Floods are one of the most common hazards in the United States. They can occur in any state and at virtually any time of the year. They can last just a few minutes, or as long as a few months. Their impacts can be restricted to a single neighborhood, or an entire city. On average, floods cost the American economy approximately 2.4 billion dollars per year. Each year, approximately 200 people in the United States die from flooding, most of which occur during flash flooding events. 2
Almost every U.S. county has experienced major flooding, i.e. a presidential disaster was declared. Not only are most counties susceptible to severe flooding but it is also a reoccurring hazard as indicated by the counties highlighted in red.3
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Between 1960 and 2005, flooding caused $84 billion in direct losses. This does not include insured losses or indirect losses (e.g. lost revenue, etc.). If one would add storm surge losses (in above graphic classified as partially coastal), direct flood losses exceed $100 billion. As such flooding is the second most expensive hazard type after tropical storms and hurricanes.Data Source: SHELDUS 5.14