City vs city
North Charleston vs Rock Hill, SC
North Charleston currently scores 14 points higher overall than Rock Hill, with the largest gap in wind.
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
North Charleston: 56/100 · Rock Hill: 42/100
North Charleston is 14 points higher.
Flood
North Charleston: 39/100 · Rock Hill: 33/100
North Charleston is 6 points higher.
North Charleston: FEMA NFHL flood zones: 13 features intersect this tile.
Rock Hill: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
North Charleston: 48/100 · Rock Hill: 19/100
North Charleston is 29 points higher.
North Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Rock Hill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
North Charleston: 56/100 · Rock Hill: 46/100
North Charleston is 10 points higher.
North Charleston: Lightning exposure derived from ingested climatology tiles.
Rock Hill: Lightning exposure derived from ingested climatology tiles.
Tornado
North Charleston: 27/100 · Rock Hill: 19/100
North Charleston is 8 points higher.
North Charleston: Tornado risk derived from NOAA SPC historical reports.
Rock Hill: Tornado risk derived from NOAA SPC historical reports.
Hail
North Charleston: 100/100 · Rock Hill: 100/100
No gap.
North Charleston: Hail risk derived from NOAA SPC historical reports.
Rock Hill: Hail risk derived from NOAA SPC historical reports.
Storm surge
North Charleston: 83/100 · Rock Hill: Unavailable
A score difference cannot be calculated without both sources.
North Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Rock Hill: Storm surge model is not available for this location yet.
Wildfire
North Charleston: 72/100 · Rock Hill: 52/100
North Charleston is 20 points higher.
North Charleston: Wildfire exposure derived from ingested fire potential tiles.
Rock Hill: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
North Charleston: 26/100 · Rock Hill: 24/100
North Charleston is 2 points higher.
North 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.
Rock Hill: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.