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