City vs city
Sumner vs Waterloo, IA
Waterloo currently scores 2 points higher overall than Sumner, with the largest gap in tornado.
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
Sumner: 39/100 · Waterloo: 41/100
Waterloo is 2 points higher.
Flood
Sumner: 52/100 · Waterloo: 66/100
Waterloo is 14 points higher.
Sumner: FEMA NFHL flood zones: 10 features intersect this tile.
Waterloo: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Sumner: 17/100 · Waterloo: 18/100
Waterloo is 1 points higher.
Sumner: Wind exposure derived from ingested design wind / climatology tiles.
Waterloo: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sumner: 22/100 · Waterloo: 30/100
Waterloo is 8 points higher.
Sumner: Lightning exposure derived from ingested climatology tiles.
Waterloo: Lightning exposure derived from ingested climatology tiles.
Tornado
Sumner: 73/100 · Waterloo: 15/100
Sumner is 58 points higher.
Sumner: Tornado risk derived from NOAA SPC historical reports.
Waterloo: Tornado risk derived from NOAA SPC historical reports.
Hail
Sumner: 53/100 · Waterloo: 100/100
Waterloo is 47 points higher.
Sumner: Hail risk derived from NOAA SPC historical reports.
Waterloo: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sumner: Unavailable · Waterloo: Unavailable
A score difference cannot be calculated without both sources.
Sumner: Storm surge model is not available for this location yet.
Waterloo: Storm surge model is not available for this location yet.
Wildfire
Sumner: 33/100 · Waterloo: 34/100
Waterloo is 1 points higher.
Sumner: Wildfire exposure derived from ingested fire potential tiles.
Waterloo: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Sumner: 21/100 · Waterloo: 21/100
No gap.
Sumner: 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.