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Rockingham County Disaster Risk Profile
Population 315,169
50/100
Composite disaster-history score. Higher than 80% of U.S. counties. The New Hampshire average is 48.
Our calculation — not a government figure. Method.
What goes into it
Federal disaster declarations35 since 1953
93th percentile of all counties
Severe storms (events & deaths)4 notable · 5 deaths
51th 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 Rockingham County →
Counties in New Hampshire 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.