City vs city
Harbor Island vs Mauldin, SC
Harbor Island and Mauldin are tied on overall score, with the biggest factor difference 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
Harbor Island: 47/100 · Mauldin: 47/100
No gap.
Flood
Harbor Island: 85/100 · Mauldin: 27/100
Harbor Island is 58 points higher.
Harbor Island: FEMA NFHL flood zones: 13 features intersect this tile.
Mauldin: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Harbor Island: 49/100 · Mauldin: 17/100
Harbor Island is 32 points higher.
Harbor Island: Wind exposure derived from ingested design wind / climatology tiles.
Mauldin: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harbor Island: 52/100 · Mauldin: 46/100
Harbor Island is 6 points higher.
Harbor Island: Lightning exposure derived from ingested climatology tiles.
Mauldin: Lightning exposure derived from ingested climatology tiles.
Tornado
Harbor Island: 0/100 · Mauldin: 0/100
No gap.
Harbor Island: Tornado risk derived from NOAA SPC historical reports.
Mauldin: Tornado risk derived from NOAA SPC historical reports.
Hail
Harbor Island: 4/100 · Mauldin: 100/100
Mauldin is 96 points higher.
Harbor Island: Hail risk derived from NOAA SPC historical reports.
Mauldin: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harbor Island: 98/100 · Mauldin: Unavailable
A score difference cannot be calculated without both sources.
Harbor Island: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Mauldin: Storm surge model is not available for this location yet.
Wildfire
Harbor Island: 16/100 · Mauldin: 65/100
Mauldin is 49 points higher.
Harbor Island: Wildfire exposure derived from ingested fire potential tiles.
Mauldin: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Harbor Island: 24/100 · Mauldin: 28/100
Mauldin is 4 points higher.
Harbor Island: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Mauldin: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.