70377 is a Republican stronghold. About 11% of voters here vote Democratic and 89% Republican.
About 61% of adults in 70377 typically vote, near the U.S. average of about 62%. Among adults in 70377, ~7% vote Democratic, ~54% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 70377 compares
Among zip codes within 15 miles, 70377 leans more Republican than 8 of 9 neighbors.
70377 runs about 56 points more Republican than Louisiana as a whole.
Why 70377 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 70377, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 7% of adults in 70377 hold a bachelor's degree, about 12 points below the Louisiana average of 19%. Car-dependent areas vote Republican, and about 84% of residents in 70377 drive to work alone, above 85% of zip codes. A high family-household share predicts Republican voting, and about 75% of households in 70377 are family households, above 81% of zip codes.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 70377, 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 70377 looks the way it does
Areas with high food insecurity turn out at lower rates. About 28% of adults in 70377 report food insecurity, about 12 points above the U.S. average of 16%. Limited routine healthcare access lines up with lower turnout, and 70377 sits in the bottom quarter on routine-care measures. Low high-school completion lines up with lower turnout, and about 69% of adults in 70377 have completed high school, below 98% 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.