City vs city
King of Prussia vs Upper Merion Township, PA
King of Prussia and Upper Merion Township are tied on overall score, with the biggest factor difference 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
King of Prussia: 36/100 · Upper Merion Township: 36/100
No gap.
Flood
King of Prussia: 68/100 · Upper Merion Township: 68/100
No gap.
King of Prussia: FEMA NFHL flood zones: 10 features intersect this tile.
Upper Merion Township: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
King of Prussia: 22/100 · Upper Merion Township: 22/100
No gap.
King of Prussia: Wind exposure derived from ingested design wind / climatology tiles.
Upper Merion Township: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
King of Prussia: 39/100 · Upper Merion Township: 39/100
No gap.
King of Prussia: Lightning exposure derived from ingested climatology tiles.
Upper Merion Township: Lightning exposure derived from ingested climatology tiles.
Tornado
King of Prussia: 15/100 · Upper Merion Township: 15/100
No gap.
King of Prussia: Tornado risk derived from NOAA SPC historical reports.
Upper Merion Township: Tornado risk derived from NOAA SPC historical reports.
Hail
King of Prussia: 27/100 · Upper Merion Township: 27/100
No gap.
King of Prussia: Hail risk derived from NOAA SPC historical reports.
Upper Merion Township: Hail risk derived from NOAA SPC historical reports.
Storm surge
King of Prussia: Unavailable · Upper Merion Township: Unavailable
A score difference cannot be calculated without both sources.
King of Prussia: Storm surge model is not available for this location yet.
Upper Merion Township: Storm surge model is not available for this location yet.
Wildfire
King of Prussia: 44/100 · Upper Merion Township: 44/100
No gap.
King of Prussia: Wildfire exposure derived from ingested fire potential tiles.
Upper Merion Township: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
King of Prussia: 40/100 · Upper Merion Township: 40/100
No gap.
King of Prussia: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Upper Merion Township: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.