City vs city
Ankeny vs Harper, IA
Ankeny currently scores 17 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
Ankeny: 50/100 · Harper: 33/100
Ankeny is 17 points higher.
Flood
Ankeny: 57/100 · Harper: 52/100
Ankeny is 5 points higher.
Ankeny: FEMA NFHL flood zones: 4 features intersect this tile.
Harper: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Ankeny: 18/100 · Harper: 17/100
Ankeny is 1 points higher.
Ankeny: Wind exposure derived from ingested design wind / climatology tiles.
Harper: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ankeny: 58/100 · Harper: 45/100
Ankeny is 13 points higher.
Ankeny: Lightning exposure derived from ingested climatology tiles.
Harper: Lightning exposure derived from ingested climatology tiles.
Tornado
Ankeny: 62/100 · Harper: 46/100
Ankeny is 16 points higher.
Ankeny: Tornado risk derived from NOAA SPC historical reports.
Harper: Tornado risk derived from NOAA SPC historical reports.
Hail
Ankeny: 100/100 · Harper: 4/100
Ankeny is 96 points higher.
Ankeny: Hail risk derived from NOAA SPC historical reports.
Harper: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ankeny: Unavailable · Harper: Unavailable
A score difference cannot be calculated without both sources.
Ankeny: Storm surge model is not available for this location yet.
Harper: Storm surge model is not available for this location yet.
Wildfire
Ankeny: 28/100 · Harper: 40/100
Harper is 12 points higher.
Ankeny: Wildfire exposure derived from ingested fire potential tiles.
Harper: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Ankeny: 28/100 · Harper: 24/100
Ankeny is 4 points higher.
Ankeny: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Harper: Air quality signal derived from the latest EPA AirNow combined AQI grid.