70570 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 70% of adults in 70570 typically vote, above the U.S. average of about 62%. Among adults in 70570, ~42% vote Democratic, ~28% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 70570 compares
Among zip codes within 15 miles, 70570 is the most Democratic-leaning.
70570 runs about 42 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while 70570 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 70570. The north side runs the most Democratic (D+74) and the southeast side runs the most Republican (R+27), a spread of about 101 points.
Why 70570 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 70570, not a ranked or complete list of what matters most.
70570 votes against the grain of Louisiana. Louisiana leans Republican overall, while 70570 runs about 42 points more Democratic. A high never-married share predicts Democratic voting, and about 39% of adults in 70570 have never been married, above 86% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 70570, LA sits above the national average on this measure.
Why turnout in 70570 looks the way it does
Turnout in 70570 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.