City vs city
Harahan vs Jefferson, LA
Harahan currently scores 1 points higher overall than Jefferson, with the largest gap in tornado.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality is a current EPA AirNow signal; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Harahan: 62/100 · Jefferson: 61/100
Harahan is 1 points higher.
Flood
Harahan: 24/100 · Jefferson: 25/100
Jefferson is 1 points higher.
Harahan: FEMA NFHL flood zones: 17 features intersect this tile.
Jefferson: FEMA NFHL flood zones: 21 features intersect this tile.
Wind
Harahan: 47/100 · Jefferson: 49/100
Jefferson is 2 points higher.
Harahan: Wind exposure derived from ingested design wind / climatology tiles.
Jefferson: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harahan: 93/100 · Jefferson: 92/100
Harahan is 1 points higher.
Harahan: Lightning exposure derived from ingested climatology tiles.
Jefferson: Lightning exposure derived from ingested climatology tiles.
Tornado
Harahan: 85/100 · Jefferson: 65/100
Harahan is 20 points higher.
Harahan: Tornado risk derived from NOAA SPC historical reports.
Jefferson: Tornado risk derived from NOAA SPC historical reports.
Hail
Harahan: 100/100 · Jefferson: 100/100
No gap.
Harahan: Hail risk derived from NOAA SPC historical reports.
Jefferson: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harahan: 99/100 · Jefferson: 99/100
No gap.
Harahan: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Jefferson: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Harahan: 29/100 · Jefferson: 31/100
Jefferson is 2 points higher.
Harahan: Wildfire exposure derived from ingested fire potential tiles.
Jefferson: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Harahan: 16/100 · Jefferson: 26/100
Jefferson is 10 points higher.
Harahan: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Jefferson: Air quality signal derived from the latest EPA AirNow combined AQI grid.