City vs city
Saint Louis vs Troy, MO
Troy currently scores 11 points higher overall than Saint Louis, 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
Saint Louis: 36/100 · Troy: 47/100
Troy is 11 points higher.
Flood
Saint Louis: 7/100 · Troy: 47/100
Troy is 40 points higher.
Saint Louis: FEMA NFHL flood zones: 4 features intersect this tile.
Troy: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Saint Louis: 16/100 · Troy: 16/100
No gap.
Saint Louis: Wind exposure derived from ingested design wind / climatology tiles.
Troy: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Saint Louis: 37/100 · Troy: 43/100
Troy is 6 points higher.
Saint Louis: Lightning exposure derived from ingested climatology tiles.
Troy: Lightning exposure derived from ingested climatology tiles.
Tornado
Saint Louis: 35/100 · Troy: 62/100
Troy is 27 points higher.
Saint Louis: Tornado risk derived from NOAA SPC historical reports.
Troy: Tornado risk derived from NOAA SPC historical reports.
Hail
Saint Louis: 100/100 · Troy: 96/100
Saint Louis is 4 points higher.
Saint Louis: Hail risk derived from NOAA SPC historical reports.
Troy: Hail risk derived from NOAA SPC historical reports.
Storm surge
Saint Louis: Unavailable · Troy: Unavailable
A score difference cannot be calculated without both sources.
Saint Louis: Storm surge model is not available for this location yet.
Troy: Storm surge model is not available for this location yet.
Wildfire
Saint Louis: 29/100 · Troy: 36/100
Troy is 7 points higher.
Saint Louis: Wildfire exposure derived from ingested fire potential tiles.
Troy: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Saint Louis: 28/100 · Troy: 28/100
No gap.
Saint 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.
Troy: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.