Top 10 Most Significant Flood Events By National Flood Insurance Program Payouts (1)

 

Rank Date Event Number of paid losses Amount paid ($ millions) when occurred Amount paid ($ millions) in 2023 dollars Average paid loss in 2023 dollars
1 Aug. 2005 Hurricane Katrina 168,200 $16,330 $25,592 $152,152
2 Oct. 2012 Superstorm Sandy 132,800 8,967 11,931 89,842
3 Sep. 2017 Hurricane Harvey 77,100 9,015 11,302 146,589
4 Sep. 2022 Hurricane Ian 48,000 4,300 4,441 92,521
5 Sep. 2008 Hurricane Ike 46,900 2,711 3,814 81,322
6 Aug. 2016 Louisiana severe storms and flooding 27,600 2,522 3,223 116,775
7 Sep. 2004 Hurricane Ivan 31,000 1,671 2,709 87,387
8 May 2001 Tropical Storm Allison 62,200 1,110 1,919 30,852
9 Aug. 2011 Hurricane Irene 43,800 1,344 1,826 41,689
10 Apr. 2017 Hurricane Irma 22,300 1,094 1,365 61,211
(1) Includes events from 1978 to December 31, 2023 as of January 2024. Defined by the National Flood Insurance Program as an event that produces at least 1,500 paid losses. Ranked on Amount Paid in 2023 dollars. Source: Federal Emergency Management Agency (FEMA) National Flood Insurance Program (NFIP) data; analysis courtesy of Aon.