City vs city
Charleston vs Coosawhatchie, SC
Charleston currently scores 10 points higher overall than Coosawhatchie, with the largest gap in hail.
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
Charleston: 60/100 · Coosawhatchie: 50/100
Charleston is 10 points higher.
Flood
Charleston: 78/100 · Coosawhatchie: 43/100
Charleston is 35 points higher.
Charleston: FEMA NFHL flood zones: 28 features intersect this tile.
Coosawhatchie: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Charleston: 51/100 · Coosawhatchie: 40/100
Charleston is 11 points higher.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Coosawhatchie: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 49/100 · Coosawhatchie: 71/100
Coosawhatchie is 22 points higher.
Charleston: Lightning exposure derived from ingested climatology tiles.
Coosawhatchie: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 12/100 · Coosawhatchie: 0/100
Charleston is 12 points higher.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Coosawhatchie: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 100/100 · Coosawhatchie: 14/100
Charleston is 86 points higher.
Charleston: Hail risk derived from NOAA SPC historical reports.
Coosawhatchie: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: 99/100 · Coosawhatchie: 92/100
Charleston is 7 points higher.
Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Coosawhatchie: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Charleston: 63/100 · Coosawhatchie: 72/100
Coosawhatchie is 9 points higher.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Coosawhatchie: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Charleston: 26/100 · Coosawhatchie: 21/100
Charleston is 5 points higher.
Charleston: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Coosawhatchie: Air quality signal derived from the latest EPA AirNow combined AQI grid.