Ouachita Parish leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 64% of adults in Ouachita Parish typically vote, near the U.S. average of about 62%. Among adults in Ouachita Parish, ~28% vote Democratic, ~36% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How Ouachita Parish compares
Among counties within 50 miles, Ouachita Parish leans more Republican than 1 of 9 neighbors.
Ouachita Parish runs about 9 points more Democratic than Louisiana as a whole.
Politics vary noticeably by city within Ouachita Parish. The south side runs the most Democratic (D+78) and the northwest side runs the most Republican (R+70), a spread of about 148 points.
Why Ouachita 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 Ouachita Parish, not a ranked or complete list of what matters most.
Ouachita Parish votes Republican even though it is densely developed (about 58%, far above the Louisiana average of 25%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Ouachita Parish, LA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Ouachita Parish looks the way it does
Turnout in Ouachita 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
- Morehouse Parish, LA R+3
- Union Parish, LA R+49
- Richland Parish, LA R+38
- Lincoln Parish, LA R+13
- Caldwell Parish, LA R+73
- Jackson Parish, LA R+43
- Franklin Parish, LA R+38
- West Carroll Parish, LA R+70
- Ashley County, AR R+46
- Winn Parish, LA R+44
Counties with Similar Populations
- Jackson County, MI R+14
- St. Clair County, MI R+31
- Catawba County, NC R+33
- Indian River County, FL R+21
- Rensselaer County, NY D+6
- Alexandria City, VA D+55
- Comal County, TX R+36
- Dorchester County, SC R+12
- Johnson County, IN R+35
- Portage County, OH R+12
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.