City vs city
Boulder Hill vs North Aurora, IL
Boulder Hill and North Aurora are tied on overall score, with the biggest factor difference 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 · North Aurora: 42/100
No gap.
Flood
Boulder Hill: 43/100 · North Aurora: 40/100
Boulder Hill is 3 points higher.
Boulder Hill: FEMA NFHL flood zones: 15 features intersect this tile.
North Aurora: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Boulder Hill: 16/100 · North Aurora: 16/100
No gap.
Boulder Hill: Wind exposure derived from ingested design wind / climatology tiles.
North Aurora: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Boulder Hill: 44/100 · North Aurora: 47/100
North Aurora is 3 points higher.
Boulder Hill: Lightning exposure derived from ingested climatology tiles.
North Aurora: Lightning exposure derived from ingested climatology tiles.
Tornado
Boulder Hill: 42/100 · North Aurora: 38/100
Boulder Hill is 4 points higher.
Boulder Hill: Tornado risk derived from NOAA SPC historical reports.
North Aurora: Tornado risk derived from NOAA SPC historical reports.
Hail
Boulder Hill: 100/100 · North Aurora: 100/100
No gap.
Boulder Hill: Hail risk derived from NOAA SPC historical reports.
North Aurora: Hail risk derived from NOAA SPC historical reports.
Storm surge
Boulder Hill: Unavailable · North Aurora: Unavailable
A score difference cannot be calculated without both sources.
Boulder Hill: Storm surge model is not available for this location yet.
North Aurora: Storm surge model is not available for this location yet.
Wildfire
Boulder Hill: 21/100 · North Aurora: 22/100
North Aurora is 1 points higher.
Boulder Hill: Wildfire exposure derived from ingested fire potential tiles.
North Aurora: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Boulder Hill: 29/100 · North Aurora: 29/100
No gap.
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.
North Aurora: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.