| 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 2024 dollars |
Average paid loss
in 2024 dollars |
| 1 |
Aug. 2005 |
Hurricane Katrina |
168,200 |
$16,330 |
$26,247 |
$156,046 |
| 2 |
Oct. 2012 |
Superstorm Sandy |
132,800 |
8,967 |
12,236 |
92,139 |
| 3 |
Sep. 2017 |
Hurricane Harvey |
77,100 |
9,015 |
11,591 |
150,337 |
| 4 |
Sep. 2022 |
Hurricane Ian |
48,000 |
4,300 |
4,555 |
94,896 |
| 5 |
Sep. 2008 |
Hurricane Ike |
46,900 |
2,711 |
3,911 |
83,390 |
| 6 |
Aug. 2016 |
Louisiana severe storms and flooding |
27,600 |
2,522 |
3,305 |
119,746 |
| 7 |
Sep. 2004 |
Hurricane Ivan |
31,000 |
1,671 |
2,778 |
89,613 |
| 8 |
May 2001 |
Tropical Storm Allison |
30,900 |
1,110 |
1,968 |
63,689 |
| 9 |
Aug. 2011 |
Hurricane Irene |
43,800 |
1,344 |
1,873 |
42,763 |
| 10 |
Sep. 2024 |
Hurricane Helene |
43,700 |
1,779 |
1,779 |
40,709 |
(1) Defined by the National Flood Insurance Program as an event that produces at least 1,500 paid losses, since 1978. As of January 2025.
Source: Federal Emergency Management Agency (FEMA) National Flood Insurance Program (NFIP) data; analysis courtesy of Aon. |
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