City vs city
Rock Hill vs St. Andrews, SC
St. Andrews currently scores 5 points higher overall than Rock Hill, with the largest gap in lightning.
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
Rock Hill: 42/100 · St. Andrews: 47/100
St. Andrews is 5 points higher.
Flood
Rock Hill: 33/100 · St. Andrews: 33/100
No gap.
Rock Hill: FEMA NFHL flood zones: 13 features intersect this tile.
St. Andrews: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Rock Hill: 19/100 · St. Andrews: 23/100
St. Andrews is 4 points higher.
Rock Hill: Wind exposure derived from ingested design wind / climatology tiles.
St. Andrews: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Rock Hill: 46/100 · St. Andrews: 69/100
St. Andrews is 23 points higher.
Rock Hill: Lightning exposure derived from ingested climatology tiles.
St. Andrews: Lightning exposure derived from ingested climatology tiles.
Tornado
Rock Hill: 19/100 · St. Andrews: 8/100
Rock Hill is 11 points higher.
Rock Hill: Tornado risk derived from NOAA SPC historical reports.
St. Andrews: Tornado risk derived from NOAA SPC historical reports.
Hail
Rock Hill: 100/100 · St. Andrews: 100/100
No gap.
Rock Hill: Hail risk derived from NOAA SPC historical reports.
St. Andrews: Hail risk derived from NOAA SPC historical reports.
Storm surge
Rock Hill: Unavailable · St. Andrews: Unavailable
A score difference cannot be calculated without both sources.
Rock Hill: Storm surge model is not available for this location yet.
St. Andrews: Storm surge model is not available for this location yet.
Wildfire
Rock Hill: 52/100 · St. Andrews: 71/100
St. Andrews is 19 points higher.
Rock Hill: Wildfire exposure derived from ingested fire potential tiles.
St. Andrews: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Rock Hill: 24/100 · St. Andrews: 27/100
St. Andrews is 3 points higher.
Rock Hill: Air quality signal derived from the latest EPA AirNow combined AQI grid.
St. Andrews: Air quality signal derived from the latest EPA AirNow combined AQI grid.