70518 leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 77% of adults in 70518 typically vote, above the U.S. average of about 62%. Among adults in 70518, ~22% vote Democratic, ~54% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.
How 70518 compares
Among zip codes within 15 miles, 70518 leans more Republican than 10 of 18 neighbors.
70518 runs about 21 points more Republican than Louisiana as a whole.
Politics vary noticeably by block within 70518. The northeast side is the most Republican-leaning (R+58) and the north side is the least Republican-leaning (R+36), a spread of about 22 points.
Why 70518 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 70518, not a ranked or complete list of what matters most.
70518 votes Republican even though it is densely developed (about 64%, far above the Louisiana average of 25%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 70518, LA sits above the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 70518 looks the way it does
Turnout in 70518 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 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.