By hazard
Links open the declarations for that hazard in Illinois where there are five or more.
Counties named most often
| County | Declarations | Population 2024 |
|---|---|---|
| Calhoun County | 25 | 4,224 |
| Pike County | 25 | 14,258 |
| Cook County | 24 | 5,182,617 |
| Adams County | 21 | 64,109 |
| Cass County | 21 | 12,713 |
| Fulton County | 20 | 32,510 |
| Jersey County | 20 | 21,150 |
| LaSalle County | 20 | 108,390 |
| Monroe County | 20 | 34,969 |
| Greene County | 19 | 11,417 |
| Hancock County | 19 | 17,008 |
| St. Clair County | 19 | 251,149 |
| Will County | 19 | 708,583 |
| Winnebago County | 19 | 283,790 |
| Mason County | 18 | 12,543 |
All declarations
68 declarations
| Declared | Number | Title | Hazard | Areas | Programs | Federal aid |
|---|---|---|---|---|---|---|
| Jun 22, 1957 | DR-78-IL | Floods | Flood | statewide | IAPAHM | — |
| May 27, 1961 | DR-115-IL | Floods & Tornadoes | Flood | statewide | IAPAHM | — |
| Apr 25, 1965 | DR-194-IL | Tornadoes, Severe Storms & Flooding | Tornado | 10 | IAPA | — |
| Apr 25, 1967 | DR-227-IL | Tornadoes | Tornado | 9 | IAPA | — |
| Jun 5, 1968 | DR-242-IL | Tornadoes, Severe Storms & Flooding | Tornado | 8 | IAPA | — |
| Jun 6, 1969 | DR-262-IL | Flooding | Flood | 10 | IAPA | — |
| Aug 30, 1969 | DR-276-IL | Heavy Rains & Flooding | Flood | 15 | IAPA | — |
| Sep 4, 1972 | DR-351-IL | Severe Storms & Flooding | Flood | 3 | IAPA | — |
| Apr 26, 1973 | DR-373-IL | Severe Storms & Flooding | Flood | 52 | IAPA | — |
| Apr 11, 1974 | DR-427-IL | Tornadoes | Tornado | 4 | IAPA | — |
| Jun 10, 1974 | DR-438-IL | Severe Storms & Flooding | Flood | 46 | IAPA | — |
| Jul 25, 1975 | DR-478-IL | Tornado | Tornado | 1 | IAPA | — |
| Jun 18, 1976 | DR-509-IL | Severe Storms, Tornadoes & Flooding | Severe Storm | 2 | IAPA | — |
| Apr 30, 1979 | DR-583-IL | Severe Storms & Flooding | Flood | 29 | IAPA | — |
| Jun 30, 1981 | DR-643-IL | Severe Storms, Flooding & Tornadoes | Severe Storm | 4 | IAPA | — |
| Jun 5, 1982 | DR-660-IL | Severe Storms & Tornadoes | Tornado | 2 | IAPA | — |
| Dec 13, 1982 | DR-674-IL | Severe Storms, Tornadoes & Flooding | Severe Storm | 23 | IAPA | — |
| Jun 6, 1983 | DR-684-IL | Severe Storms, Tornadoes & Flooding | Severe Storm | 14 | PA | — |
| Mar 29, 1985 | DR-735-IL | Severe Storms & Flooding | Flood | 23 | IAPA | — |
| Oct 7, 1986 | DR-776-IL | Severe Storms & Flooding | Flood | 8 | IAPA | — |
| Aug 21, 1987 | DR-798-IL | Severe Storms & Flooding | Flood | 3 | IAPA | — |
| Jan 13, 1989 | DR-819-IL | Severe Storms & Tornadoes | Tornado | 5 | IAPA | — |
| Mar 6, 1990 | DR-860-IL | Severe Ice Storm | Severe Ice Storm | 10 | PA | — |
| Jun 22, 1990 | DR-871-IL | Severe Storms, Tornadoes & Flooding | Severe Storm | 16 | IAPA | — |
| Aug 29, 1990 | DR-878-IL | Tornadoes | Tornado | 3 | IAPA | — |
| Apr 15, 1992 | DR-941-IL | Flooding | Flood | 1 | IAPA | — |
| Jul 9, 1993 | DR-997-IL | Severe Storms & Flooding | Flood | 39 | IAPA | — |
| Apr 26, 1994 | DR-1025-IL | Severe Storms and Flooding | Severe Storm | 16 | IAPA | — |
| May 30, 1995 | DR-1053-IL | Severe Storms and Flooding | Severe Storm | 19 | IAPA | — |
| Apr 23, 1996 | DR-1110-IL | Severe Storms and Tornadoes | Severe Storm | 5 | IAPA | — |
| May 6, 1996 | DR-1112-IL | Severe Storms and Flooding | Severe Storm | 28 | IAPA | — |
| Jul 25, 1996 | DR-1129-IL | Severe Storms and Flooding | Severe Storm | 11 | IAPA | — |
| Mar 21, 1997 | DR-1170-IL | Severe Storms and Flooding | Severe Storm | 6 | IAPA | — |
| Sep 17, 1997 | DR-1188-IL | Severe Storms and Flooding | Severe Storm | 1 | IA | — |
| May 28, 1999 | DR-1278-IL | Severe Storms and Flash Flooding | Severe Storm | 1 | IAPAHM | $615,189 |
| May 9, 2001 | DR-1368-IL | Flooding | Flood | 10 | IAPAHM | $6.5 million |
| May 21, 2002 | DR-1416-IL | Severe Storms, Tornadoes and Flooding | Tornado | 68 | IAPAHM | $17.7 million |
| May 15, 2003 | DR-1469-IL | Severe Storms, Tornadoes, and Flooding | Severe Storm | 16 | IHPIAHM | $1.7 million |
| Apr 23, 2004 | DR-1513-IL | Severe Storms and Tornadoes | Severe Storm | 4 | IHPIAPAHM | $2.8 million |
| Mar 28, 2006 | DR-1633-IL | Tornadoes and Severe Storms | Severe Storm | 6 | IHPIAPAHM | $12.0 million |
| Feb 9, 2007 | DR-1681-IL | Severe Winter Storm | Severe Ice Storm | 18 | PAHM | $24.8 million |
| Aug 30, 2007 | DR-1722-IL | Severe Storms and Flooding | Severe Storm | 2 | IHPIAHM | $1.8 million |
| Sep 25, 2007 | DR-1729-IL | Severe Storms and Flooding | Severe Storm | 9 | IHPIAPAHM | $23.9 million |
| Mar 7, 2008 | DR-1747-IL | Severe Storms and Flooding | Severe Storm | 2 | IHPHM | $5.3 million |
| Jun 24, 2008 | DR-1771-IL | Severe Storms and Flooding | Severe Storm | 25 | IHPPAHM | $69.5 million |
| Oct 3, 2008 | DR-1800-IL | Severe Storms and Flooding | Severe Storm | 16 | IHPPAHM | $103.4 million |
| Mar 2, 2009 | DR-1826-IL | Severe Winter Storm | Severe Storm | 9 | PAHM | $12.2 million |
| Jul 2, 2009 | DR-1850-IL | Severe Storms, Flooding, and Tornadoes | Severe Storm | 8 | PAHM | $16.4 million |
| Aug 19, 2010 | DR-1935-IL | Severe Storms and Flooding | Severe Storm | 11 | IHPPAHM | $426.8 million |
| Mar 17, 2011 | DR-1960-IL | Severe Winter Storm and Snowstorm | Snowstorm | 65 | PAHM | $52.8 million |
| Jun 7, 2011 | DR-1991-IL | Severe Storms and Flooding | Severe Storm | 21 | IHPPAHM | $30.8 million |
| Jan 16, 1979 | EM-3068-IL | Blizzards & Snowstorms | Snowstorm | 24 | PA | — |
| Jan 8, 1999 | EM-3134-IL | Il-Winter Storm 1/1/99 | Snowstorm | 52 | PA | $25.5 million |
| Jan 17, 2001 | EM-3161-IL | Illinois Winter Snow Storms | Snowstorm | 27 | PA | $16.5 million |
| Feb 1, 2005 | EM-3199-IL | Record/Near Record Snow | Snowstorm | 16 | PA | $878,191 |
| Sep 7, 2005 | EM-3230-IL | Hurricane Katrina Evacuation | Hurricane | 102 | PA | $4.4 million |
| Dec 29, 2006 | EM-3269-IL | Snow | Snowstorm | 26 | PA | $6.2 million |
| Mar 13, 2008 | EM-3283-IL | Record Snow and Near Record Snow | Snowstorm | 8 | PA | $5.0 million |
| Mar 13, 2020 | EM-3435-IL | COVID-19 | Biological | 102 | PA | — |
| Dec 13, 2021 | EM-3577-IL | Severe Storms, Straight-Line Winds, and Tornadoes | Tornado | 14 | PA | $252,457 |
| May 10, 2013 | DR-4116-IL | Severe Storms, Straight-Line Winds, and Flooding | Flood | 47 | IHPPAHM | $226.7 million |
| Nov 26, 2013 | DR-4157-IL | Severe Storms, Straight-Line Winds, and Tornadoes | Tornado | 15 | IHPHM | $3.1 million |
| Sep 19, 2019 | DR-4461-IL | Severe Storms and Flooding | Flood | 28 | PAHM | $72.1 million |
| Mar 26, 2020 | DR-4489-IL | COVID-19 Pandemic | Biological | 102 | IHPPAHM | $2.33 billion |
| Oct 14, 2022 | DR-4676-IL | Severe Storm and Flooding | Flood | 1 | IHPHM | $28.2 million |
| Aug 15, 2023 | DR-4728-IL | Severe Storms and Flooding | Severe Storm | 22 | IHPPAHM | $353.1 million |
| Nov 20, 2023 | DR-4749-IL | Severe Storms and Flooding | Flood | 1 | IHPHM | $64.5 million |
| Sep 20, 2024 | DR-4819-IL | Severe Storms, Tornadoes, Straight-Line Winds, and Floodng | Flood | 7 | IHPHM | $212.2 million |
* Individual Assistance approved plus Public Assistance and Hazard Mitigation obligated, for declarations where OpenFEMA publishes totals; as reported on October 29, 2026. Programs: IHP — Individuals and Households, IA — Individual Assistance, PA — Public Assistance, HM — Hazard Mitigation.