City vs city
Chatfield vs St. Charles, MN
Chatfield currently scores 5 points higher overall than St. Charles, 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
Chatfield: 32/100 · St. Charles: 27/100
Chatfield is 5 points higher.
Flood
Chatfield: 37/100 · St. Charles: 5/100
Chatfield is 32 points higher.
Chatfield: FEMA NFHL flood zones: 7 features intersect this tile.
St. Charles: FEMA NFHL flood zones: 1 features intersect this tile.
Wind
Chatfield: 17/100 · St. Charles: 17/100
No gap.
Chatfield: Wind exposure derived from ingested design wind / climatology tiles.
St. Charles: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chatfield: 23/100 · St. Charles: 22/100
Chatfield is 1 points higher.
Chatfield: Lightning exposure derived from ingested climatology tiles.
St. Charles: Lightning exposure derived from ingested climatology tiles.
Tornado
Chatfield: 0/100 · St. Charles: 31/100
St. Charles is 31 points higher.
Chatfield: Tornado risk derived from NOAA SPC historical reports.
St. Charles: Tornado risk derived from NOAA SPC historical reports.
Hail
Chatfield: 67/100 · St. Charles: 64/100
Chatfield is 3 points higher.
Chatfield: Hail risk derived from NOAA SPC historical reports.
St. Charles: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chatfield: Unavailable · St. Charles: Unavailable
A score difference cannot be calculated without both sources.
Chatfield: Storm surge model is not available for this location yet.
St. Charles: Storm surge model is not available for this location yet.
Wildfire
Chatfield: 36/100 · St. Charles: 39/100
St. Charles is 3 points higher.
Chatfield: Wildfire exposure derived from ingested fire potential tiles.
St. Charles: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chatfield: 14/100 · St. Charles: 14/100
No gap.
Chatfield: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
St. Charles: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.