City vs city
Ballwin vs Valley Park, MO
Ballwin currently scores 4 points higher overall than Valley Park, 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
Ballwin: 45/100 · Valley Park: 41/100
Ballwin is 4 points higher.
Flood
Ballwin: 40/100 · Valley Park: 48/100
Valley Park is 8 points higher.
Ballwin: FEMA NFHL flood zones: 6 features intersect this tile.
Valley Park: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Ballwin: 16/100 · Valley Park: 16/100
No gap.
Ballwin: Wind exposure derived from ingested design wind / climatology tiles.
Valley Park: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ballwin: 44/100 · Valley Park: 43/100
Ballwin is 1 points higher.
Ballwin: Lightning exposure derived from ingested climatology tiles.
Valley Park: Lightning exposure derived from ingested climatology tiles.
Tornado
Ballwin: 54/100 · Valley Park: 12/100
Ballwin is 42 points higher.
Ballwin: Tornado risk derived from NOAA SPC historical reports.
Valley Park: Tornado risk derived from NOAA SPC historical reports.
Hail
Ballwin: 100/100 · Valley Park: 100/100
No gap.
Ballwin: Hail risk derived from NOAA SPC historical reports.
Valley Park: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ballwin: Unavailable · Valley Park: Unavailable
A score difference cannot be calculated without both sources.
Ballwin: Storm surge model is not available for this location yet.
Valley Park: Storm surge model is not available for this location yet.
Wildfire
Ballwin: 39/100 · Valley Park: 45/100
Valley Park is 6 points higher.
Ballwin: Wildfire exposure derived from ingested fire potential tiles.
Valley Park: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Ballwin: 25/100 · Valley Park: 25/100
No gap.
Ballwin: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Valley Park: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.