71103 is a Democratic stronghold. About 91% of voters here vote Democratic and 9% Republican.
About 55% of adults in 71103 typically vote, below the U.S. average of about 62%. Among adults in 71103, ~50% vote Democratic, ~5% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.
How 71103 compares
Among zip codes within 15 miles, 71103 leans more Democratic than 19 of 20 neighbors.
71103 runs about 104 points more Democratic than Louisiana as a whole. Louisiana leans Republican overall, while 71103 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 71103. The northwest side is the most Democratic-leaning (D+89) and the southeast side is the least Democratic-leaning (D+68), a spread of about 20 points.
Why 71103 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 71103, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 71103 is about 17%, about 55 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 51% of adults in 71103 have never been married, above 95% of zip codes. 71103 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; 71103, LA sits in the bottom tenth 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 71103 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 71103 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 42%, about 14 points below the Louisiana average of 55%. Renters vote less often than owners, and about 55% of households in 71103 rent, about 30 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 48% of adults in 71103 report food insecurity, in the top fraction 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.