Harahan leans Republican by roughly 28 points: about 36% of voters vote Democratic and 64% Republican.
About 70% of adults in Harahan typically vote, above the U.S. average of about 62%. Among adults in Harahan, ~25% vote Democratic, ~45% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Harahan compares
Among cities within 25 miles, Harahan leans more Republican than 35 of 51 neighbors.
Harahan runs about 7 points more Republican than Louisiana as a whole.
Politics vary noticeably by neighborhood within Harahan. The west side is the most Republican-leaning (R+40) and the north side is the least Republican-leaning (R+10), a spread of about 30 points.
Why Harahan leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Harahan, not a ranked or complete list of what matters most.
Harahan votes Republican even though it is densely developed (about 88%, far above the Louisiana average of 25%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Harahan, LA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Harahan looks the way it does
Turnout in Harahan 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 Cities
- River Ridge, LA R+20
- Waggaman, LA D+42
- Avondale, LA D+8
- Bridge City, LA D+22
- Jefferson, LA D+7
- Kennedy Heights, LA D+21
- South Kenner, LA R+4
- Metairie, LA R+14
- Westwego, LA R+11
- Ama, LA R+9
Cities with Similar Populations
- Madison, FL D+5
- Bel Aire, KS R+10
- Ayden, NC R+8
- Cornelia, GA R+50
- Sioux Center, IA R+47
- Valdese, NC R+43
- New Richmond, OH R+50
- Helena Valley West Central, MT R+16
- Toronto, OH R+45
- Springfield, GA R+38
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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.