City vs city
Greenville vs Port Royal, SC
Greenville currently scores 1 points higher overall than Port Royal, 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
Greenville: 46/100 · Port Royal: 45/100
Greenville is 1 points higher.
Flood
Greenville: 24/100 · Port Royal: 92/100
Port Royal is 68 points higher.
Greenville: FEMA NFHL flood zones: 3 features intersect this tile.
Port Royal: FEMA NFHL flood zones: 18 features intersect this tile.
Wind
Greenville: 17/100 · Port Royal: 45/100
Port Royal is 28 points higher.
Greenville: Wind exposure derived from ingested design wind / climatology tiles.
Port Royal: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Greenville: 46/100 · Port Royal: 61/100
Port Royal is 15 points higher.
Greenville: Lightning exposure derived from ingested climatology tiles.
Port Royal: Lightning exposure derived from ingested climatology tiles.
Tornado
Greenville: 38/100 · Port Royal: 4/100
Greenville is 34 points higher.
Greenville: Tornado risk derived from NOAA SPC historical reports.
Port Royal: Tornado risk derived from NOAA SPC historical reports.
Hail
Greenville: 100/100 · Port Royal: 24/100
Greenville is 76 points higher.
Greenville: Hail risk derived from NOAA SPC historical reports.
Port Royal: Hail risk derived from NOAA SPC historical reports.
Storm surge
Greenville: Unavailable · Port Royal: 99/100
A score difference cannot be calculated without both sources.
Greenville: Storm surge model is not available for this location yet.
Port Royal: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Greenville: 66/100 · Port Royal: 10/100
Greenville is 56 points higher.
Greenville: Wildfire exposure derived from ingested fire potential tiles.
Port Royal: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Greenville: 28/100 · Port Royal: 21/100
Greenville is 7 points higher.
Greenville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Port Royal: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.