similar Populations
- Mannford, OK R+64
- Willow Park, TX R+53
- Longboat Key, FL R+7
- Indian Head, MD D+26
- Bellaire, OH R+39
- Andrews, SC D+4
- Lucas, TX R+34
- Wilmore, KY R+36
- South Hamilton, MA D+26
- Lytle, TX R+27
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.