City vs city
Bonneau vs Charleston, SC
Charleston currently scores 9 points higher overall than Bonneau, with the largest gap in wildfire.
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
Bonneau: 52/100 · Charleston: 61/100
Charleston is 9 points higher.
Flood
Bonneau: 36/100 · Charleston: 89/100
Charleston is 53 points higher.
Bonneau: FEMA NFHL flood zones: 4 features intersect this tile.
Charleston: FEMA NFHL flood zones: 33 features intersect this tile.
Wind
Bonneau: 43/100 · Charleston: 52/100
Charleston is 9 points higher.
Bonneau: Wind exposure derived from ingested design wind / climatology tiles.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Bonneau: 69/100 · Charleston: 45/100
Bonneau is 24 points higher.
Bonneau: Lightning exposure derived from ingested climatology tiles.
Charleston: Lightning exposure derived from ingested climatology tiles.
Tornado
Bonneau: 15/100 · Charleston: 65/100
Charleston is 50 points higher.
Bonneau: Tornado risk derived from NOAA SPC historical reports.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Hail
Bonneau: 100/100 · Charleston: 100/100
No gap.
Bonneau: Hail risk derived from NOAA SPC historical reports.
Charleston: Hail risk derived from NOAA SPC historical reports.
Storm surge
Bonneau: Unavailable · Charleston: 98/100
A score difference cannot be calculated without both sources.
Bonneau: Storm surge model is not available for this location yet.
Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Bonneau: 79/100 · Charleston: 15/100
Bonneau is 64 points higher.
Bonneau: Wildfire exposure derived from ingested fire potential tiles.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Bonneau: 21/100 · Charleston: 26/100
Charleston is 5 points higher.
Bonneau: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Charleston: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.