Union Parish leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 67% of adults in Union Parish typically vote, near the U.S. average of about 62%. Among adults in Union Parish, ~17% vote Democratic, ~50% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Union Parish compares
Among counties within 50 miles, Union Parish is the most Republican-leaning.
Union Parish runs about 27 points more Republican than Louisiana as a whole.
Politics vary noticeably by city within Union Parish. The southeast side is the most Republican-leaning (R+86) and the west side is the least Republican-leaning (R+27), a spread of about 59 points.
Why Union 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 Union Parish, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 11% of residents in Union Parish live in densely developed areas, about 14 points below the Louisiana average of 25%. Low college attainment predicts Republican voting, and Union Parish sits in the bottom quarter (about 14%, below 90% of counties).
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Union 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 Union Parish looks the way it does
Turnout in Union 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
- Lincoln Parish, LA R+13
- Ouachita Parish, LA R+13
- Morehouse Parish, LA R+3
- Union County, AR R+20
- Claiborne Parish, LA R+11
- Jackson Parish, LA R+43
- Ashley County, AR R+46
- Richland Parish, LA R+38
- Bienville Parish, LA R+16
- Caldwell Parish, LA R+73
Counties with Similar Populations
- Logan County, AR R+63
- Jackson County, WI R+21
- Assumption Parish, LA R+30
- Morgan County, TN R+70
- Clinton County, MO R+48
- Madison County, NC R+34
- Morgan County, MO R+63
- Shelby County, IL R+58
- Gray County, TX R+59
- Fillmore County, MN R+32
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.