City vs city
Chicago vs Harrison, IL
Harrison currently scores 2 points higher overall than Chicago, with the largest gap in wildfire.
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 · Harrison: 42/100
Harrison is 2 points higher.
Flood
Chicago: 44/100 · Harrison: 43/100
Chicago is 1 points higher.
Chicago: FEMA NFHL flood zones: 10 features intersect this tile.
Harrison: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Chicago: 16/100 · Harrison: 15/100
Chicago is 1 points higher.
Chicago: Wind exposure derived from ingested design wind / climatology tiles.
Harrison: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chicago: 35/100 · Harrison: 50/100
Harrison is 15 points higher.
Chicago: Lightning exposure derived from ingested climatology tiles.
Harrison: Lightning exposure derived from ingested climatology tiles.
Tornado
Chicago: 27/100 · Harrison: 23/100
Chicago is 4 points higher.
Chicago: Tornado risk derived from NOAA SPC historical reports.
Harrison: Tornado risk derived from NOAA SPC historical reports.
Hail
Chicago: 100/100 · Harrison: 91/100
Chicago is 9 points higher.
Chicago: Hail risk derived from NOAA SPC historical reports.
Harrison: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chicago: Unavailable · Harrison: Unavailable
A score difference cannot be calculated without both sources.
Chicago: Storm surge model is not available for this location yet.
Harrison: Storm surge model is not available for this location yet.
Wildfire
Chicago: 27/100 · Harrison: 43/100
Harrison is 16 points higher.
Chicago: Wildfire exposure derived from ingested fire potential tiles.
Harrison: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chicago: 28/100 · Harrison: 26/100
Chicago is 2 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.
Harrison: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.