City vs city
Cedar Rapids vs Derby, IA
Cedar Rapids currently scores 9 points higher overall than Derby, 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
Cedar Rapids: 43/100 · Derby: 34/100
Cedar Rapids is 9 points higher.
Flood
Cedar Rapids: 67/100 · Derby: 55/100
Cedar Rapids is 12 points higher.
Cedar Rapids: FEMA NFHL flood zones: 14 features intersect this tile.
Derby: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Cedar Rapids: 17/100 · Derby: 18/100
Derby is 1 points higher.
Cedar Rapids: Wind exposure derived from ingested design wind / climatology tiles.
Derby: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Cedar Rapids: 43/100 · Derby: 64/100
Derby is 21 points higher.
Cedar Rapids: Lightning exposure derived from ingested climatology tiles.
Derby: Lightning exposure derived from ingested climatology tiles.
Tornado
Cedar Rapids: 4/100 · Derby: 4/100
No gap.
Cedar Rapids: Tornado risk derived from NOAA SPC historical reports.
Derby: Tornado risk derived from NOAA SPC historical reports.
Hail
Cedar Rapids: 100/100 · Derby: 29/100
Cedar Rapids is 71 points higher.
Cedar Rapids: Hail risk derived from NOAA SPC historical reports.
Derby: Hail risk derived from NOAA SPC historical reports.
Storm surge
Cedar Rapids: Unavailable · Derby: Unavailable
A score difference cannot be calculated without both sources.
Cedar Rapids: Storm surge model is not available for this location yet.
Derby: Storm surge model is not available for this location yet.
Wildfire
Cedar Rapids: 44/100 · Derby: 34/100
Cedar Rapids is 10 points higher.
Cedar Rapids: Wildfire exposure derived from ingested fire potential tiles.
Derby: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Cedar Rapids: 26/100 · Derby: 31/100
Derby is 5 points higher.
Cedar Rapids: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Derby: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.