City vs city
Mount Ayr vs Sioux City, IA
Mount Ayr currently scores 7 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 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
Mount Ayr: 46/100 · Sioux City: 39/100
Mount Ayr is 7 points higher.
Flood
Mount Ayr: 55/100 · Sioux City: 4/100
Mount Ayr is 51 points higher.
Mount Ayr: FEMA NFHL flood zones: 6 features intersect this tile.
Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Mount Ayr: 18/100 · Sioux City: 20/100
Sioux City is 2 points higher.
Mount Ayr: Wind exposure derived from ingested design wind / climatology tiles.
Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mount Ayr: 63/100 · Sioux City: 52/100
Mount Ayr is 11 points higher.
Mount Ayr: Lightning exposure derived from ingested climatology tiles.
Sioux City: Lightning exposure derived from ingested climatology tiles.
Tornado
Mount Ayr: 19/100 · Sioux City: 38/100
Sioux City is 19 points higher.
Mount Ayr: Tornado risk derived from NOAA SPC historical reports.
Sioux City: Tornado risk derived from NOAA SPC historical reports.
Hail
Mount Ayr: 99/100 · Sioux City: 86/100
Mount Ayr is 13 points higher.
Mount Ayr: Hail risk derived from NOAA SPC historical reports.
Sioux City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mount Ayr: Unavailable · Sioux City: Unavailable
A score difference cannot be calculated without both sources.
Mount Ayr: Storm surge model is not available for this location yet.
Sioux City: Storm surge model is not available for this location yet.
Wildfire
Mount Ayr: 43/100 · Sioux City: 48/100
Sioux City is 5 points higher.
Mount Ayr: Wildfire exposure derived from ingested fire potential tiles.
Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Mount Ayr: 28/100 · Sioux City: 26/100
Mount Ayr is 2 points higher.
Mount Ayr: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Sioux City: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.