City vs city
Carroll Valley vs Philadelphia, PA
Philadelphia currently scores 2 points higher overall than Carroll Valley, 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
Carroll Valley: 33/100 · Philadelphia: 35/100
Philadelphia is 2 points higher.
Flood
Carroll Valley: 71/100 · Philadelphia: 60/100
Carroll Valley is 11 points higher.
Carroll Valley: FEMA NFHL flood zones: 8 features intersect this tile.
Philadelphia: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Carroll Valley: 20/100 · Philadelphia: 22/100
Philadelphia is 2 points higher.
Carroll Valley: Wind exposure derived from ingested design wind / climatology tiles.
Philadelphia: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Carroll Valley: 26/100 · Philadelphia: 35/100
Philadelphia is 9 points higher.
Carroll Valley: Lightning exposure derived from ingested climatology tiles.
Philadelphia: Lightning exposure derived from ingested climatology tiles.
Tornado
Carroll Valley: 8/100 · Philadelphia: 8/100
No gap.
Carroll Valley: Tornado risk derived from NOAA SPC historical reports.
Philadelphia: Tornado risk derived from NOAA SPC historical reports.
Hail
Carroll Valley: 27/100 · Philadelphia: 18/100
Carroll Valley is 9 points higher.
Carroll Valley: Hail risk derived from NOAA SPC historical reports.
Philadelphia: Hail risk derived from NOAA SPC historical reports.
Storm surge
Carroll Valley: Unavailable · Philadelphia: Unavailable
A score difference cannot be calculated without both sources.
Carroll Valley: Storm surge model is not available for this location yet.
Philadelphia: Storm surge model is not available for this location yet.
Wildfire
Carroll Valley: 38/100 · Philadelphia: 55/100
Philadelphia is 17 points higher.
Carroll Valley: Wildfire exposure derived from ingested fire potential tiles.
Philadelphia: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Carroll Valley: 41/100 · Philadelphia: 44/100
Philadelphia is 3 points higher.
Carroll Valley: 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.