City vs city
St. Charles vs St. Louis, MO
St. Charles currently scores 9 points higher overall than St. Louis, 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 is a current EPA AirNow signal; 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
St. Charles: 47/100 · St. Louis: 38/100
St. Charles is 9 points higher.
Flood
St. Charles: 55/100 · St. Louis: 32/100
St. Charles is 23 points higher.
St. Charles: FEMA NFHL flood zones: 8 features intersect this tile.
St. Louis: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
St. Charles: 16/100 · St. Louis: 16/100
No gap.
St. Charles: Wind exposure derived from ingested design wind / climatology tiles.
St. Louis: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
St. Charles: 44/100 · St. Louis: 39/100
St. Charles is 5 points higher.
St. Charles: Lightning exposure derived from ingested climatology tiles.
St. Louis: Lightning exposure derived from ingested climatology tiles.
Tornado
St. Charles: 46/100 · St. Louis: 15/100
St. Charles is 31 points higher.
St. Charles: Tornado risk derived from NOAA SPC historical reports.
St. Louis: Tornado risk derived from NOAA SPC historical reports.
Hail
St. Charles: 100/100 · St. Louis: 100/100
No gap.
St. Charles: Hail risk derived from NOAA SPC historical reports.
St. Louis: Hail risk derived from NOAA SPC historical reports.
Storm surge
St. Charles: Unavailable · St. Louis: Unavailable
A score difference cannot be calculated without both sources.
St. Charles: Storm surge model is not available for this location yet.
St. Louis: Storm surge model is not available for this location yet.
Wildfire
St. Charles: 37/100 · St. Louis: 38/100
St. Louis is 1 points higher.
St. Charles: Wildfire exposure derived from ingested fire potential tiles.
St. Louis: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
St. Charles: 28/100 · St. Louis: 27/100
St. Charles is 1 points higher.
St. Charles: Air quality signal derived from the latest EPA AirNow combined AQI grid.
St. Louis: Air quality signal derived from the latest EPA AirNow combined AQI grid.