70819 leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 55% of adults in 70819 typically vote, below the U.S. average of about 62%. Among adults in 70819, ~38% vote Democratic, ~18% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How 70819 compares
Among zip codes within 15 miles, 70819 leans more Democratic than 18 of 28 neighbors.
70819 runs about 58 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while 70819 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 70819. The northeast side is the most Democratic-leaning (D+53) and the south side is the least Democratic-leaning (D+23), a spread of about 30 points.
Why 70819 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 70819, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 70819 is about 25%, about 48 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 46% of adults in 70819 have never been married, above 93% of zip codes. 70819 runs against the grain of Louisiana, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 70819, LA sits in the top quarter nationally 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 70819 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 70819 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. High food insecurity lines up with lower turnout, and about 30% of adults in 70819 report food insecurity, above 94% of zip codes. 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.