23/100
Composite disaster-history score. Higher than 27% of U.S. counties. The Illinois average is 22.
Our calculation — not a government figure. Method.
What goes into it
Federal disaster declarations11 since 1953
11th percentile of all counties
Severe storms (events & deaths)2 notable · 4 deaths
76th 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 De Witt County →
Counties in Illinois 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.