City vs city
Saint Louis vs Vienna, MO
Saint Louis currently scores 8 points higher overall than Vienna, with the largest gap in hail.
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 · Vienna: 28/100
Saint Louis is 8 points higher.
Flood
Saint Louis: 7/100 · Vienna: 0/100
Saint Louis is 7 points higher.
Saint Louis: FEMA NFHL flood zones: 4 features intersect this tile.
Vienna: FEMA NFHL flood zones: 0 features intersect this tile.
Wind
Saint Louis: 16/100 · Vienna: 16/100
No gap.
Saint Louis: Wind exposure derived from ingested design wind / climatology tiles.
Vienna: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Saint Louis: 37/100 · Vienna: 56/100
Vienna is 19 points higher.
Saint Louis: Lightning exposure derived from ingested climatology tiles.
Vienna: Lightning exposure derived from ingested climatology tiles.
Tornado
Saint Louis: 35/100 · Vienna: 4/100
Saint Louis is 31 points higher.
Saint Louis: Tornado risk derived from NOAA SPC historical reports.
Vienna: Tornado risk derived from NOAA SPC historical reports.
Hail
Saint Louis: 100/100 · Vienna: 64/100
Saint Louis is 36 points higher.
Saint Louis: Hail risk derived from NOAA SPC historical reports.
Vienna: Hail risk derived from NOAA SPC historical reports.
Storm surge
Saint Louis: Unavailable · Vienna: Unavailable
A score difference cannot be calculated without both sources.
Saint Louis: Storm surge model is not available for this location yet.
Vienna: Storm surge model is not available for this location yet.
Wildfire
Saint Louis: 29/100 · Vienna: 42/100
Vienna is 13 points higher.
Saint Louis: Wildfire exposure derived from ingested fire potential tiles.
Vienna: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Saint Louis: 28/100 · Vienna: 13/100
Saint Louis is 15 points higher.
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.
Vienna: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.