Illinois cities by disaster risk

87 cities and communities with 25,000 or more people. Ratings are for the county each city sits in.

Photo: Allen McGregor, CC BY 2.0

City	County	Overall risk	Top hazard	People
Chicago	Cook County	Very High	Inland flooding	2,711,226
Aurora	DuPage County	High	Inland flooding	179,898
Naperville	DuPage County	High	Inland flooding	150,692
Joliet	Will County	High	Inland flooding	150,445
Rockford	Winnebago County	Moderate	Inland flooding	147,521
Elgin	Cook County	Very High	Inland flooding	114,934
Springfield	Sangamon County	Moderate	Inland flooding	113,330
Peoria	Peoria County	Moderate	Inland flooding	112,169
Champaign	Champaign County	Moderate	Inland flooding	89,996
Waukegan	Lake County	High	Inland flooding	89,076
Cicero	Cook County	Very High	Inland flooding	82,797
Bloomington	McLean County	Moderate	Inland flooding	78,907
Schaumburg	Cook County	Very High	Inland flooding	76,868
Evanston	Cook County	Very High	Inland flooding	76,340
Arlington Heights	Cook County	Very High	Inland flooding	76,005
Bolingbrook	DuPage County	High	Inland flooding	74,096
Decatur	Macon County	Moderate	Inland flooding	69,815
Palatine	Cook County	Very High	Inland flooding	66,293
Skokie	Cook County	Very High	Inland flooding	66,219
Des Plaines	Cook County	Very High	Inland flooding	59,156
Orland Park	Cook County	Very High	Inland flooding	57,916
Oak Lawn	Cook County	Very High	Inland flooding	56,861
Berwyn	Cook County	Very High	Inland flooding	55,595
Mount Prospect	Cook County	Very High	Inland flooding	55,472
Tinley Park	Cook County	Very High	Inland flooding	54,842
Normal	McLean County	Moderate	Inland flooding	53,569
Wheaton	DuPage County	High	Inland flooding	53,557
Oak Park	Cook County	Very High	Inland flooding	53,292
Hoffman Estates	Cook County	Very High	Inland flooding	51,175
Downers Grove	DuPage County	High	Inland flooding	50,054
Glenview	Cook County	Very High	Inland flooding	47,752
Plainfield	Will County	High	Inland flooding	46,708
Elmhurst	Cook County	Very High	Inland flooding	45,671
Lombard	DuPage County	High	Inland flooding	43,619
Buffalo Grove	Cook County	Very High	Inland flooding	42,891
Moline	Rock Island County	Moderate	Inland flooding	42,197
Belleville	St. Clair County	High	Inland flooding	41,370
Romeoville	Will County	High	Inland flooding	41,152
Crystal Lake	McHenry County	Moderate	Inland flooding	40,579
Bartlett	Cook County	Very High	Inland flooding	40,501
DeKalb	DeKalb County	Low	Inland flooding	40,443
Carol Stream	DuPage County	High	Inland flooding	39,460
Urbana	Champaign County	Moderate	Inland flooding	39,341
Quincy	Adams County	Low	Inland flooding	39,109
Streamwood	Cook County	Very High	Inland flooding	39,001
Park Ridge	Cook County	Very High	Inland flooding	38,667
Wheeling	Cook County	Very High	Inland flooding	38,433
Carpentersville	Kane County	High	Inland flooding	37,346
Hanover Park	Cook County	Very High	Inland flooding	36,732
Oswego	Will County	High	Inland flooding	36,375
Rock Island	Rock Island County	Moderate	Inland flooding	36,151
Addison	DuPage County	High	Inland flooding	35,489
Calumet City	Cook County	Very High	Inland flooding	35,100
Northbrook	Cook County	Very High	Inland flooding	34,585
Woodridge	Cook County	Very High	Inland flooding	33,941
St. Charles	DuPage County	High	Inland flooding	32,854
Glendale Heights	DuPage County	High	Inland flooding	32,808
O'Fallon	St. Clair County	High	Inland flooding	32,262
Elk Grove Village	Cook County	Very High	Inland flooding	31,987
Mundelein	Lake County	High	Inland flooding	31,915
Pekin	Peoria County	Moderate	Inland flooding	31,781
North Chicago	Lake County	High	Inland flooding	30,643
Gurnee	Lake County	High	Inland flooding	30,510
Highland Park	Lake County	High	Inland flooding	30,398
Algonquin	Kane County	High	Inland flooding	30,067
Niles	Cook County	Very High	Inland flooding	30,064
Galesburg	Knox County	Low	Inland flooding	29,481
Lake in the Hills	McHenry County	Moderate	Inland flooding	28,800
Burbank	Cook County	Very High	Inland flooding	28,739
Danville	Vermilion County	Low	Inland flooding	28,595
Glen Ellyn	DuPage County	High	Inland flooding	28,390
Lansing	Cook County	Very High	Inland flooding	28,284
McHenry	McHenry County	Moderate	Inland flooding	28,074
New Lenox	Will County	High	Inland flooding	28,006
Huntley	Kane County	High	Inland flooding	28,005
Wilmette	Cook County	Very High	Inland flooding	27,503
Batavia	DuPage County	High	Inland flooding	27,151
Round Lake Beach	Lake County	High	Inland flooding	27,079
Vernon Hills	Lake County	High	Inland flooding	26,876
Oak Forest	Cook County	Very High	Inland flooding	26,805
Chicago Heights	Cook County	Very High	Inland flooding	26,736
Granite City	Madison County	Moderate	Inland flooding	26,549
Edwardsville	Madison County	Moderate	Inland flooding	26,474
Lockport	Will County	High	Inland flooding	26,409
Woodstock	McHenry County	Moderate	Inland flooding	26,147
West Chicago	DuPage County	High	Inland flooding	25,395
Alton	Madison County	Moderate	Inland flooding	25,279