City vs city
Sioux City vs Spirit Lake, IA
Spirit Lake currently scores 3 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
Sioux City: 39/100 · Spirit Lake: 42/100
Spirit Lake is 3 points higher.
Flood
Sioux City: 4/100 · Spirit Lake: 73/100
Spirit Lake is 69 points higher.
Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
Spirit Lake: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Sioux City: 20/100 · Spirit Lake: 19/100
Sioux City is 1 points higher.
Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Spirit Lake: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sioux City: 52/100 · Spirit Lake: 51/100
Sioux City is 1 points higher.
Sioux City: Lightning exposure derived from ingested climatology tiles.
Spirit Lake: Lightning exposure derived from ingested climatology tiles.
Tornado
Sioux City: 38/100 · Spirit Lake: 23/100
Sioux City is 15 points higher.
Sioux City: Tornado risk derived from NOAA SPC historical reports.
Spirit Lake: Tornado risk derived from NOAA SPC historical reports.
Hail
Sioux City: 86/100 · Spirit Lake: 67/100
Sioux City is 19 points higher.
Sioux City: Hail risk derived from NOAA SPC historical reports.
Spirit Lake: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sioux City: Unavailable · Spirit Lake: Unavailable
A score difference cannot be calculated without both sources.
Sioux City: Storm surge model is not available for this location yet.
Spirit Lake: Storm surge model is not available for this location yet.
Wildfire
Sioux City: 48/100 · Spirit Lake: 40/100
Sioux City is 8 points higher.
Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Spirit Lake: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Sioux City: 26/100 · Spirit Lake: 18/100
Sioux City is 8 points higher.
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.
Spirit Lake: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.