City vs city
Mount Pleasant vs Rock Hill, SC
Mount Pleasant currently scores 15 points higher overall than Rock Hill, 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
Mount Pleasant: 57/100 · Rock Hill: 42/100
Mount Pleasant is 15 points higher.
Flood
Mount Pleasant: 72/100 · Rock Hill: 33/100
Mount Pleasant is 39 points higher.
Mount Pleasant: FEMA NFHL flood zones: 25 features intersect this tile.
Rock Hill: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Mount Pleasant: 52/100 · Rock Hill: 19/100
Mount Pleasant is 33 points higher.
Mount Pleasant: Wind exposure derived from ingested design wind / climatology tiles.
Rock Hill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mount Pleasant: 46/100 · Rock Hill: 46/100
No gap.
Mount Pleasant: Lightning exposure derived from ingested climatology tiles.
Rock Hill: Lightning exposure derived from ingested climatology tiles.
Tornado
Mount Pleasant: 8/100 · Rock Hill: 19/100
Rock Hill is 11 points higher.
Mount Pleasant: Tornado risk derived from NOAA SPC historical reports.
Rock Hill: Tornado risk derived from NOAA SPC historical reports.
Hail
Mount Pleasant: 100/100 · Rock Hill: 100/100
No gap.
Mount Pleasant: Hail risk derived from NOAA SPC historical reports.
Rock Hill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mount Pleasant: 99/100 · Rock Hill: Unavailable
A score difference cannot be calculated without both sources.
Mount Pleasant: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Rock Hill: Storm surge model is not available for this location yet.
Wildfire
Mount Pleasant: 55/100 · Rock Hill: 52/100
Mount Pleasant is 3 points higher.
Mount Pleasant: Wildfire exposure derived from ingested fire potential tiles.
Rock Hill: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Mount Pleasant: 26/100 · Rock Hill: 24/100
Mount Pleasant is 2 points higher.
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.
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.