City vs city
Irmo vs Winnsboro, SC
Irmo currently scores 3 points higher overall than Winnsboro, with the largest gap 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
Irmo: 42/100 · Winnsboro: 39/100
Irmo is 3 points higher.
Flood
Irmo: 38/100 · Winnsboro: 22/100
Irmo is 16 points higher.
Irmo: FEMA NFHL flood zones: 10 features intersect this tile.
Winnsboro: FEMA NFHL flood zones: 1 features intersect this tile.
Wind
Irmo: 22/100 · Winnsboro: 22/100
No gap.
Irmo: Wind exposure derived from ingested design wind / climatology tiles.
Winnsboro: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Irmo: 69/100 · Winnsboro: 63/100
Irmo is 6 points higher.
Irmo: Lightning exposure derived from ingested climatology tiles.
Winnsboro: Lightning exposure derived from ingested climatology tiles.
Tornado
Irmo: 19/100 · Winnsboro: 15/100
Irmo is 4 points higher.
Irmo: Tornado risk derived from NOAA SPC historical reports.
Winnsboro: Tornado risk derived from NOAA SPC historical reports.
Hail
Irmo: 49/100 · Winnsboro: 64/100
Winnsboro is 15 points higher.
Irmo: Hail risk derived from NOAA SPC historical reports.
Winnsboro: Hail risk derived from NOAA SPC historical reports.
Storm surge
Irmo: Unavailable · Winnsboro: Unavailable
A score difference cannot be calculated without both sources.
Irmo: Storm surge model is not available for this location yet.
Winnsboro: Storm surge model is not available for this location yet.
Wildfire
Irmo: 68/100 · Winnsboro: 64/100
Irmo is 4 points higher.
Irmo: Wildfire exposure derived from ingested fire potential tiles.
Winnsboro: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Irmo: 27/100 · Winnsboro: 26/100
Irmo is 1 points higher.
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.
Winnsboro: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.