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New Castle County Disaster Risk Profile
Population 570,567
26/100
Composite disaster-history score. Higher than 33% of U.S. counties. The Delaware average is 27.
Our calculation — not a government figure. Method.
What goes into it
Federal disaster declarations17 since 1953
31th percentile of all counties
Severe storms (events & deaths)6 notable · 6 deaths
55th percentile of all counties
Earthquakes (M4.5+)0
0th percentile of all counties
Large wildfires (1,000+ acres)0
0th percentile of all counties
Weights: declarations 40%, storms 25%, earthquakes 20%, wildfires 15%. Each layer is scored by its percentile rank among all counties, on a log scale so a handful of counties with enormous counts do not flatten everyone else.
See the full event history for New Castle County →
Counties in Delaware with a similar score
This score summarises the past. It is not a forecast, an insurance rating, or a judgment about whether to live somewhere — for that, see FEMA's National Risk Index and current National Weather Service guidance. Sources: FEMA, USGS, NIFC, NOAA/NCEI.