City vs city
Port Royal vs Spartanburg, SC
Spartanburg currently scores 4 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
Port Royal: 45/100 · Spartanburg: 49/100
Spartanburg is 4 points higher.
Flood
Port Royal: 92/100 · Spartanburg: 29/100
Port Royal is 63 points higher.
Port Royal: FEMA NFHL flood zones: 18 features intersect this tile.
Spartanburg: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Port Royal: 45/100 · Spartanburg: 17/100
Port Royal is 28 points higher.
Port Royal: Wind exposure derived from ingested design wind / climatology tiles.
Spartanburg: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Port Royal: 61/100 · Spartanburg: 45/100
Port Royal is 16 points higher.
Port Royal: Lightning exposure derived from ingested climatology tiles.
Spartanburg: Lightning exposure derived from ingested climatology tiles.
Tornado
Port Royal: 4/100 · Spartanburg: 50/100
Spartanburg is 46 points higher.
Port Royal: Tornado risk derived from NOAA SPC historical reports.
Spartanburg: Tornado risk derived from NOAA SPC historical reports.
Hail
Port Royal: 24/100 · Spartanburg: 100/100
Spartanburg is 76 points higher.
Port Royal: Hail risk derived from NOAA SPC historical reports.
Spartanburg: Hail risk derived from NOAA SPC historical reports.
Storm surge
Port Royal: 99/100 · Spartanburg: Unavailable
A score difference cannot be calculated without both sources.
Port Royal: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Spartanburg: Storm surge model is not available for this location yet.
Wildfire
Port Royal: 10/100 · Spartanburg: 64/100
Spartanburg is 54 points higher.
Port Royal: Wildfire exposure derived from ingested fire potential tiles.
Spartanburg: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Port Royal: 21/100 · Spartanburg: 36/100
Spartanburg is 15 points higher.
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.
Spartanburg: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.