City vs city
Hennepin vs Joliet, IL
Joliet currently scores 8 points higher overall than Hennepin, 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
Hennepin: 39/100 · Joliet: 47/100
Joliet is 8 points higher.
Flood
Hennepin: 97/100 · Joliet: 44/100
Hennepin is 53 points higher.
Hennepin: FEMA NFHL flood zones: 7 features intersect this tile.
Joliet: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Hennepin: 16/100 · Joliet: 16/100
No gap.
Hennepin: Wind exposure derived from ingested design wind / climatology tiles.
Joliet: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Hennepin: 46/100 · Joliet: 43/100
Hennepin is 3 points higher.
Hennepin: Lightning exposure derived from ingested climatology tiles.
Joliet: Lightning exposure derived from ingested climatology tiles.
Tornado
Hennepin: 15/100 · Joliet: 81/100
Joliet is 66 points higher.
Hennepin: Tornado risk derived from NOAA SPC historical reports.
Joliet: Tornado risk derived from NOAA SPC historical reports.
Hail
Hennepin: 68/100 · Joliet: 96/100
Joliet is 28 points higher.
Hennepin: Hail risk derived from NOAA SPC historical reports.
Joliet: Hail risk derived from NOAA SPC historical reports.
Storm surge
Hennepin: Unavailable · Joliet: Unavailable
A score difference cannot be calculated without both sources.
Hennepin: Storm surge model is not available for this location yet.
Joliet: Storm surge model is not available for this location yet.
Wildfire
Hennepin: 6/100 · Joliet: 21/100
Joliet is 15 points higher.
Hennepin: Wildfire exposure derived from ingested fire potential tiles.
Joliet: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Hennepin: 28/100 · Joliet: 28/100
No gap.
Hennepin: 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.