City vs city

Collingdale vs Philadelphia, PA

Collingdale currently scores 5 points higher overall than Philadelphia, with the largest gap in wildfire.

Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.

Collingdale

40/100

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Philadelphia

35/100

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Hazard breakdown

Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality is a current EPA AirNow signal; 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

Collingdale: 40/100 · Philadelphia: 35/100

Collingdale is 5 points higher.

Flood

Collingdale: 83/100 · Philadelphia: 60/100

Collingdale is 23 points higher.

Collingdale: FEMA NFHL flood zones: 12 features intersect this tile.

Philadelphia: FEMA NFHL flood zones: 4 features intersect this tile.

Wind

Collingdale: 22/100 · Philadelphia: 22/100

No gap.

Collingdale: Wind exposure derived from ingested design wind / climatology tiles.

Philadelphia: Wind exposure derived from ingested design wind / climatology tiles.

Lightning

Collingdale: 37/100 · Philadelphia: 35/100

Collingdale is 2 points higher.

Collingdale: Lightning exposure derived from ingested climatology tiles.

Philadelphia: Lightning exposure derived from ingested climatology tiles.

Tornado

Collingdale: 8/100 · Philadelphia: 8/100

No gap.

Collingdale: Tornado risk derived from NOAA SPC historical reports.

Philadelphia: Tornado risk derived from NOAA SPC historical reports.

Hail

Collingdale: 43/100 · Philadelphia: 18/100

Collingdale is 25 points higher.

Collingdale: Hail risk derived from NOAA SPC historical reports.

Philadelphia: Hail risk derived from NOAA SPC historical reports.

Storm surge

Collingdale: 67/100 · Philadelphia: Unavailable

A score difference cannot be calculated without both sources.

Collingdale: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.

Philadelphia: Storm surge model is not available for this location yet.

Wildfire

Collingdale: 15/100 · Philadelphia: 55/100

Philadelphia is 40 points higher.

Collingdale: Wildfire exposure derived from ingested fire potential tiles.

Philadelphia: Wildfire exposure derived from ingested fire potential tiles.

Current air quality

Collingdale: 44/100 · Philadelphia: 44/100

No gap.

Collingdale: Air quality signal derived from the latest EPA AirNow combined AQI grid.

Philadelphia: Air quality signal derived from the latest EPA AirNow combined AQI grid.