71129 leans Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.
About 71% of adults in 71129 typically vote, above the U.S. average of about 62%. Among adults in 71129, ~46% vote Democratic, ~25% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 71129 compares
Among zip codes within 15 miles, 71129 leans more Democratic than 14 of 19 neighbors.
71129 runs about 51 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while 71129 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 71129. The northeast side runs the most Democratic (D+72) and the southwest side runs the most Republican (R+41), a spread of about 113 points.
Why 71129 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 71129, not a ranked or complete list of what matters most.
71129 votes against the grain of Louisiana. Louisiana leans Republican overall, while 71129 runs about 51 points more Democratic.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 71129, LA sits above 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 71129 looks the way it does
Turnout in 71129 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.