City vs city
Iowa City vs Manchester, IA
Iowa City currently scores 8 points higher overall than Manchester, 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 · Manchester: 40/100
Iowa City is 8 points higher.
Flood
Iowa City: 64/100 · Manchester: 60/100
Iowa City is 4 points higher.
Iowa City: FEMA NFHL flood zones: 13 features intersect this tile.
Manchester: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Iowa City: 17/100 · Manchester: 17/100
No gap.
Iowa City: Wind exposure derived from ingested design wind / climatology tiles.
Manchester: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Iowa City: 47/100 · Manchester: 29/100
Iowa City is 18 points higher.
Iowa City: Lightning exposure derived from ingested climatology tiles.
Manchester: Lightning exposure derived from ingested climatology tiles.
Tornado
Iowa City: 38/100 · Manchester: 50/100
Manchester is 12 points higher.
Iowa City: Tornado risk derived from NOAA SPC historical reports.
Manchester: Tornado risk derived from NOAA SPC historical reports.
Hail
Iowa City: 100/100 · Manchester: 66/100
Iowa City is 34 points higher.
Iowa City: Hail risk derived from NOAA SPC historical reports.
Manchester: Hail risk derived from NOAA SPC historical reports.
Storm surge
Iowa City: Unavailable · Manchester: Unavailable
A score difference cannot be calculated without both sources.
Iowa City: Storm surge model is not available for this location yet.
Manchester: Storm surge model is not available for this location yet.
Wildfire
Iowa City: 43/100 · Manchester: 33/100
Iowa City is 10 points higher.
Iowa City: Wildfire exposure derived from ingested fire potential tiles.
Manchester: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Iowa City: 24/100 · Manchester: 25/100
Manchester is 1 points higher.
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.
Manchester: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.