City vs city
Myrtle Beach vs Port Royal, SC
Myrtle Beach currently scores 9 points higher overall than Port Royal, with the largest gap in flood.
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
Myrtle Beach: 54/100 · Port Royal: 45/100
Myrtle Beach is 9 points higher.
Flood
Myrtle Beach: 26/100 · Port Royal: 92/100
Port Royal is 66 points higher.
Myrtle Beach: FEMA NFHL flood zones: 5 features intersect this tile.
Port Royal: FEMA NFHL flood zones: 18 features intersect this tile.
Wind
Myrtle Beach: 52/100 · Port Royal: 45/100
Myrtle Beach is 7 points higher.
Myrtle Beach: Wind exposure derived from ingested design wind / climatology tiles.
Port Royal: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Myrtle Beach: 59/100 · Port Royal: 61/100
Port Royal is 2 points higher.
Myrtle Beach: Lightning exposure derived from ingested climatology tiles.
Port Royal: Lightning exposure derived from ingested climatology tiles.
Tornado
Myrtle Beach: 35/100 · Port Royal: 4/100
Myrtle Beach is 31 points higher.
Myrtle Beach: Tornado risk derived from NOAA SPC historical reports.
Port Royal: Tornado risk derived from NOAA SPC historical reports.
Hail
Myrtle Beach: 85/100 · Port Royal: 24/100
Myrtle Beach is 61 points higher.
Myrtle Beach: Hail risk derived from NOAA SPC historical reports.
Port Royal: Hail risk derived from NOAA SPC historical reports.
Storm surge
Myrtle Beach: 99/100 · Port Royal: 99/100
No gap.
Myrtle Beach: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Port Royal: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Myrtle Beach: 60/100 · Port Royal: 10/100
Myrtle Beach is 50 points higher.
Myrtle Beach: Wildfire exposure derived from ingested fire potential tiles.
Port Royal: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Myrtle Beach: 19/100 · Port Royal: 21/100
Port Royal is 2 points higher.
Myrtle Beach: 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.