City vs city
Sergeant Bluff vs Sioux City, IA
Sergeant Bluff currently scores 2 points higher overall than Sioux City, 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
Sergeant Bluff: 41/100 · Sioux City: 39/100
Sergeant Bluff is 2 points higher.
Flood
Sergeant Bluff: 8/100 · Sioux City: 4/100
Sergeant Bluff is 4 points higher.
Sergeant Bluff: FEMA NFHL flood zones: 3 features intersect this tile.
Sioux City: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Sergeant Bluff: 20/100 · Sioux City: 20/100
No gap.
Sergeant Bluff: Wind exposure derived from ingested design wind / climatology tiles.
Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sergeant Bluff: 54/100 · Sioux City: 52/100
Sergeant Bluff is 2 points higher.
Sergeant Bluff: Lightning exposure derived from ingested climatology tiles.
Sioux City: Lightning exposure derived from ingested climatology tiles.
Tornado
Sergeant Bluff: 27/100 · Sioux City: 38/100
Sioux City is 11 points higher.
Sergeant Bluff: Tornado risk derived from NOAA SPC historical reports.
Sioux City: Tornado risk derived from NOAA SPC historical reports.
Hail
Sergeant Bluff: 100/100 · Sioux City: 86/100
Sergeant Bluff is 14 points higher.
Sergeant Bluff: Hail risk derived from NOAA SPC historical reports.
Sioux City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sergeant Bluff: Unavailable · Sioux City: Unavailable
A score difference cannot be calculated without both sources.
Sergeant Bluff: Storm surge model is not available for this location yet.
Sioux City: Storm surge model is not available for this location yet.
Wildfire
Sergeant Bluff: 54/100 · Sioux City: 48/100
Sergeant Bluff is 6 points higher.
Sergeant Bluff: Wildfire exposure derived from ingested fire potential tiles.
Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Sergeant Bluff: 26/100 · Sioux City: 26/100
No gap.
Sergeant Bluff: 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.