City vs city
Ridge Spring vs Rock Hill, SC
Ridge Spring currently scores 5 points higher overall than Rock Hill, 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 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
Ridge Spring: 47/100 · Rock Hill: 42/100
Ridge Spring is 5 points higher.
Flood
Ridge Spring: 23/100 · Rock Hill: 33/100
Rock Hill is 10 points higher.
Ridge Spring: FEMA NFHL flood zones: 4 features intersect this tile.
Rock Hill: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Ridge Spring: 21/100 · Rock Hill: 19/100
Ridge Spring is 2 points higher.
Ridge Spring: Wind exposure derived from ingested design wind / climatology tiles.
Rock Hill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ridge Spring: 64/100 · Rock Hill: 46/100
Ridge Spring is 18 points higher.
Ridge Spring: Lightning exposure derived from ingested climatology tiles.
Rock Hill: Lightning exposure derived from ingested climatology tiles.
Tornado
Ridge Spring: 54/100 · Rock Hill: 19/100
Ridge Spring is 35 points higher.
Ridge Spring: Tornado risk derived from NOAA SPC historical reports.
Rock Hill: Tornado risk derived from NOAA SPC historical reports.
Hail
Ridge Spring: 76/100 · Rock Hill: 100/100
Rock Hill is 24 points higher.
Ridge Spring: Hail risk derived from NOAA SPC historical reports.
Rock Hill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ridge Spring: Unavailable · Rock Hill: Unavailable
A score difference cannot be calculated without both sources.
Ridge Spring: Storm surge model is not available for this location yet.
Rock Hill: Storm surge model is not available for this location yet.
Wildfire
Ridge Spring: 62/100 · Rock Hill: 52/100
Ridge Spring is 10 points higher.
Ridge Spring: Wildfire exposure derived from ingested fire potential tiles.
Rock Hill: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Ridge Spring: 26/100 · Rock Hill: 24/100
Ridge Spring is 2 points higher.
Ridge Spring: 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.