City vs city
Columbia vs Parsippany-Troy Hills, NJ
Parsippany-Troy Hills currently scores 2 points higher overall than Columbia, with the largest gap in wildfire.
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
Columbia: 27/100 · Parsippany-Troy Hills: 29/100
Parsippany-Troy Hills is 2 points higher.
Flood
Columbia: 11/100 · Parsippany-Troy Hills: 0/100
Columbia is 11 points higher.
Columbia: FEMA NFHL flood zones: 3 features intersect this tile.
Parsippany-Troy Hills: FEMA NFHL flood zones: 0 features intersect this tile.
Wind
Columbia: 21/100 · Parsippany-Troy Hills: 22/100
Parsippany-Troy Hills is 1 points higher.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Parsippany-Troy Hills: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 21/100 · Parsippany-Troy Hills: 20/100
Columbia is 1 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
Parsippany-Troy Hills: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 0/100 · Parsippany-Troy Hills: 0/100
No gap.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Parsippany-Troy Hills: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 13/100 · Parsippany-Troy Hills: 28/100
Parsippany-Troy Hills is 15 points higher.
Columbia: Hail risk derived from NOAA SPC historical reports.
Parsippany-Troy Hills: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Parsippany-Troy Hills: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Parsippany-Troy Hills: Storm surge model is not available for this location yet.
Wildfire
Columbia: 52/100 · Parsippany-Troy Hills: 69/100
Parsippany-Troy Hills is 17 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Parsippany-Troy Hills: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Columbia: 43/100 · Parsippany-Troy Hills: 37/100
Columbia is 6 points higher.
Columbia: 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.