City vs city
Boise vs Lewisville, ID
Boise currently scores 7 points higher overall than Lewisville, with the largest gap in wildfire.
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 is a current EPA AirNow signal; 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
Boise: 22/100 · Lewisville: 15/100
Boise is 7 points higher.
Flood
Boise: 29/100 · Lewisville: 22/100
Boise is 7 points higher.
Boise: FEMA NFHL flood zones: 18 features intersect this tile.
Lewisville: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Boise: 11/100 · Lewisville: 14/100
Lewisville is 3 points higher.
Boise: Wind exposure derived from ingested design wind / climatology tiles.
Lewisville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Boise: 7/100 · Lewisville: 9/100
Lewisville is 2 points higher.
Boise: Lightning exposure derived from ingested climatology tiles.
Lewisville: Lightning exposure derived from ingested climatology tiles.
Tornado
Boise: 8/100 · Lewisville: 8/100
No gap.
Boise: Tornado risk derived from NOAA SPC historical reports.
Lewisville: Tornado risk derived from NOAA SPC historical reports.
Hail
Boise: 25/100 · Lewisville: 3/100
Boise is 22 points higher.
Boise: Hail risk derived from NOAA SPC historical reports.
Lewisville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Boise: Unavailable · Lewisville: Unavailable
A score difference cannot be calculated without both sources.
Boise: Storm surge model is not available for this location yet.
Lewisville: Storm surge model is not available for this location yet.
Wildfire
Boise: 61/100 · Lewisville: 36/100
Boise is 25 points higher.
Boise: Wildfire exposure derived from ingested fire potential tiles.
Lewisville: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Boise: 15/100 · Lewisville: 15/100
No gap.
Boise: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Lewisville: Air quality signal derived from the latest EPA AirNow combined AQI grid.