70431 is a Republican stronghold. About 14% of voters here vote Democratic and 86% Republican.
About 78% of adults in 70431 typically vote, above the U.S. average of about 62%. Among adults in 70431, ~11% vote Democratic, ~67% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How 70431 compares
Among zip codes within 15 miles, 70431 leans more Republican than 5 of 7 neighbors.
70431 runs about 51 points more Republican than Louisiana as a whole.
Politics vary noticeably by block within 70431. The southeast side is the most Republican-leaning (R+79) and the southwest side is the least Republican-leaning (R+61), a spread of about 18 points.
Why 70431 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 70431. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 70431, LA sits below the national average 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 70431 looks the way it does
Homeowners vote more often than renters. About 90% of households in 70431 own their home, about 14 points above the Louisiana average of 76%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.