City vs city
Charleston vs Keowee Key, SC
Charleston currently scores 23 points higher overall than Keowee Key, with the largest gap in flood.
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
Charleston: 61/100 · Keowee Key: 38/100
Charleston is 23 points higher.
Flood
Charleston: 89/100 · Keowee Key: 30/100
Charleston is 59 points higher.
Charleston: FEMA NFHL flood zones: 33 features intersect this tile.
Keowee Key: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Charleston: 52/100 · Keowee Key: 16/100
Charleston is 36 points higher.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Keowee Key: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 45/100 · Keowee Key: 45/100
No gap.
Charleston: Lightning exposure derived from ingested climatology tiles.
Keowee Key: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 65/100 · Keowee Key: 15/100
Charleston is 50 points higher.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Keowee Key: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 100/100 · Keowee Key: 81/100
Charleston is 19 points higher.
Charleston: Hail risk derived from NOAA SPC historical reports.
Keowee Key: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: 98/100 · Keowee Key: Unavailable
A score difference cannot be calculated without both sources.
Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Keowee Key: Storm surge model is not available for this location yet.
Wildfire
Charleston: 15/100 · Keowee Key: 54/100
Keowee Key is 39 points higher.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Keowee Key: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Charleston: 26/100 · Keowee Key: 28/100
Keowee Key is 2 points higher.
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.
Keowee Key: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.