City vs city
Johnstown vs Thornton, CO
Thornton currently scores 3 points higher overall than Johnstown, with the largest gap in flood.
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
Johnstown: 45/100 · Thornton: 48/100
Thornton is 3 points higher.
Flood
Johnstown: 100/100 · Thornton: 54/100
Johnstown is 46 points higher.
Johnstown: FEMA NFHL flood zones: 21 features intersect this tile.
Thornton: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Johnstown: 16/100 · Thornton: 15/100
Johnstown is 1 points higher.
Johnstown: Wind exposure derived from ingested design wind / climatology tiles.
Thornton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Johnstown: 25/100 · Thornton: 32/100
Thornton is 7 points higher.
Johnstown: Lightning exposure derived from ingested climatology tiles.
Thornton: Lightning exposure derived from ingested climatology tiles.
Tornado
Johnstown: 8/100 · Thornton: 27/100
Thornton is 19 points higher.
Johnstown: Tornado risk derived from NOAA SPC historical reports.
Thornton: Tornado risk derived from NOAA SPC historical reports.
Hail
Johnstown: 57/100 · Thornton: 100/100
Thornton is 43 points higher.
Johnstown: Hail risk derived from NOAA SPC historical reports.
Thornton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Johnstown: Unavailable · Thornton: Unavailable
A score difference cannot be calculated without both sources.
Johnstown: Storm surge model is not available for this location yet.
Thornton: Storm surge model is not available for this location yet.
Wildfire
Johnstown: 72/100 · Thornton: 75/100
Thornton is 3 points higher.
Johnstown: Wildfire exposure derived from ingested fire potential tiles.
Thornton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Johnstown: 37/100 · Thornton: 31/100
Johnstown is 6 points higher.
Johnstown: 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.