20declarations
14major disasters
6emergencies
1973first on record
2026latest
By hazard
Severe Storm11
Severe Ice Storm3
Biological2
Flood2
Hurricane1
Drought1
By decade
31970s
21990s
82000s
42010s
32020s
Population: 3,535 in April 2020, 3,452 in July 2024 (Census Bureau estimates).
Declarations naming Mercer County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| Aug 3, 2026 | DR-4929-MO | Severe Storms, Straight-Line Winds, Tornadoes, and Flooding | Severe Storm | PA | $1.4 million |
| Mar 26, 2020 | DR-4490-MO | COVID-19 Pandemic | Biological | IHPPAHM | $1.30 billion |
| Mar 13, 2020 | EM-3482-MO | COVID-19 | Biological | PA | — |
| Jul 9, 2019 | DR-4451-MO | Severe Storms, Tornadoes, and Flooding | Severe Storm | IHPPAHM | $111.3 million |
| Oct 31, 2014 | DR-4200-MO | Severe Storms, Tornadoes, Straight-Line Winds, and Flooding | Severe Storm | PAHM | $7.0 million |
| Feb 3, 2011 | EM-3317-MO | Severe Winter Storm | Severe Storm | PA | — |
| Aug 17, 2010 | DR-1934-MO | Severe Storms, Flooding, and Tornadoes | Severe Storm | PAHM | $19.0 million |
| Jan 30, 2009 | EM-3303-MO | Severe Winter Storm | Severe Ice Storm | PA | — |
| Jun 25, 2008 | DR-1773-MO | Severe Storms and Flooding | Severe Storm | IHPPAHM | $39.4 million |
| Dec 27, 2007 | DR-1736-MO | Severe Winter Storms | Severe Ice Storm | PAHM | $27.1 million |
| Dec 12, 2007 | EM-3281-MO | Severe Winter Storms | Severe Ice Storm | PA | — |
| Jun 11, 2007 | DR-1708-MO | Severe Storms and Flooding | Severe Storm | IHPIAPAHM | $10.5 million |
| Sep 10, 2005 | EM-3232-MO | Hurricane Katrina Evacuation | Hurricane | PA | $1.8 million |
| Jun 11, 2004 | DR-1524-MO | Severe Storms, Tornadoes, and Flooding | Severe Storm | IHPIAHM | $1.4 million |
| May 6, 2002 | DR-1412-MO | Severe Storms, Tornadoes and Flooding | Severe Storm | IAPAHM | $40.3 million |
| Jun 2, 1995 | DR-1054-MO | Severe Storms, Tornadoes, Hail, Flooding | Severe Storm | IAPA | — |
| Jul 9, 1993 | DR-995-MO | Severe Storms & Flooding | Flood | IAPA | — |
| Sep 24, 1976 | EM-3017-MO | Drought | Drought | PA | — |
| Nov 1, 1973 | DR-407-MO | Severe Storms & Flooding | Flood | IAPA | — |
| Apr 19, 1973 | DR-372-MO | Heavy Rains, Tornadoes & Flooding | Severe Storm | IAPA | — |