20declarations
13major disasters
7emergencies
1972first on record
2024latest
By hazard
Severe Storm5
Flood3
Snowstorm3
Biological2
Hurricane2
Other2
Tropical Storm1
Severe Ice Storm1
Fire1
By decade
11970s
51990s
72000s
32010s
42020s
Population: 112,465 in April 2020, 113,012 in July 2024 (Census Bureau estimates).
Declarations naming Ontario County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| Sep 24, 2024 | DR-4825-NY | Remnants of Tropical Storm Debby | Tropical Storm | PAHM | $89.2 million |
| Jul 22, 2023 | DR-4723-NY | Severe Storms and Flooding | Severe Storm | PAHM | $82.3 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 | — |
| Jul 8, 2014 | DR-4180-NY | Severe Storms and Flooding | Severe Storm | PAHM | $31.9 million |
| Oct 28, 2012 | EM-3351-NY | Hurricane Sandy | Hurricane | PA | — |
| Jun 10, 2011 | DR-1993-NY | Severe Storms, Flooding, Tornadoes, and Straight-Line Winds | Flood | PAHM | $40.4 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 29, 2003 | DR-1486-NY | Severe Storms, Flooding, and Tornadoes | Severe Storm | IHPIAPAHM | $27.0 million |
| Aug 23, 2003 | EM-3186-NY | Power Outage | Other | PA | $5.4 million |
| May 12, 2003 | DR-1467-NY | Ice Storm | Severe Ice Storm | IHPIAPAHM | $46.0 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 |
| Mar 10, 1999 | EM-3138-NY | Snow | Snowstorm | PA | $3.1 million |
| Sep 11, 1998 | DR-1244-NY | Ny - Severe Wx, Sept 7, 1998 | Severe Storm | IAPAHM | $2.8 million |
| Jan 24, 1996 | DR-1095-NY | Severe Storms and Flooding | Flood | IAPA | — |
| Mar 17, 1993 | EM-3107-NY | Severe Blizzard | Snowstorm | PA | — |
| Mar 21, 1991 | DR-898-NY | Severe Winter Storm | Snowstorm | PA | — |
| Jun 23, 1972 | DR-338-NY | Tropical Storm Agnes | Flood | IAPA | — |