City vs city
Harper vs Iowa City, IA
Iowa City currently scores 15 points higher overall than Harper, 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 is a current EPA AirNow signal; 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
Harper: 33/100 · Iowa City: 48/100
Iowa City is 15 points higher.
Flood
Harper: 52/100 · Iowa City: 64/100
Iowa City is 12 points higher.
Harper: FEMA NFHL flood zones: 3 features intersect this tile.
Iowa City: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Harper: 17/100 · Iowa City: 17/100
No gap.
Harper: Wind exposure derived from ingested design wind / climatology tiles.
Iowa City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harper: 45/100 · Iowa City: 47/100
Iowa City is 2 points higher.
Harper: Lightning exposure derived from ingested climatology tiles.
Iowa City: Lightning exposure derived from ingested climatology tiles.
Tornado
Harper: 46/100 · Iowa City: 38/100
Harper is 8 points higher.
Harper: Tornado risk derived from NOAA SPC historical reports.
Iowa City: Tornado risk derived from NOAA SPC historical reports.
Hail
Harper: 4/100 · Iowa City: 100/100
Iowa City is 96 points higher.
Harper: Hail risk derived from NOAA SPC historical reports.
Iowa City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harper: Unavailable · Iowa City: Unavailable
A score difference cannot be calculated without both sources.
Harper: Storm surge model is not available for this location yet.
Iowa City: Storm surge model is not available for this location yet.
Wildfire
Harper: 40/100 · Iowa City: 43/100
Iowa City is 3 points higher.
Harper: Wildfire exposure derived from ingested fire potential tiles.
Iowa City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Harper: 24/100 · Iowa City: 24/100
No gap.
Harper: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Iowa City: Air quality signal derived from the latest EPA AirNow combined AQI grid.