City vs city
Duncan vs Greenville, SC
Greenville currently scores 4 points higher overall than Duncan, with the largest gap in tornado.
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
Duncan: 42/100 · Greenville: 46/100
Greenville is 4 points higher.
Flood
Duncan: 43/100 · Greenville: 24/100
Duncan is 19 points higher.
Duncan: FEMA NFHL flood zones: 22 features intersect this tile.
Greenville: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Duncan: 17/100 · Greenville: 17/100
No gap.
Duncan: Wind exposure derived from ingested design wind / climatology tiles.
Greenville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Duncan: 46/100 · Greenville: 46/100
No gap.
Duncan: Lightning exposure derived from ingested climatology tiles.
Greenville: Lightning exposure derived from ingested climatology tiles.
Tornado
Duncan: 8/100 · Greenville: 38/100
Greenville is 30 points higher.
Duncan: Tornado risk derived from NOAA SPC historical reports.
Greenville: Tornado risk derived from NOAA SPC historical reports.
Hail
Duncan: 100/100 · Greenville: 100/100
No gap.
Duncan: Hail risk derived from NOAA SPC historical reports.
Greenville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Duncan: Unavailable · Greenville: Unavailable
A score difference cannot be calculated without both sources.
Duncan: Storm surge model is not available for this location yet.
Greenville: Storm surge model is not available for this location yet.
Wildfire
Duncan: 44/100 · Greenville: 66/100
Greenville is 22 points higher.
Duncan: Wildfire exposure derived from ingested fire potential tiles.
Greenville: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Duncan: 35/100 · Greenville: 28/100
Duncan is 7 points higher.
Duncan: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Greenville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.