City vs city
Chicago vs Rock Falls, IL
Rock Falls currently scores 3 points higher overall than Chicago, 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
Chicago: 40/100 · Rock Falls: 43/100
Rock Falls is 3 points higher.
Flood
Chicago: 44/100 · Rock Falls: 51/100
Rock Falls is 7 points higher.
Chicago: FEMA NFHL flood zones: 10 features intersect this tile.
Rock Falls: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Chicago: 16/100 · Rock Falls: 16/100
No gap.
Chicago: Wind exposure derived from ingested design wind / climatology tiles.
Rock Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chicago: 35/100 · Rock Falls: 36/100
Rock Falls is 1 points higher.
Chicago: Lightning exposure derived from ingested climatology tiles.
Rock Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Chicago: 27/100 · Rock Falls: 58/100
Rock Falls is 31 points higher.
Chicago: Tornado risk derived from NOAA SPC historical reports.
Rock Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Chicago: 100/100 · Rock Falls: 89/100
Chicago is 11 points higher.
Chicago: Hail risk derived from NOAA SPC historical reports.
Rock Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chicago: Unavailable · Rock Falls: Unavailable
A score difference cannot be calculated without both sources.
Chicago: Storm surge model is not available for this location yet.
Rock Falls: Storm surge model is not available for this location yet.
Wildfire
Chicago: 27/100 · Rock Falls: 20/100
Chicago is 7 points higher.
Chicago: Wildfire exposure derived from ingested fire potential tiles.
Rock Falls: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chicago: 28/100 · Rock Falls: 29/100
Rock Falls is 1 points higher.
Chicago: 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 Falls: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.