City vs city
Nampa vs Twin Falls, ID
Twin Falls currently scores 5 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
Nampa: 17/100 · Twin Falls: 22/100
Twin Falls is 5 points higher.
Flood
Nampa: 23/100 · Twin Falls: 21/100
Nampa is 2 points higher.
Nampa: FEMA NFHL flood zones: 6 features intersect this tile.
Twin Falls: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Nampa: 11/100 · Twin Falls: 12/100
Twin Falls is 1 points higher.
Nampa: Wind exposure derived from ingested design wind / climatology tiles.
Twin Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Nampa: 7/100 · Twin Falls: 11/100
Twin Falls is 4 points higher.
Nampa: Lightning exposure derived from ingested climatology tiles.
Twin Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Nampa: 8/100 · Twin Falls: 8/100
No gap.
Nampa: Tornado risk derived from NOAA SPC historical reports.
Twin Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Nampa: 20/100 · Twin Falls: 37/100
Twin Falls is 17 points higher.
Nampa: Hail risk derived from NOAA SPC historical reports.
Twin Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Nampa: Unavailable · Twin Falls: Unavailable
A score difference cannot be calculated without both sources.
Nampa: Storm surge model is not available for this location yet.
Twin Falls: Storm surge model is not available for this location yet.
Wildfire
Nampa: 42/100 · Twin Falls: 45/100
Twin Falls is 3 points higher.
Nampa: Wildfire exposure derived from ingested fire potential tiles.
Twin Falls: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Nampa: 11/100 · Twin Falls: 18/100
Twin Falls is 7 points higher.
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.
Twin Falls: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.