71203 leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 59% of adults in 71203 typically vote, near the U.S. average of about 62%. Among adults in 71203, ~32% vote Democratic, ~27% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How 71203 compares
Among zip codes within 15 miles, 71203 leans more Democratic than 7 of 9 neighbors.
71203 runs about 30 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while 71203 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 71203. The southwest side runs the most Democratic (D+80) and the northeast side runs the most Republican (R+52), a spread of about 132 points.
Why 71203 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 71203, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 43% of adults in 71203 have never been married, about 14 points above the U.S. average of 29%. 71203 runs against the grain of Louisiana, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 71203, LA sits in the bottom quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 71203 looks the way it does
Renters vote less often than owners. About 42% of households in 71203 rent, about 17 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 28% of adults in 71203 report food insecurity, above 92% 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.