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