City vs city
Hanahan vs North Charleston, SC
Hanahan and North Charleston are tied on overall score, with the biggest factor difference 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
Hanahan: 56/100 · North Charleston: 56/100
No gap.
Flood
Hanahan: 39/100 · North Charleston: 39/100
No gap.
Hanahan: FEMA NFHL flood zones: 13 features intersect this tile.
North Charleston: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Hanahan: 48/100 · North Charleston: 48/100
No gap.
Hanahan: Wind exposure derived from ingested design wind / climatology tiles.
North Charleston: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Hanahan: 56/100 · North Charleston: 56/100
No gap.
Hanahan: Lightning exposure derived from ingested climatology tiles.
North Charleston: Lightning exposure derived from ingested climatology tiles.
Tornado
Hanahan: 27/100 · North Charleston: 27/100
No gap.
Hanahan: Tornado risk derived from NOAA SPC historical reports.
North Charleston: Tornado risk derived from NOAA SPC historical reports.
Hail
Hanahan: 100/100 · North Charleston: 100/100
No gap.
Hanahan: Hail risk derived from NOAA SPC historical reports.
North Charleston: Hail risk derived from NOAA SPC historical reports.
Storm surge
Hanahan: 83/100 · North Charleston: 83/100
No gap.
Hanahan: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
North Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Hanahan: 72/100 · North Charleston: 72/100
No gap.
Hanahan: Wildfire exposure derived from ingested fire potential tiles.
North Charleston: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Hanahan: 26/100 · North Charleston: 26/100
No gap.
Hanahan: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
North Charleston: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.