City vs city
Rockford vs Spring Valley, IL
Rockford currently scores 7 points higher overall than Spring Valley, with the largest gap in hail.
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
Rockford: 40/100 · Spring Valley: 33/100
Rockford is 7 points higher.
Flood
Rockford: 39/100 · Spring Valley: 56/100
Spring Valley is 17 points higher.
Rockford: FEMA NFHL flood zones: 6 features intersect this tile.
Spring Valley: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Rockford: 16/100 · Spring Valley: 16/100
No gap.
Rockford: Wind exposure derived from ingested design wind / climatology tiles.
Spring Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Rockford: 56/100 · Spring Valley: 45/100
Rockford is 11 points higher.
Rockford: Lightning exposure derived from ingested climatology tiles.
Spring Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Rockford: 15/100 · Spring Valley: 4/100
Rockford is 11 points higher.
Rockford: Tornado risk derived from NOAA SPC historical reports.
Spring Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Rockford: 100/100 · Spring Valley: 49/100
Rockford is 51 points higher.
Rockford: Hail risk derived from NOAA SPC historical reports.
Spring Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Rockford: Unavailable · Spring Valley: Unavailable
A score difference cannot be calculated without both sources.
Rockford: Storm surge model is not available for this location yet.
Spring Valley: Storm surge model is not available for this location yet.
Wildfire
Rockford: 26/100 · Spring Valley: 31/100
Spring Valley is 5 points higher.
Rockford: Wildfire exposure derived from ingested fire potential tiles.
Spring Valley: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Rockford: 26/100 · Spring Valley: 28/100
Spring Valley is 2 points higher.
Rockford: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Spring Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.