City vs city
Cedar Rapids vs Rock Valley, IA
Rock Valley currently scores 4 points higher overall than Cedar Rapids, 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
Cedar Rapids: 43/100 · Rock Valley: 47/100
Rock Valley is 4 points higher.
Flood
Cedar Rapids: 67/100 · Rock Valley: 67/100
No gap.
Cedar Rapids: FEMA NFHL flood zones: 14 features intersect this tile.
Rock Valley: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Cedar Rapids: 17/100 · Rock Valley: 20/100
Rock Valley is 3 points higher.
Cedar Rapids: Wind exposure derived from ingested design wind / climatology tiles.
Rock Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Cedar Rapids: 43/100 · Rock Valley: 48/100
Rock Valley is 5 points higher.
Cedar Rapids: Lightning exposure derived from ingested climatology tiles.
Rock Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Cedar Rapids: 4/100 · Rock Valley: 35/100
Rock Valley is 31 points higher.
Cedar Rapids: Tornado risk derived from NOAA SPC historical reports.
Rock Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Cedar Rapids: 100/100 · Rock Valley: 100/100
No gap.
Cedar Rapids: Hail risk derived from NOAA SPC historical reports.
Rock Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Cedar Rapids: Unavailable · Rock Valley: Unavailable
A score difference cannot be calculated without both sources.
Cedar Rapids: Storm surge model is not available for this location yet.
Rock Valley: Storm surge model is not available for this location yet.
Wildfire
Cedar Rapids: 44/100 · Rock Valley: 39/100
Cedar Rapids is 5 points higher.
Cedar Rapids: Wildfire exposure derived from ingested fire potential tiles.
Rock Valley: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Cedar Rapids: 26/100 · Rock Valley: 22/100
Cedar Rapids is 4 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.
Rock Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.