City vs city
Kiawah Island vs Rockville, SC
Kiawah Island currently scores 7 points higher overall than Rockville, 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
Kiawah Island: 51/100 · Rockville: 44/100
Kiawah Island is 7 points higher.
Flood
Kiawah Island: 100/100 · Rockville: 72/100
Kiawah Island is 28 points higher.
Kiawah Island: FEMA NFHL flood zones: 21 features intersect this tile.
Rockville: FEMA NFHL flood zones: 20 features intersect this tile.
Wind
Kiawah Island: 52/100 · Rockville: 51/100
Kiawah Island is 1 points higher.
Kiawah Island: Wind exposure derived from ingested design wind / climatology tiles.
Rockville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Kiawah Island: 45/100 · Rockville: 48/100
Rockville is 3 points higher.
Kiawah Island: Lightning exposure derived from ingested climatology tiles.
Rockville: Lightning exposure derived from ingested climatology tiles.
Tornado
Kiawah Island: 15/100 · Rockville: 23/100
Rockville is 8 points higher.
Kiawah Island: Tornado risk derived from NOAA SPC historical reports.
Rockville: Tornado risk derived from NOAA SPC historical reports.
Hail
Kiawah Island: 17/100 · Rockville: 13/100
Kiawah Island is 4 points higher.
Kiawah Island: Hail risk derived from NOAA SPC historical reports.
Rockville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Kiawah Island: 98/100 · Rockville: 98/100
No gap.
Kiawah Island: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Rockville: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Kiawah Island: 51/100 · Rockville: 18/100
Kiawah Island is 33 points higher.
Kiawah Island: Wildfire exposure derived from ingested fire potential tiles.
Rockville: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Kiawah Island: 26/100 · Rockville: 26/100
No gap.
Kiawah Island: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rockville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.