City vs city
Ketchum vs Nampa, ID
Ketchum currently scores 3 points higher overall than Nampa, 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
Ketchum: 20/100 · Nampa: 17/100
Ketchum is 3 points higher.
Flood
Ketchum: 24/100 · Nampa: 23/100
Ketchum is 1 points higher.
Ketchum: FEMA NFHL flood zones: 7 features intersect this tile.
Nampa: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Ketchum: 12/100 · Nampa: 11/100
Ketchum is 1 points higher.
Ketchum: Wind exposure derived from ingested design wind / climatology tiles.
Nampa: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ketchum: 8/100 · Nampa: 7/100
Ketchum is 1 points higher.
Ketchum: Lightning exposure derived from ingested climatology tiles.
Nampa: Lightning exposure derived from ingested climatology tiles.
Tornado
Ketchum: 0/100 · Nampa: 8/100
Nampa is 8 points higher.
Ketchum: Tornado risk derived from NOAA SPC historical reports.
Nampa: Tornado risk derived from NOAA SPC historical reports.
Hail
Ketchum: 9/100 · Nampa: 20/100
Nampa is 11 points higher.
Ketchum: Hail risk derived from NOAA SPC historical reports.
Nampa: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ketchum: Unavailable · Nampa: Unavailable
A score difference cannot be calculated without both sources.
Ketchum: Storm surge model is not available for this location yet.
Nampa: Storm surge model is not available for this location yet.
Wildfire
Ketchum: 48/100 · Nampa: 42/100
Ketchum is 6 points higher.
Ketchum: Wildfire exposure derived from ingested fire potential tiles.
Nampa: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Ketchum: 21/100 · Nampa: 11/100
Ketchum is 10 points higher.
Ketchum: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Nampa: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.