City vs city
Columbia vs Philadelphia, PA
Columbia currently scores 2 points higher overall than Philadelphia, 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 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
Columbia: 37/100 · Philadelphia: 35/100
Columbia is 2 points higher.
Flood
Columbia: 64/100 · Philadelphia: 60/100
Columbia is 4 points higher.
Columbia: FEMA NFHL flood zones: 2 features intersect this tile.
Philadelphia: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Columbia: 21/100 · Philadelphia: 22/100
Philadelphia is 1 points higher.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Philadelphia: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 45/100 · Philadelphia: 35/100
Columbia is 10 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
Philadelphia: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 15/100 · Philadelphia: 8/100
Columbia is 7 points higher.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Philadelphia: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 34/100 · Philadelphia: 18/100
Columbia is 16 points higher.
Columbia: Hail risk derived from NOAA SPC historical reports.
Philadelphia: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Philadelphia: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Philadelphia: Storm surge model is not available for this location yet.
Wildfire
Columbia: 38/100 · Philadelphia: 55/100
Philadelphia is 17 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Philadelphia: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Columbia: 44/100 · Philadelphia: 44/100
No gap.
Columbia: 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.