City vs city
Dalzell vs Rock Hill, SC
Rock Hill currently scores 3 points higher overall than Dalzell, with the largest gap 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
Dalzell: 39/100 · Rock Hill: 42/100
Rock Hill is 3 points higher.
Flood
Dalzell: 27/100 · Rock Hill: 33/100
Rock Hill is 6 points higher.
Dalzell: FEMA NFHL flood zones: 4 features intersect this tile.
Rock Hill: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Dalzell: 27/100 · Rock Hill: 19/100
Dalzell is 8 points higher.
Dalzell: Wind exposure derived from ingested design wind / climatology tiles.
Rock Hill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Dalzell: 70/100 · Rock Hill: 46/100
Dalzell is 24 points higher.
Dalzell: Lightning exposure derived from ingested climatology tiles.
Rock Hill: Lightning exposure derived from ingested climatology tiles.
Tornado
Dalzell: 12/100 · Rock Hill: 19/100
Rock Hill is 7 points higher.
Dalzell: Tornado risk derived from NOAA SPC historical reports.
Rock Hill: Tornado risk derived from NOAA SPC historical reports.
Hail
Dalzell: 37/100 · Rock Hill: 100/100
Rock Hill is 63 points higher.
Dalzell: Hail risk derived from NOAA SPC historical reports.
Rock Hill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Dalzell: Unavailable · Rock Hill: Unavailable
A score difference cannot be calculated without both sources.
Dalzell: Storm surge model is not available for this location yet.
Rock Hill: Storm surge model is not available for this location yet.
Wildfire
Dalzell: 75/100 · Rock Hill: 52/100
Dalzell is 23 points higher.
Dalzell: Wildfire exposure derived from ingested fire potential tiles.
Rock Hill: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Dalzell: 26/100 · Rock Hill: 24/100
Dalzell is 2 points higher.
Dalzell: 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.