City vs city
Island Lake vs Joliet, IL
Joliet currently scores 8 points higher overall than Island Lake, 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
Island Lake: 39/100 · Joliet: 47/100
Joliet is 8 points higher.
Flood
Island Lake: 65/100 · Joliet: 44/100
Island Lake is 21 points higher.
Island Lake: FEMA NFHL flood zones: 20 features intersect this tile.
Joliet: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Island Lake: 16/100 · Joliet: 16/100
No gap.
Island Lake: Wind exposure derived from ingested design wind / climatology tiles.
Joliet: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Island Lake: 55/100 · Joliet: 43/100
Island Lake is 12 points higher.
Island Lake: Lightning exposure derived from ingested climatology tiles.
Joliet: Lightning exposure derived from ingested climatology tiles.
Tornado
Island Lake: 0/100 · Joliet: 81/100
Joliet is 81 points higher.
Island Lake: Tornado risk derived from NOAA SPC historical reports.
Joliet: Tornado risk derived from NOAA SPC historical reports.
Hail
Island Lake: 45/100 · Joliet: 96/100
Joliet is 51 points higher.
Island Lake: Hail risk derived from NOAA SPC historical reports.
Joliet: Hail risk derived from NOAA SPC historical reports.
Storm surge
Island Lake: Unavailable · Joliet: Unavailable
A score difference cannot be calculated without both sources.
Island Lake: Storm surge model is not available for this location yet.
Joliet: Storm surge model is not available for this location yet.
Wildfire
Island Lake: 32/100 · Joliet: 21/100
Island Lake is 11 points higher.
Island Lake: Wildfire exposure derived from ingested fire potential tiles.
Joliet: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Island Lake: 22/100 · Joliet: 28/100
Joliet is 6 points higher.
Island Lake: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Joliet: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.