City vs city
Charleston vs James Island, SC
Charleston and James Island 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
Charleston: 61/100 · James Island: 61/100
No gap.
Flood
Charleston: 89/100 · James Island: 89/100
No gap.
Charleston: FEMA NFHL flood zones: 33 features intersect this tile.
James Island: FEMA NFHL flood zones: 33 features intersect this tile.
Wind
Charleston: 52/100 · James Island: 52/100
No gap.
Charleston: Wind exposure derived from ingested design wind / climatology tiles.
James Island: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Charleston: 45/100 · James Island: 45/100
No gap.
Charleston: Lightning exposure derived from ingested climatology tiles.
James Island: Lightning exposure derived from ingested climatology tiles.
Tornado
Charleston: 65/100 · James Island: 65/100
No gap.
Charleston: Tornado risk derived from NOAA SPC historical reports.
James Island: Tornado risk derived from NOAA SPC historical reports.
Hail
Charleston: 100/100 · James Island: 100/100
No gap.
Charleston: Hail risk derived from NOAA SPC historical reports.
James Island: Hail risk derived from NOAA SPC historical reports.
Storm surge
Charleston: 98/100 · James Island: 98/100
No gap.
Charleston: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
James Island: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Charleston: 15/100 · James Island: 15/100
No gap.
Charleston: Wildfire exposure derived from ingested fire potential tiles.
James Island: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Charleston: 26/100 · James Island: 26/100
No gap.
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.
James 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.