St. Helena Parish leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 66% of adults in St. Helena Parish typically vote, near the U.S. average of about 62%. Among adults in St. Helena Parish, ~36% vote Democratic, ~30% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How St. Helena Parish compares
Among counties within 50 miles, St. Helena Parish leans more Democratic than 12 of 15 neighbors.
St. Helena Parish runs about 29 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while St. Helena Parish is one of the few Democratic-leaning pockets.
Politics vary noticeably by city within St. Helena Parish. The southeast side runs the most Democratic (D+30) and the northeast side runs the most Republican (R+46), a spread of about 77 points.
Why St. Helena 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 St. Helena Parish, not a ranked or complete list of what matters most.
Rural, majority-Black areas of the Southern Black Belt vote Democratic, against the usual rural pattern. About 50% of residents in St. Helena Parish are Black or African American, about 25 points above the Louisiana average of 25%. A high never-married share predicts Democratic voting, and about 41% of adults in St. Helena Parish have never been married, above 95% of counties. St. Helena Parish runs against the grain of Louisiana, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; St. Helena Parish, LA sits in the bottom tenth 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. Helena Parish looks the way it does
Turnout in St. Helena Parish sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Tangipahoa Parish, LA R+31
- Livingston Parish, LA R+66
- East Feliciana Parish, LA R+24
- Amite County, MS R+29
- East Baton Rouge Parish, LA D+23
- Pike County, MS D+8
- Ascension Parish, LA R+32
- Wilkinson County, MS D+38
- Washington Parish, LA R+36
- West Baton Rouge Parish, LA R+9
Counties with Similar Populations
- Lancaster County, VA R+9
- Noble County, OK R+54
- Washita County, OK R+74
- Lake County, MN R+5
- Alleghany County, NC R+58
- Lincoln County, WA R+54
- Wayne County, MO R+68
- McIntosh County, GA R+24
- Grant County, WV R+74
- Candler County, GA R+40
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.