26declarations
17major disasters
9emergencies
1972first on record
2026latest
By hazard
Severe Storm9
Flood5
Severe Ice Storm4
Hurricane2
Biological2
Tornado2
Winter Storm1
Drought1
By decade
31970s
31980s
11990s
82000s
62010s
52020s
Population: 25,750 in April 2020, 26,172 in July 2024 (Census Bureau estimates).
Declarations naming Johnson County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| Jan 24, 2026 | EM-3636-AR | Severe Winter Storm | Winter Storm | PA | — |
| Apr 5, 2025 | EM-3627-AR | Severe Storms, Tornadoes, and Flooding | Severe Storm | PA | — |
| Aug 27, 2020 | EM-3541-AR | Hurricane Laura | Hurricane | PA | — |
| Apr 3, 2020 | DR-4518-AR | COVID-19 Pandemic | Biological | IHPPAHM | $284.4 million |
| Mar 13, 2020 | EM-3461-AR | COVID-19 | Biological | PA | — |
| Jun 8, 2019 | DR-4441-AR | Severe Storms and Flooding | Flood | IHPPAHM | $70.0 million |
| May 30, 2019 | EM-3414-AR | Severe Storms and Flooding | Flood | PA | — |
| Jun 26, 2015 | DR-4226-AR | Severe Storms, Tornadoes, Straight-Line Winds, and Flooding | Severe Storm | IHPPAHM | $14.3 million |
| Jan 6, 2014 | DR-4160-AR | Severe Winter Storm | Severe Ice Storm | PAHM | $6.3 million |
| Jul 8, 2011 | DR-4000-AR | Severe Storms, Tornadoes, and Flooding | Severe Storm | IHPPAHM | $4.5 million |
| May 2, 2011 | DR-1975-AR | Severe Storms, Tornadoes, and Associated Flooding | Severe Storm | IHPPAHM | $83.1 million |
| Dec 3, 2009 | DR-1861-AR | Severe Storms, Tornadoes, and Flooding | Severe Storm | PAHM | $16.5 million |
| Feb 6, 2009 | DR-1819-AR | Severe Winter Storm | Severe Storm | PAHM | $250.8 million |
| Jan 28, 2009 | EM-3301-AR | Severe Winter Storm | Severe Ice Storm | PA | — |
| Mar 26, 2008 | DR-1751-AR | Severe Storms, Tornadoes, and Flooding | Severe Storm | IHPPAHM | $58.7 million |
| Sep 2, 2005 | EM-3215-AR | Hurricane Katrina Evacuation | Hurricane | PA | $45.1 million |
| May 7, 2004 | DR-1516-AR | Sever Storms, Flooding and Landslides | Severe Storm | PAHM | $7.5 million |
| Dec 29, 2000 | DR-1354-AR | Severe Winter Ice Storm | Severe Ice Storm | IAPAHM | $200.0 million |
| Dec 28, 2000 | EM-3159-AR | Severe Winter Ice Storm | Severe Ice Storm | PA | — |
| May 15, 1990 | DR-865-AR | Severe Storms & Flooding | Flood | IAPA | — |
| Nov 23, 1988 | DR-817-AR | Severe Storms & Tornadoes | Tornado | IA | — |
| Dec 13, 1982 | DR-673-AR | Severe Storms, Tornadoes & Flooding | Severe Storm | IAPA | — |
| Apr 16, 1980 | DR-617-AR | Severe Storms & Tornadoes | Tornado | IA | — |
| Dec 3, 1976 | EM-3019-AR | Drought | Drought | PA | — |
| Jun 8, 1974 | DR-437-AR | Severe Storms & Flooding | Flood | IAPA | — |
| Jan 27, 1972 | DR-321-AR | Severe Storms & Flooding | Flood | PA | — |