City vs city
Greenville vs Irmo, SC
Greenville currently scores 4 points higher overall than Irmo, 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
Greenville: 46/100 · Irmo: 42/100
Greenville is 4 points higher.
Flood
Greenville: 24/100 · Irmo: 38/100
Irmo is 14 points higher.
Greenville: FEMA NFHL flood zones: 3 features intersect this tile.
Irmo: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Greenville: 17/100 · Irmo: 22/100
Irmo is 5 points higher.
Greenville: Wind exposure derived from ingested design wind / climatology tiles.
Irmo: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Greenville: 46/100 · Irmo: 69/100
Irmo is 23 points higher.
Greenville: Lightning exposure derived from ingested climatology tiles.
Irmo: Lightning exposure derived from ingested climatology tiles.
Tornado
Greenville: 38/100 · Irmo: 19/100
Greenville is 19 points higher.
Greenville: Tornado risk derived from NOAA SPC historical reports.
Irmo: Tornado risk derived from NOAA SPC historical reports.
Hail
Greenville: 100/100 · Irmo: 49/100
Greenville is 51 points higher.
Greenville: Hail risk derived from NOAA SPC historical reports.
Irmo: Hail risk derived from NOAA SPC historical reports.
Storm surge
Greenville: Unavailable · Irmo: Unavailable
A score difference cannot be calculated without both sources.
Greenville: Storm surge model is not available for this location yet.
Irmo: Storm surge model is not available for this location yet.
Wildfire
Greenville: 66/100 · Irmo: 68/100
Irmo is 2 points higher.
Greenville: Wildfire exposure derived from ingested fire potential tiles.
Irmo: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Greenville: 28/100 · Irmo: 27/100
Greenville is 1 points higher.
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.
Irmo: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.