Illinois

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Illinois counties

Number of counties: 102
Population: 12,821,813
Table of counties in Illinois with the population for each county, sorted in alphabetical order.
CountyPopulation
Adams County65,878
Alexander County5,488
Bond County16,804
Boone County53,592
Brown County6,330
Bureau County33,338
Calhoun County4,537
Carroll County15,586
Cass County13,058
Champaign County206,583
Christian County34,038
Clark County15,587
Clay County13,313
Clinton County37,048
Coles County47,542
Cook County5,265,398
Crawford County18,825
Cumberland County10,528
De Witt County15,653
DeKalb County100,922
Douglas County19,708
DuPage County934,094
Edgar County16,998
Edwards County6,233
Effingham County34,576
Fayette County21,514
Ford County13,589
Franklin County38,068
Fulton County34,022
Gallatin County5,038
Greene County12,187
Grundy County52,364
Hamilton County8,021
Hancock County17,750
Hardin County3,700
Henderson County6,485
Henry County49,412
Iroquois County27,362
Jackson County53,676
Jasper County9,324
Jefferson County37,362
Jersey County21,533
Jo Daviess County21,995
Johnson County13,238
Kane County518,648
Kankakee County108,104
Kendall County130,757
Knox County50,193
LaSalle County109,986
Lake County714,484
Lawrence County15,465
Lee County34,373
Livingston County35,902
Logan County28,238
Macon County104,331
Macoupin County45,152
Madison County266,112
Marion County37,781
Marshall County11,781
Mason County13,225
Massac County14,280
McDonough County27,743
McHenry County310,749
McLean County171,455
Menard County12,343
Mercer County15,779
Monroe County34,732
Montgomery County28,482
Morgan County33,189
Moultrie County14,634
Ogle County51,787
Peoria County182,439
Perry County21,158
Piatt County16,664
Pike County14,923
Pope County3,820
Pulaski County5,279
Putnam County5,638
Randolph County30,632
Richland County15,876
Rock Island County144,694
Saline County23,869
Sangamon County196,759
Schuyler County6,953
Scott County4,923
Shelby County21,160
St. Clair County258,597
Stark County5,436
Stephenson County44,817
Tazewell County131,977
Union County17,259
Vermilion County74,953
Wabash County11,414
Warren County16,887
Washington County13,827
Wayne County16,250
White County13,959
Whiteside County55,932
Will County696,403
Williamson County67,271
Winnebago County285,471
Woodford County38,571

How many counties are in Illinois?

There are 102 cities in Illinois.