Jefferson Davis Parish is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 67% of adults in Jefferson Davis Parish typically vote, near the U.S. average of about 62%. Among adults in Jefferson Davis Parish, ~13% vote Democratic, ~54% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Jefferson Davis Parish compares
Among counties within 50 miles, Jefferson Davis Parish leans more Republican than 7 of 9 neighbors.
Jefferson Davis Parish runs about 38 points more Republican than Louisiana as a whole.
Politics vary noticeably by city within Jefferson Davis Parish. The northeast side is the most Republican-leaning (R+77) and the southeast side is the least Republican-leaning (R+37), a spread of about 41 points.
Why Jefferson Davis 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 Jefferson Davis Parish, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in Jefferson Davis Parish drive to work alone, about 13 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and Jefferson Davis Parish sits in the bottom quarter (about 15%, below 89% of counties).
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Jefferson Davis Parish, LA sits near the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Jefferson Davis Parish looks the way it does
Turnout in Jefferson Davis Parish 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 Counties
- Acadia Parish, LA R+54
- Allen Parish, LA R+48
- Calcasieu Parish, LA R+29
- Cameron Parish, LA R+86
- Evangeline Parish, LA R+39
- Vermilion Parish, LA R+55
- St. Landry Parish, LA R+11
- Lafayette Parish, LA R+23
- Beauregard Parish, LA R+70
- St. Martin Parish, LA R+35
Counties with Similar Populations
- Juneau City and Borough, AK D+22
- Chester County, SC R+16
- Henry County, TN R+55
- Lyon County, KS R+14
- Evangeline Parish, LA R+39
- Franklin County, AL R+63
- Claiborne County, TN R+70
- Hale County, TX R+44
- Dorchester County, MD R+9
- Logan County, WV R+66
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.