City vs city
Greenwich vs Parsippany-Troy Hills, NJ
Greenwich currently scores 17 points higher overall than Parsippany-Troy Hills, 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
Greenwich: 46/100 · Parsippany-Troy Hills: 29/100
Greenwich is 17 points higher.
Flood
Greenwich: 79/100 · Parsippany-Troy Hills: 0/100
Greenwich is 79 points higher.
Greenwich: FEMA NFHL flood zones: 11 features intersect this tile.
Parsippany-Troy Hills: FEMA NFHL flood zones: 0 features intersect this tile.
Wind
Greenwich: 23/100 · Parsippany-Troy Hills: 22/100
Greenwich is 1 points higher.
Greenwich: Wind exposure derived from ingested design wind / climatology tiles.
Parsippany-Troy Hills: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Greenwich: 27/100 · Parsippany-Troy Hills: 20/100
Greenwich is 7 points higher.
Greenwich: Lightning exposure derived from ingested climatology tiles.
Parsippany-Troy Hills: Lightning exposure derived from ingested climatology tiles.
Tornado
Greenwich: 0/100 · Parsippany-Troy Hills: 0/100
No gap.
Greenwich: Tornado risk derived from NOAA SPC historical reports.
Parsippany-Troy Hills: Tornado risk derived from NOAA SPC historical reports.
Hail
Greenwich: 13/100 · Parsippany-Troy Hills: 28/100
Parsippany-Troy Hills is 15 points higher.
Greenwich: Hail risk derived from NOAA SPC historical reports.
Parsippany-Troy Hills: Hail risk derived from NOAA SPC historical reports.
Storm surge
Greenwich: 97/100 · Parsippany-Troy Hills: Unavailable
A score difference cannot be calculated without both sources.
Greenwich: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Parsippany-Troy Hills: Storm surge model is not available for this location yet.
Wildfire
Greenwich: 47/100 · Parsippany-Troy Hills: 69/100
Parsippany-Troy Hills is 22 points higher.
Greenwich: Wildfire exposure derived from ingested fire potential tiles.
Parsippany-Troy Hills: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Greenwich: 39/100 · Parsippany-Troy Hills: 37/100
Greenwich is 2 points higher.
Greenwich: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Parsippany-Troy Hills: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.