City vs city
Iowa City vs Mount Vernon, IA
Iowa City currently scores 13 points higher overall than Mount Vernon, 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 · Mount Vernon: 35/100
Iowa City is 13 points higher.
Flood
Iowa City: 64/100 · Mount Vernon: 45/100
Iowa City is 19 points higher.
Iowa City: FEMA NFHL flood zones: 13 features intersect this tile.
Mount Vernon: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Iowa City: 17/100 · Mount Vernon: 17/100
No gap.
Iowa City: Wind exposure derived from ingested design wind / climatology tiles.
Mount Vernon: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Iowa City: 47/100 · Mount Vernon: 43/100
Iowa City is 4 points higher.
Iowa City: Lightning exposure derived from ingested climatology tiles.
Mount Vernon: Lightning exposure derived from ingested climatology tiles.
Tornado
Iowa City: 38/100 · Mount Vernon: 8/100
Iowa City is 30 points higher.
Iowa City: Tornado risk derived from NOAA SPC historical reports.
Mount Vernon: Tornado risk derived from NOAA SPC historical reports.
Hail
Iowa City: 100/100 · Mount Vernon: 63/100
Iowa City is 37 points higher.
Iowa City: Hail risk derived from NOAA SPC historical reports.
Mount Vernon: Hail risk derived from NOAA SPC historical reports.
Storm surge
Iowa City: Unavailable · Mount Vernon: Unavailable
A score difference cannot be calculated without both sources.
Iowa City: Storm surge model is not available for this location yet.
Mount Vernon: Storm surge model is not available for this location yet.
Wildfire
Iowa City: 43/100 · Mount Vernon: 41/100
Iowa City is 2 points higher.
Iowa City: Wildfire exposure derived from ingested fire potential tiles.
Mount Vernon: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Iowa City: 24/100 · Mount Vernon: 26/100
Mount Vernon is 2 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.
Mount Vernon: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.