City vs city
Ottumwa vs Waterloo, IA
Ottumwa and Waterloo are tied on overall score, with the biggest factor difference in lightning.
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
Ottumwa: 41/100 · Waterloo: 41/100
No gap.
Flood
Ottumwa: 57/100 · Waterloo: 66/100
Waterloo is 9 points higher.
Ottumwa: FEMA NFHL flood zones: 8 features intersect this tile.
Waterloo: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Ottumwa: 17/100 · Waterloo: 18/100
Waterloo is 1 points higher.
Ottumwa: Wind exposure derived from ingested design wind / climatology tiles.
Waterloo: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ottumwa: 54/100 · Waterloo: 30/100
Ottumwa is 24 points higher.
Ottumwa: Lightning exposure derived from ingested climatology tiles.
Waterloo: Lightning exposure derived from ingested climatology tiles.
Tornado
Ottumwa: 8/100 · Waterloo: 15/100
Waterloo is 7 points higher.
Ottumwa: Tornado risk derived from NOAA SPC historical reports.
Waterloo: Tornado risk derived from NOAA SPC historical reports.
Hail
Ottumwa: 89/100 · Waterloo: 100/100
Waterloo is 11 points higher.
Ottumwa: Hail risk derived from NOAA SPC historical reports.
Waterloo: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ottumwa: Unavailable · Waterloo: Unavailable
A score difference cannot be calculated without both sources.
Ottumwa: Storm surge model is not available for this location yet.
Waterloo: Storm surge model is not available for this location yet.
Wildfire
Ottumwa: 38/100 · Waterloo: 34/100
Ottumwa is 4 points higher.
Ottumwa: Wildfire exposure derived from ingested fire potential tiles.
Waterloo: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Ottumwa: 21/100 · Waterloo: 21/100
No gap.
Ottumwa: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Waterloo: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.