City vs city
Iowa City vs Sigourney, IA
Iowa City currently scores 14 points higher overall than Sigourney, 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
Iowa City: 48/100 · Sigourney: 34/100
Iowa City is 14 points higher.
Flood
Iowa City: 64/100 · Sigourney: 66/100
Sigourney is 2 points higher.
Iowa City: FEMA NFHL flood zones: 13 features intersect this tile.
Sigourney: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Iowa City: 17/100 · Sigourney: 17/100
No gap.
Iowa City: Wind exposure derived from ingested design wind / climatology tiles.
Sigourney: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Iowa City: 47/100 · Sigourney: 49/100
Sigourney is 2 points higher.
Iowa City: Lightning exposure derived from ingested climatology tiles.
Sigourney: Lightning exposure derived from ingested climatology tiles.
Tornado
Iowa City: 38/100 · Sigourney: 8/100
Iowa City is 30 points higher.
Iowa City: Tornado risk derived from NOAA SPC historical reports.
Sigourney: Tornado risk derived from NOAA SPC historical reports.
Hail
Iowa City: 100/100 · Sigourney: 40/100
Iowa City is 60 points higher.
Iowa City: Hail risk derived from NOAA SPC historical reports.
Sigourney: Hail risk derived from NOAA SPC historical reports.
Storm surge
Iowa City: Unavailable · Sigourney: Unavailable
A score difference cannot be calculated without both sources.
Iowa City: Storm surge model is not available for this location yet.
Sigourney: Storm surge model is not available for this location yet.
Wildfire
Iowa City: 43/100 · Sigourney: 32/100
Iowa City is 11 points higher.
Iowa City: Wildfire exposure derived from ingested fire potential tiles.
Sigourney: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Iowa City: 24/100 · Sigourney: 24/100
No gap.
Iowa 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.
Sigourney: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.