City vs city
Decorah vs Iowa City, IA
Iowa City currently scores 24 points higher overall than Decorah, 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
Decorah: 24/100 · Iowa City: 48/100
Iowa City is 24 points higher.
Flood
Decorah: 45/100 · Iowa City: 64/100
Iowa City is 19 points higher.
Decorah: FEMA NFHL flood zones: 5 features intersect this tile.
Iowa City: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Decorah: 17/100 · Iowa City: 17/100
No gap.
Decorah: Wind exposure derived from ingested design wind / climatology tiles.
Iowa City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Decorah: 15/100 · Iowa City: 47/100
Iowa City is 32 points higher.
Decorah: Lightning exposure derived from ingested climatology tiles.
Iowa City: Lightning exposure derived from ingested climatology tiles.
Tornado
Decorah: 4/100 · Iowa City: 38/100
Iowa City is 34 points higher.
Decorah: Tornado risk derived from NOAA SPC historical reports.
Iowa City: Tornado risk derived from NOAA SPC historical reports.
Hail
Decorah: 36/100 · Iowa City: 100/100
Iowa City is 64 points higher.
Decorah: Hail risk derived from NOAA SPC historical reports.
Iowa City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Decorah: Unavailable · Iowa City: Unavailable
A score difference cannot be calculated without both sources.
Decorah: Storm surge model is not available for this location yet.
Iowa City: Storm surge model is not available for this location yet.
Wildfire
Decorah: 36/100 · Iowa City: 43/100
Iowa City is 7 points higher.
Decorah: Wildfire exposure derived from ingested fire potential tiles.
Iowa City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Decorah: 16/100 · Iowa City: 24/100
Iowa City is 8 points higher.
Decorah: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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.