City vs city
Mount Pleasant vs Sullivan's Island, SC
Mount Pleasant currently scores 1 points higher overall than Sullivan's Island, with the largest gap in tornado.
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
Mount Pleasant: 57/100 · Sullivan's Island: 56/100
Mount Pleasant is 1 points higher.
Flood
Mount Pleasant: 72/100 · Sullivan's Island: 69/100
Mount Pleasant is 3 points higher.
Mount Pleasant: FEMA NFHL flood zones: 25 features intersect this tile.
Sullivan's Island: FEMA NFHL flood zones: 18 features intersect this tile.
Wind
Mount Pleasant: 52/100 · Sullivan's Island: 53/100
Sullivan's Island is 1 points higher.
Mount Pleasant: Wind exposure derived from ingested design wind / climatology tiles.
Sullivan's Island: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mount Pleasant: 46/100 · Sullivan's Island: 43/100
Mount Pleasant is 3 points higher.
Mount Pleasant: Lightning exposure derived from ingested climatology tiles.
Sullivan's Island: Lightning exposure derived from ingested climatology tiles.
Tornado
Mount Pleasant: 8/100 · Sullivan's Island: 77/100
Sullivan's Island is 69 points higher.
Mount Pleasant: Tornado risk derived from NOAA SPC historical reports.
Sullivan's Island: Tornado risk derived from NOAA SPC historical reports.
Hail
Mount Pleasant: 100/100 · Sullivan's Island: 74/100
Mount Pleasant is 26 points higher.
Mount Pleasant: Hail risk derived from NOAA SPC historical reports.
Sullivan's Island: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mount Pleasant: 99/100 · Sullivan's Island: 98/100
Mount Pleasant is 1 points higher.
Mount Pleasant: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Sullivan's Island: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Mount Pleasant: 55/100 · Sullivan's Island: 11/100
Mount Pleasant is 44 points higher.
Mount Pleasant: Wildfire exposure derived from ingested fire potential tiles.
Sullivan's Island: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Mount Pleasant: 26/100 · Sullivan's Island: 26/100
No gap.
Mount Pleasant: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Sullivan's 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.