70043 leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 53% of adults in 70043 typically vote, below the U.S. average of about 62%. Among adults in 70043, ~24% vote Democratic, ~29% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.
How 70043 compares
Among zip codes within 15 miles, 70043 leans more Republican than 26 of 34 neighbors.
70043 runs about 12 points more Democratic than Louisiana as a whole.
Politics vary noticeably by block within 70043. The northwest side runs the most Democratic (D+27) and the southeast side runs the most Republican (R+34), a spread of about 61 points.
Why 70043 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 70043, not a ranked or complete list of what matters most.
70043 votes Republican even though it is densely developed (about 93%, far above the Louisiana average of 25%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Low college attainment predicts Republican voting, and 70043 sits in the bottom quarter (about 13%, below 88% of zip codes).
Never-married share, developed land, and voter turnout
Places that combine a never-married-heavy adult population and a heavily developed built environment tend to turn out at a lower rate, as 70043, LA does.
Why turnout in 70043 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 70043 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 41% of households in 70043 rent, about 16 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 29% of adults in 70043 report food insecurity, above 93% 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.