City vs city
Barnwell vs Rock Hill, SC
Rock Hill currently scores 1 points higher overall than Barnwell, 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 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
Barnwell: 41/100 · Rock Hill: 42/100
Rock Hill is 1 points higher.
Flood
Barnwell: 35/100 · Rock Hill: 33/100
Barnwell is 2 points higher.
Barnwell: FEMA NFHL flood zones: 12 features intersect this tile.
Rock Hill: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Barnwell: 26/100 · Rock Hill: 19/100
Barnwell is 7 points higher.
Barnwell: Wind exposure derived from ingested design wind / climatology tiles.
Rock Hill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Barnwell: 69/100 · Rock Hill: 46/100
Barnwell is 23 points higher.
Barnwell: Lightning exposure derived from ingested climatology tiles.
Rock Hill: Lightning exposure derived from ingested climatology tiles.
Tornado
Barnwell: 12/100 · Rock Hill: 19/100
Rock Hill is 7 points higher.
Barnwell: Tornado risk derived from NOAA SPC historical reports.
Rock Hill: Tornado risk derived from NOAA SPC historical reports.
Hail
Barnwell: 53/100 · Rock Hill: 100/100
Rock Hill is 47 points higher.
Barnwell: Hail risk derived from NOAA SPC historical reports.
Rock Hill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Barnwell: Unavailable · Rock Hill: Unavailable
A score difference cannot be calculated without both sources.
Barnwell: Storm surge model is not available for this location yet.
Rock Hill: Storm surge model is not available for this location yet.
Wildfire
Barnwell: 69/100 · Rock Hill: 52/100
Barnwell is 17 points higher.
Barnwell: Wildfire exposure derived from ingested fire potential tiles.
Rock Hill: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Barnwell: 26/100 · Rock Hill: 24/100
Barnwell is 2 points higher.
Barnwell: 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.