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

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

Ascension Parish leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.

 

About 78% of adults in Ascension Parish typically vote, above the U.S. average of about 62%. Among adults in Ascension Parish, ~27% vote Democratic, ~51% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.

How Ascension Parish compares

Among counties within 50 miles, Ascension Parish leans more Republican than 12 of 15 neighbors.

Ascension Parish runs about 10 points more Republican than Louisiana as a whole.

Politics vary noticeably by city within Ascension Parish. The southwest side runs the most Democratic (D+42) and the northeast side runs the most Republican (R+59), a spread of about 101 points.

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

Car-dependent areas vote Republican. About 82% of residents in Ascension Parish drive to work alone, about 8 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 75% of households in Ascension Parish are family households, above 95% of counties.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Ascension Parish, LA sits above the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Ascension Parish looks the way it does

Homeowners vote more often than renters. About 83% of households in Ascension Parish own their home, about 6 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.