City vs city
Donaldsonville vs Napoleonville, LA
Napoleonville currently scores 9 points higher overall than Donaldsonville, 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 uses an ingested EPA AirNow snapshot and may not reflect current conditions; 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
Donaldsonville: 39/100 · Napoleonville: 48/100
Napoleonville is 9 points higher.
Flood
Donaldsonville: 27/100 · Napoleonville: 21/100
Donaldsonville is 6 points higher.
Donaldsonville: FEMA NFHL flood zones: 10 features intersect this tile.
Napoleonville: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Donaldsonville: 42/100 · Napoleonville: 45/100
Napoleonville is 3 points higher.
Donaldsonville: Wind exposure derived from ingested design wind / climatology tiles.
Napoleonville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Donaldsonville: 92/100 · Napoleonville: 85/100
Donaldsonville is 7 points higher.
Donaldsonville: Lightning exposure derived from ingested climatology tiles.
Napoleonville: Lightning exposure derived from ingested climatology tiles.
Tornado
Donaldsonville: 15/100 · Napoleonville: 96/100
Napoleonville is 81 points higher.
Donaldsonville: Tornado risk derived from NOAA SPC historical reports.
Napoleonville: Tornado risk derived from NOAA SPC historical reports.
Hail
Donaldsonville: 4/100 · Napoleonville: 14/100
Napoleonville is 10 points higher.
Donaldsonville: Hail risk derived from NOAA SPC historical reports.
Napoleonville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Donaldsonville: 97/100 · Napoleonville: 97/100
No gap.
Donaldsonville: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Napoleonville: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Donaldsonville: 10/100 · Napoleonville: 1/100
Donaldsonville is 9 points higher.
Donaldsonville: Wildfire exposure derived from ingested fire potential tiles.
Napoleonville: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Donaldsonville: 28/100 · Napoleonville: 23/100
Donaldsonville is 5 points higher.
Donaldsonville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Napoleonville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.