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102 counties

Illinois: declarations by county

Counties, parishes, boroughs and county-equivalents of Illinois named in at least one federal declaration. Statewide declarations are counted on the state page, not here.

102 counties
CountyDeclarationsMajor disastersMost common hazardLatestPopulation 2024
Calhoun County2522Flood20234,224
Pike County2520Flood202314,258
Cook County2419Flood20245,182,617
Adams County2117Flood202064,109
Cass County2117Flood202112,713
Fulton County2015Flood202432,510
Jersey County2017Flood202121,150
LaSalle County2014Flood2020108,390
Monroe County2018Flood202334,969
Greene County1916Severe Storm202011,417
Hancock County1915Flood202317,008
St. Clair County1917Flood2024251,149
Will County1914Severe Storm2024708,583
Winnebago County1912Snowstorm2024283,790
Mason County1814Flood202012,543
Schuyler County1815Flood20206,750
Scott County1814Severe Storm20234,880
Alexander County1715Severe Storm20204,594
Bureau County1711Flood202032,486
Lake County1711Snowstorm2020718,604
Morgan County1713Flood202332,618
Randolph County1715Severe Storm202029,903
Brown County1612Flood20206,307
Carroll County1612Flood202015,444
DuPage County1611Flood2020937,142
Henderson County1612Flood20206,048
Henry County1610Flood202448,177
Jo Daviess County1612Flood202021,528
Kane County1611Flood2020520,997
Madison County1613Flood2021263,017
McHenry County169Snowstorm2020315,959
Grundy County1510Flood202053,835
Jackson County1512Flood202053,199
Mercer County1511Flood202015,292
Peoria County159Flood2020179,630
Rock Island County1513Flood2020142,731
Tazewell County1511Flood2020129,821
Union County1512Flood202016,886
Marshall County148Snowstorm202011,552
Ogle County148Snowstorm202051,345
Pulaski County1412Severe Storm20204,879
Stephenson County149Flood202043,088
Whiteside County1411Flood202054,657
Woodford County1411Flood202038,290
Douglas County1310Severe Storm202319,824
Kendall County137Snowstorm2020143,171
Champaign County129Tornado2020212,374
DeKalb County128Flood2020101,335
Logan County129Severe Storm202327,518
Massac County129Severe Storm202013,627
Menard County126Snowstorm202111,963
Pope County129Severe Storm20203,703
Sangamon County129Severe Storm2023194,345
Vermilion County129Tornado202371,106
Boone County115Snowstorm202053,313
De Witt County117Severe Storm202315,319
Gallatin County118Severe Storm20204,690
Knox County117Flood202048,716
Livingston County117Snowstorm202035,375
Macon County118Severe Storm2023100,737
McDonough County116Snowstorm202326,662
McLean County117Snowstorm2020172,069
Putnam County116Snowstorm20205,633
Clark County108Flood202315,076
Franklin County107Severe Storm202037,033
Hamilton County107Severe Storm20207,818
Lee County106Flood202033,544
Moultrie County106Severe Storm202314,365
Shelby County106Tornado202120,542
Wabash County107Tornado202010,979
White County107Severe Storm202013,395
Coles County96Severe Storm202346,423
Crawford County97Biological202018,388
Cumberland County97Severe Storm202310,305
Edgar County97Severe Storm202316,398
Iroquois County95Biological202026,067
Jasper County97Severe Storm20209,092
Lawrence County96Severe Storm202014,801
Macoupin County96Severe Storm202143,895
Piatt County96Biological202016,628
Saline County96Severe Storm202022,826
Warren County96Severe Storm202316,217
Washington County97Severe Storm202413,535
Williamson County96Severe Storm202067,064
Christian County85Biological202333,247
Fayette County85Tornado202121,157
Ford County84Snowstorm202013,451
Hardin County85Severe Storm20203,550
Marion County86Severe Storm202036,437
Richland County85Biological202015,362
Stark County83Snowstorm20205,272
Wayne County86Tornado202015,928
Bond County74Tornado202116,576
Clinton County75Biological202037,087
Edwards County74Biological20205,984
Effingham County74Tornado202134,602
Johnson County74Biological202013,320
Kankakee County73Biological2020106,410
Montgomery County74Tornado202127,615
Perry County75Biological202020,272
Clay County53Biological202012,821
Jefferson County53Biological202036,107