Washington Parish leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 65% of adults in Washington Parish typically vote, near the U.S. average of about 62%. Among adults in Washington Parish, ~21% vote Democratic, ~44% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How Washington Parish compares
Among counties within 50 miles, Washington Parish leans more Republican than 7 of 10 neighbors.
Washington Parish runs about 14 points more Republican than Louisiana as a whole.
Politics vary noticeably by city within Washington Parish. The southeast side runs the most Democratic (D+40) and the southwest side runs the most Republican (R+79), a spread of about 118 points.
Why Washington 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 Washington Parish, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 13% of adults in Washington Parish hold a bachelor's degree, about 6 points below the Louisiana average of 19%.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Washington Parish, LA sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Washington Parish looks the way it does
Turnout in Washington 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
- Walthall County, MS R+26
- Pearl River County, MS R+60
- Marion County, MS R+33
- St. Tammany Parish, LA R+35
- Tangipahoa Parish, LA R+31
- Pike County, MS D+8
- St. Helena Parish, LA D+7
- Lamar County, MS R+40
- Hancock County, MS R+53
- Lawrence County, MS R+30
Counties with Similar Populations
- Dunn County, WI R+15
- Hopkins County, KY R+48
- Calaveras County, CA R+29
- Greene County, AR R+58
- Hillsdale County, MI R+43
- Thomas County, GA R+18
- Osage County, OK R+39
- Perry County, PA R+52
- Shelby County, IN R+47
- Caldwell County, TX R+17
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.