City vs city
Chicago vs Rock Island, IL
Chicago and Rock Island are tied on overall score, with the biggest factor difference 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 is a current EPA AirNow signal; 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 Island: 40/100
No gap.
Flood
Chicago: 44/100 · Rock Island: 48/100
Rock Island is 4 points higher.
Chicago: FEMA NFHL flood zones: 10 features intersect this tile.
Rock Island: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Chicago: 16/100 · Rock Island: 17/100
Rock Island is 1 points higher.
Chicago: Wind exposure derived from ingested design wind / climatology tiles.
Rock Island: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chicago: 35/100 · Rock Island: 42/100
Rock Island is 7 points higher.
Chicago: Lightning exposure derived from ingested climatology tiles.
Rock Island: Lightning exposure derived from ingested climatology tiles.
Tornado
Chicago: 27/100 · Rock Island: 15/100
Chicago is 12 points higher.
Chicago: Tornado risk derived from NOAA SPC historical reports.
Rock Island: Tornado risk derived from NOAA SPC historical reports.
Hail
Chicago: 100/100 · Rock Island: 100/100
No gap.
Chicago: Hail risk derived from NOAA SPC historical reports.
Rock Island: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chicago: Unavailable · Rock Island: Unavailable
A score difference cannot be calculated without both sources.
Chicago: Storm surge model is not available for this location yet.
Rock Island: Storm surge model is not available for this location yet.
Wildfire
Chicago: 27/100 · Rock Island: 33/100
Rock Island is 6 points higher.
Chicago: Wildfire exposure derived from ingested fire potential tiles.
Rock Island: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Chicago: 28/100 · Rock Island: 26/100
Chicago is 2 points higher.
Chicago: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Rock Island: Air quality signal derived from the latest EPA AirNow combined AQI grid.