9declarations
6major disasters
3emergencies
1982first on record
2020latest
By hazard
Severe Storm3
Biological2
Tornado2
Hurricane1
Snowstorm1
By decade
11980s
11990s
42000s
12010s
22020s
Population: 67,154 in April 2020, 67,064 in July 2024 (Census Bureau estimates).
Declarations naming Williamson County
| Declared | Number | Title | Hazard | Programs | Federal aid |
|---|---|---|---|---|---|
| Mar 26, 2020 | DR-4489-IL | COVID-19 Pandemic | Biological | IHPPAHM | $2.33 billion |
| Mar 13, 2020 | EM-3435-IL | COVID-19 | Biological | PA | — |
| Jun 7, 2011 | DR-1991-IL | Severe Storms and Flooding | Severe Storm | IHPPAHM | $30.8 million |
| Jul 2, 2009 | DR-1850-IL | Severe Storms, Flooding, and Tornadoes | Severe Storm | PAHM | $16.4 million |
| Sep 7, 2005 | EM-3230-IL | Hurricane Katrina Evacuation | Hurricane | PA | $4.4 million |
| Feb 1, 2005 | EM-3199-IL | Record/Near Record Snow | Snowstorm | PA | $878,191 |
| May 21, 2002 | DR-1416-IL | Severe Storms, Tornadoes and Flooding | Tornado | IAPAHM | $17.7 million |
| May 6, 1996 | DR-1112-IL | Severe Storms and Flooding | Severe Storm | IAPA | — |
| Jun 5, 1982 | DR-660-IL | Severe Storms & Tornadoes | Tornado | IAPA | — |