31declarations
21major disasters
10emergencies
1965first on record
2024latest
By hazard
Hurricane12
Severe Storm6
Flood4
Snowstorm3
Biological2
Other2
Fire1
Drought1
By decade
11960s
21970s
21980s
61990s
72000s
62010s
72020s
Population: 1,395,805 in April 2020, 1,392,438 in July 2024 (Census Bureau estimates).
Declarations naming Nassau County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| Jan 30, 2024 | DR-4755-NY | Severe Storm and Flooding | Flood | PAHM | $15.0 million |
| Sep 5, 2021 | DR-4615-NY | Remnants of Hurricane Ida | Hurricane | IHPPAHM | $1.02 billion |
| Sep 2, 2021 | EM-3572-NY | Remnants of Hurricane Ida | Hurricane | PA | — |
| Aug 22, 2021 | EM-3565-NY | Hurricane Henri | Hurricane | PA | — |
| Oct 2, 2020 | DR-4567-NY | Tropical Storm Isaias | Hurricane | PAHM | $793.1 million |
| Mar 20, 2020 | DR-4480-NY | COVID-19 Pandemic | Biological | IHPPAHM | $17.78 billion |
| Mar 13, 2020 | EM-3434-NY | COVID-19 | Biological | PA | — |
| Oct 30, 2012 | DR-4085-NY | Hurricane Sandy | Hurricane | IHPPAHM | $17.25 billion |
| Oct 28, 2012 | EM-3351-NY | Hurricane Sandy | Hurricane | PA | — |
| Aug 31, 2011 | DR-4020-NY | Hurricane Irene | Hurricane | IHPPAHM | $731.9 million |
| Aug 26, 2011 | EM-3328-NY | Hurricane Irene | Hurricane | PA | $1.3 million |
| Feb 18, 2011 | DR-1957-NY | Severe Winter Storm and Snowstorm | Severe Storm | PAHM | $49.8 million |
| Apr 16, 2010 | DR-1899-NY | Severe Storms and Flooding | Severe Storm | PAHM | $102.5 million |
| Dec 31, 2009 | DR-1869-NY | Severe Storms and Flooding Assoc W Td Ida & Nor'easter | Severe Storm | PAHM | $17.7 million |
| Sep 30, 2005 | EM-3262-NY | Hurricane Katrina Evacuation | Hurricane | PA | $2.8 million |
| Aug 3, 2004 | DR-1534-NY | Severe Storms and Flooding | Severe Storm | PAHM | $19.2 million |
| Aug 23, 2003 | EM-3186-NY | Power Outage | Other | PA | $5.4 million |
| Mar 27, 2003 | EM-3184-NY | Snow | Snowstorm | PA | $33.7 million |
| Sep 11, 2001 | DR-1391-NY | Fires and Explosions | Fire | IAPAHM | $5.00 billion |
| Oct 11, 2000 | EM-3155-NY | West Nile Virus | Other | PA | $4.7 million |
| Sep 19, 1999 | DR-1296-NY | Hurricane Floyd Major Disaster Declarations | Hurricane | IAPAHM | $45.6 million |
| Sep 11, 1998 | DR-1244-NY | Ny - Severe Wx, Sept 7, 1998 | Severe Storm | IAPAHM | $2.8 million |
| Nov 19, 1996 | DR-1146-NY | Severe Storms, Flooding, Heavy Rains, High Winds | Severe Storm | IAPA | — |
| Jan 12, 1996 | DR-1083-NY | Blizzard of 96 (Severe Snow Storm) | Snowstorm | PA | — |
| Mar 17, 1993 | EM-3107-NY | Severe Blizzard | Snowstorm | PA | — |
| Dec 21, 1992 | DR-974-NY | Coastal Storm, High Tides, Heavy Rain, & Flooding | Flood | IAPA | — |
| Oct 18, 1985 | DR-750-NY | Hurricane Gloria | Hurricane | PA | — |
| Apr 17, 1984 | DR-702-NY | Coastal Storms & Flooding | Flood | IAPA | — |
| Sep 3, 1976 | DR-520-NY | Hurricane Belle | Hurricane | IAPA | — |
| Sep 13, 1971 | DR-311-NY | Severe Storms & Flooding | Flood | PA | — |
| Aug 18, 1965 | DR-204-NY | Water Shortage | Drought | IAPA | — |