City vs city
St. John vs St. Louis, MO
St. John 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 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
St. John: 47/100 · St. Louis: 38/100
St. John is 9 points higher.
Flood
St. John: 42/100 · St. Louis: 32/100
St. John is 10 points higher.
St. John: FEMA NFHL flood zones: 6 features intersect this tile.
St. Louis: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
St. John: 16/100 · St. Louis: 16/100
No gap.
St. John: Wind exposure derived from ingested design wind / climatology tiles.
St. Louis: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
St. John: 43/100 · St. Louis: 39/100
St. John is 4 points higher.
St. John: Lightning exposure derived from ingested climatology tiles.
St. Louis: Lightning exposure derived from ingested climatology tiles.
Tornado
St. John: 69/100 · St. Louis: 15/100
St. John is 54 points higher.
St. John: Tornado risk derived from NOAA SPC historical reports.
St. Louis: Tornado risk derived from NOAA SPC historical reports.
Hail
St. John: 100/100 · St. Louis: 100/100
No gap.
St. John: Hail risk derived from NOAA SPC historical reports.
St. Louis: Hail risk derived from NOAA SPC historical reports.
Storm surge
St. John: Unavailable · St. Louis: Unavailable
A score difference cannot be calculated without both sources.
St. John: Storm surge model is not available for this location yet.
St. Louis: Storm surge model is not available for this location yet.
Wildfire
St. John: 34/100 · St. Louis: 38/100
St. Louis is 4 points higher.
St. John: Wildfire exposure derived from ingested fire potential tiles.
St. Louis: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
St. John: 28/100 · St. Louis: 27/100
St. John is 1 points higher.
St. John: 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. Louis: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.