City vs city
Castle Rock vs Thornton, CO
Castle Rock currently scores 4 points higher overall than Thornton, 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
Castle Rock: 52/100 · Thornton: 48/100
Castle Rock is 4 points higher.
Flood
Castle Rock: 40/100 · Thornton: 54/100
Thornton is 14 points higher.
Castle Rock: FEMA NFHL flood zones: 7 features intersect this tile.
Thornton: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Castle Rock: 15/100 · Thornton: 15/100
No gap.
Castle Rock: Wind exposure derived from ingested design wind / climatology tiles.
Thornton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Castle Rock: 34/100 · Thornton: 32/100
Castle Rock is 2 points higher.
Castle Rock: Lightning exposure derived from ingested climatology tiles.
Thornton: Lightning exposure derived from ingested climatology tiles.
Tornado
Castle Rock: 85/100 · Thornton: 27/100
Castle Rock is 58 points higher.
Castle Rock: Tornado risk derived from NOAA SPC historical reports.
Thornton: Tornado risk derived from NOAA SPC historical reports.
Hail
Castle Rock: 100/100 · Thornton: 100/100
No gap.
Castle Rock: Hail risk derived from NOAA SPC historical reports.
Thornton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Castle Rock: Unavailable · Thornton: Unavailable
A score difference cannot be calculated without both sources.
Castle Rock: Storm surge model is not available for this location yet.
Thornton: Storm surge model is not available for this location yet.
Wildfire
Castle Rock: 65/100 · Thornton: 75/100
Thornton is 10 points higher.
Castle Rock: Wildfire exposure derived from ingested fire potential tiles.
Thornton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Castle Rock: 28/100 · Thornton: 31/100
Thornton is 3 points higher.
Castle Rock: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Thornton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.