City vs city
Naperville vs Rockford, IL
Naperville currently scores 6 points higher overall than Rockford, 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 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
Naperville: 46/100 · Rockford: 40/100
Naperville is 6 points higher.
Flood
Naperville: 50/100 · Rockford: 39/100
Naperville is 11 points higher.
Naperville: FEMA NFHL flood zones: 15 features intersect this tile.
Rockford: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Naperville: 16/100 · Rockford: 16/100
No gap.
Naperville: Wind exposure derived from ingested design wind / climatology tiles.
Rockford: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Naperville: 42/100 · Rockford: 56/100
Rockford is 14 points higher.
Naperville: Lightning exposure derived from ingested climatology tiles.
Rockford: Lightning exposure derived from ingested climatology tiles.
Tornado
Naperville: 65/100 · Rockford: 15/100
Naperville is 50 points higher.
Naperville: Tornado risk derived from NOAA SPC historical reports.
Rockford: Tornado risk derived from NOAA SPC historical reports.
Hail
Naperville: 100/100 · Rockford: 100/100
No gap.
Naperville: Hail risk derived from NOAA SPC historical reports.
Rockford: Hail risk derived from NOAA SPC historical reports.
Storm surge
Naperville: Unavailable · Rockford: Unavailable
A score difference cannot be calculated without both sources.
Naperville: Storm surge model is not available for this location yet.
Rockford: Storm surge model is not available for this location yet.
Wildfire
Naperville: 19/100 · Rockford: 26/100
Rockford is 7 points higher.
Naperville: Wildfire exposure derived from ingested fire potential tiles.
Rockford: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Naperville: 31/100 · Rockford: 26/100
Naperville is 5 points higher.
Naperville: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Rockford: Air quality signal derived from the latest EPA AirNow combined AQI grid.