City vs city
Charleston vs Ridge Spring, SC
Charleston currently scores 14 points higher overall than Ridge Spring, 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 · Ridge Spring: 47/100
Charleston is 14 points higher.
Flood
Charleston: 89/100 · Ridge Spring: 23/100
Charleston is 66 points higher.
Charleston: FEMA NFHL flood zones: 33 features intersect this tile.
Ridge Spring: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Charleston: 52/100 · Ridge Spring: 21/100
Charleston is 31 points higher.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Ridge Spring: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 45/100 · Ridge Spring: 64/100
Ridge Spring is 19 points higher.
Charleston: Lightning exposure derived from ingested climatology tiles.
Ridge Spring: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 65/100 · Ridge Spring: 54/100
Charleston is 11 points higher.
Charleston: Tornado risk derived from NOAA SPC historical reports.
Ridge Spring: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 100/100 · Ridge Spring: 76/100
Charleston is 24 points higher.
Charleston: Hail risk derived from NOAA SPC historical reports.
Ridge Spring: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: 98/100 · Ridge Spring: Unavailable
A score difference cannot be calculated without both sources.
Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Ridge Spring: Storm surge model is not available for this location yet.
Wildfire
Charleston: 15/100 · Ridge Spring: 62/100
Ridge Spring is 47 points higher.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
Ridge Spring: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Charleston: 26/100 · Ridge Spring: 26/100
No gap.
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.
Ridge Spring: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.