City vs city
Rock Hill vs South Sumter, SC
Rock Hill and South Sumter are tied on overall score, with the biggest factor difference in hail.
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
Rock Hill: 42/100 · South Sumter: 42/100
No gap.
Flood
Rock Hill: 33/100 · South Sumter: 34/100
South Sumter is 1 points higher.
Rock Hill: FEMA NFHL flood zones: 13 features intersect this tile.
South Sumter: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Rock Hill: 19/100 · South Sumter: 31/100
South Sumter is 12 points higher.
Rock Hill: Wind exposure derived from ingested design wind / climatology tiles.
South Sumter: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Rock Hill: 46/100 · South Sumter: 74/100
South Sumter is 28 points higher.
Rock Hill: Lightning exposure derived from ingested climatology tiles.
South Sumter: Lightning exposure derived from ingested climatology tiles.
Tornado
Rock Hill: 19/100 · South Sumter: 15/100
Rock Hill is 4 points higher.
Rock Hill: Tornado risk derived from NOAA SPC historical reports.
South Sumter: Tornado risk derived from NOAA SPC historical reports.
Hail
Rock Hill: 100/100 · South Sumter: 49/100
Rock Hill is 51 points higher.
Rock Hill: Hail risk derived from NOAA SPC historical reports.
South Sumter: Hail risk derived from NOAA SPC historical reports.
Storm surge
Rock Hill: Unavailable · South Sumter: Unavailable
A score difference cannot be calculated without both sources.
Rock Hill: Storm surge model is not available for this location yet.
South Sumter: Storm surge model is not available for this location yet.
Wildfire
Rock Hill: 52/100 · South Sumter: 67/100
South Sumter is 15 points higher.
Rock Hill: Wildfire exposure derived from ingested fire potential tiles.
South Sumter: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Rock Hill: 24/100 · South Sumter: 26/100
South Sumter is 2 points higher.
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.
South Sumter: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.