City vs city
Sioux City vs West Des Moines, IA
West Des Moines currently scores 14 points higher overall than Sioux City, 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 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
Sioux City: 39/100 · West Des Moines: 53/100
West Des Moines is 14 points higher.
Flood
Sioux City: 4/100 · West Des Moines: 100/100
West Des Moines is 96 points higher.
Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
West Des Moines: FEMA NFHL flood zones: 27 features intersect this tile.
Wind
Sioux City: 20/100 · West Des Moines: 18/100
Sioux City is 2 points higher.
Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
West Des Moines: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sioux City: 52/100 · West Des Moines: 58/100
West Des Moines is 6 points higher.
Sioux City: Lightning exposure derived from ingested climatology tiles.
West Des Moines: Lightning exposure derived from ingested climatology tiles.
Tornado
Sioux City: 38/100 · West Des Moines: 31/100
Sioux City is 7 points higher.
Sioux City: Tornado risk derived from NOAA SPC historical reports.
West Des Moines: Tornado risk derived from NOAA SPC historical reports.
Hail
Sioux City: 86/100 · West Des Moines: 100/100
West Des Moines is 14 points higher.
Sioux City: Hail risk derived from NOAA SPC historical reports.
West Des Moines: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sioux City: Unavailable · West Des Moines: Unavailable
A score difference cannot be calculated without both sources.
Sioux City: Storm surge model is not available for this location yet.
West Des Moines: Storm surge model is not available for this location yet.
Wildfire
Sioux City: 48/100 · West Des Moines: 30/100
Sioux City is 18 points higher.
Sioux City: Wildfire exposure derived from ingested fire potential tiles.
West Des Moines: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Sioux City: 26/100 · West Des Moines: 31/100
West Des Moines is 5 points higher.
Sioux City: Air quality signal derived from the latest EPA AirNow combined AQI grid.
West Des Moines: Air quality signal derived from the latest EPA AirNow combined AQI grid.