City vs city
Boulder Hill vs Rockford, IL
Boulder Hill currently scores 2 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 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
Boulder Hill: 42/100 · Rockford: 40/100
Boulder Hill is 2 points higher.
Flood
Boulder Hill: 43/100 · Rockford: 39/100
Boulder Hill is 4 points higher.
Boulder Hill: FEMA NFHL flood zones: 15 features intersect this tile.
Rockford: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Boulder Hill: 16/100 · Rockford: 16/100
No gap.
Boulder Hill: Wind exposure derived from ingested design wind / climatology tiles.
Rockford: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Boulder Hill: 44/100 · Rockford: 56/100
Rockford is 12 points higher.
Boulder Hill: Lightning exposure derived from ingested climatology tiles.
Rockford: Lightning exposure derived from ingested climatology tiles.
Tornado
Boulder Hill: 42/100 · Rockford: 15/100
Boulder Hill is 27 points higher.
Boulder Hill: Tornado risk derived from NOAA SPC historical reports.
Rockford: Tornado risk derived from NOAA SPC historical reports.
Hail
Boulder Hill: 100/100 · Rockford: 100/100
No gap.
Boulder Hill: Hail risk derived from NOAA SPC historical reports.
Rockford: Hail risk derived from NOAA SPC historical reports.
Storm surge
Boulder Hill: Unavailable · Rockford: Unavailable
A score difference cannot be calculated without both sources.
Boulder Hill: Storm surge model is not available for this location yet.
Rockford: Storm surge model is not available for this location yet.
Wildfire
Boulder Hill: 21/100 · Rockford: 26/100
Rockford is 5 points higher.
Boulder Hill: Wildfire exposure derived from ingested fire potential tiles.
Rockford: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Boulder Hill: 29/100 · Rockford: 26/100
Boulder Hill is 3 points higher.
Boulder Hill: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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.