14declarations
10major disasters
4emergencies
1965first on record
2024latest
By hazard
Severe Storm6
Tornado3
Biological2
Hurricane1
Flood1
Snowstorm1
By decade
11960s
11970s
11980s
21990s
42000s
22010s
32020s
Population: 42,528 in April 2020, 42,648 in July 2024 (Census Bureau estimates).
Declarations naming Mercer County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| May 2, 2024 | DR-4777-OH | Tornadoes | Tornado | IHPHM | $4.6 million |
| Mar 31, 2020 | DR-4507-OH | COVID-19 Pandemic | Biological | IHPPAHM | $1.23 billion |
| Mar 13, 2020 | EM-3457-OH | COVID-19 | Biological | PA | — |
| Jun 18, 2019 | DR-4447-OH | Severe Storms, Straight-Line Winds, Tornadoes, Flooding, Landslides, and Mudslide | Tornado | IHPPAHM | $19.4 million |
| Jun 30, 2012 | EM-3346-OH | Severe Storms | Severe Storm | PA | — |
| Sep 13, 2005 | EM-3250-OH | Hurricane Katrina Evacuation | Hurricane | PA | $2.5 million |
| Feb 15, 2005 | DR-1580-OH | Severe Winter Storms, Flooding, and Mudslides | Severe Storm | IHPIAPAHM | $113.7 million |
| Sep 19, 2004 | DR-1556-OH | Severe Storms and Flooding | Severe Storm | IHPIAPAHM | $52.0 million |
| Jul 15, 2003 | DR-1478-OH | Severe Storms and Flooding | Severe Storm | IHPIAHM | $2.0 million |
| Aug 25, 1995 | DR-1065-OH | Severe Storms and Flooding | Severe Storm | IA | — |
| Aug 4, 1992 | DR-951-OH | Severe Storms, Tornadoes & Flooding | Severe Storm | IAPA | — |
| Jun 10, 1989 | DR-831-OH | Severe Storms & Flooding | Flood | IA | — |
| Jan 26, 1978 | EM-3055-OH | Blizzards & Snowstorms | Snowstorm | PA | — |
| Apr 14, 1965 | DR-191-OH | Tornadoes & Severe Storms | Tornado | IAPA | — |