19declarations
10major disasters
9emergencies
1977first on record
2026latest
By hazard
Hurricane7
Tropical Storm2
Biological2
Severe Ice Storm2
Severe Storm2
Flood2
Winter Storm1
Drought1
By decade
11970s
31990s
32000s
62010s
62020s
Population: 9,188 in April 2020, 9,178 in July 2024 (Census Bureau estimates).
Declarations naming Johnson County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| Jan 24, 2026 | EM-3642-GA | Severe Winter Storm | Winter Storm | PA | — |
| Sep 30, 2024 | DR-4830-GA | Hurricane Helene | Hurricane | IHPPAHM | $2.09 billion |
| Sep 26, 2024 | EM-3616-GA | Hurricane Helene | Tropical Storm | PA | — |
| Aug 5, 2024 | EM-3607-GA | Hurricane Debby | Tropical Storm | PA | — |
| Mar 29, 2020 | DR-4501-GA | COVID-19 Pandemic | Biological | IHPPAHM | $1.33 billion |
| Mar 13, 2020 | EM-3464-GA | COVID-19 | Biological | PA | — |
| Oct 14, 2018 | DR-4400-GA | Hurricane Michael | Hurricane | IHPPAHM | $197.9 million |
| Oct 10, 2018 | EM-3406-GA | Hurricane Michael | Hurricane | PA | — |
| Sep 15, 2017 | DR-4338-GA | Hurricane Irma | Hurricane | IHPPAHM | $144.9 million |
| Sep 8, 2017 | EM-3387-GA | Hurricane Irma | Hurricane | PA | — |
| Mar 6, 2014 | DR-4165-GA | Severe Winter Storm | Severe Ice Storm | PAHM | $54.8 million |
| Feb 11, 2014 | EM-3368-GA | Severe Winter Storm | Severe Ice Storm | PA | — |
| May 23, 2008 | DR-1761-GA | Severe Storms and Tornadoes | Severe Storm | IHPPAHM | $15.0 million |
| Sep 5, 2005 | EM-3218-GA | Hurricane Katrina Evacuation | Hurricane | PA | $9.5 million |
| Sep 24, 2004 | DR-1560-GA | Tropical Storm Frances | Hurricane | PAHM | $16.5 million |
| Mar 11, 1998 | DR-1209-GA | Severe Storms and Flooding | Severe Storm | IAPA | — |
| Mar 15, 1991 | DR-897-GA | Severe Storms & Flooding | Flood | IAPA | — |
| Oct 19, 1990 | DR-880-GA | Severe Storms & Flooding | Flood | IAPA | — |
| Jul 20, 1977 | EM-3044-GA | Drought | Drought | PA | — |