Assumption Parish, LA Political Map | Democrat & Republican Areas in Assumption Parish

By the BestNeighborhood data science team. Last updated May 2026.

Assumption Parish leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.

 

About 72% of adults in Assumption Parish typically vote, above the U.S. average of about 62%. Among adults in Assumption Parish, ~25% vote Democratic, ~47% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.

How Assumption Parish compares

Among counties within 50 miles, Assumption Parish leans more Republican than 8 of 12 neighbors.

Assumption Parish runs about 8 points more Republican than Louisiana as a whole.

Politics vary noticeably by city within Assumption Parish. The northeast side runs the most Democratic (D+41) and the southwest side runs the most Republican (R+80), a spread of about 121 points.

Why Assumption 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 Assumption Parish, not a ranked or complete list of what matters most.

Rural areas vote Republican. About 12% of residents in Assumption Parish live in densely developed areas, about 13 points below the Louisiana average of 25%. Low college attainment predicts Republican voting, and Assumption Parish sits in the bottom quarter (about 14%, below 90% of counties).

Population density and Republican lean

Places with low population density tend to lean Republican; Assumption Parish, LA sits below the national average on this measure.

Why turnout in Assumption Parish looks the way it does

Homeowners vote more often than renters. About 85% of households in Assumption Parish own their home, about 9 points above the Louisiana average of 76%. Learn more about the findings and methodology on the political spectrum map.

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.