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Illinois / Counties by Population

Illinois Counties by Population

The data is from the US Census. Below are 102 Illinois counties ranked 1 through 102. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

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Rank County Population
1 Cook County 5,203,499
2 DuPage County 929,368
3 Lake County 703,047
4 Will County 689,529
5 Kane County 531,715
6 McHenry County 307,004
7 Winnebago County 285,873
8 Madison County 265,759
9 St. Clair County 262,759
10 Champaign County 208,419
11 Sangamon County 197,499
12 Peoria County 185,006
13 McLean County 172,418
14 Rock Island County 144,784
15 Tazewell County 134,385
16 Kendall County 124,695
17 LaSalle County 110,642
18 Kankakee County 110,008
19 Macon County 106,550
20 DeKalb County 104,528
21 Vermilion County 78,111
22 Williamson County 67,560
23 Adams County 66,578
24 Jackson County 58,870
25 Whiteside County 56,536
26 Boone County 53,503
27 Coles County 52,343
28 Ogle County 51,273
29 Knox County 50,938
30 Grundy County 50,437
31 Henry County 49,280
32 Macoupin County 45,908
33 Stephenson County 45,624
34 Franklin County 39,156
35 Woodford County 39,140
36 Jefferson County 38,460
37 Marion County 38,140
38 Clinton County 37,729
39 Livingston County 36,526
40 Fulton County 35,536
41 Effingham County 34,386
42 Morgan County 34,277
43 Lee County 34,251
44 Monroe County 34,068
45 Bureau County 33,359
46 Christian County 33,309
47 Randolph County 32,621
48 McDonough County 30,996
49 Logan County 29,527
50 Montgomery County 28,952
51 Iroquois County 28,334
52 Saline County 24,307
53 Jersey County 22,025
54 Fayette County 21,789
55 Jo Daviess County 21,770
56 Shelby County 21,717
57 Perry County 21,357
58 Douglas County 19,630
59 Crawford County 19,308
60 Hancock County 18,508
61 Edgar County 17,566
62 Warren County 17,378
63 Union County 17,212
64 Bond County 16,824
65 Piatt County 16,560
66 Wayne County 16,396
67 Lawrence County 16,377
68 De Witt County 16,226
69 Pike County 15,950
70 Clark County 15,938
71 Richland County 15,930
72 Mercer County 15,730
73 Moultrie County 14,827
74 Massac County 14,658
75 Carroll County 14,539
76 White County 14,292
77 Washington County 14,154
78 Ford County 13,575
79 Mason County 13,507
80 Clay County 13,300
81 Greene County 13,093
82 Johnson County 12,902
83 Cass County 12,676
84 Menard County 12,516
85 Marshall County 11,939
86 Wabash County 11,492
87 Cumberland County 10,858
88 Jasper County 9,536
89 Hamilton County 8,061
90 Schuyler County 6,923
91 Henderson County 6,869
92 Brown County 6,762
93 Edwards County 6,523
94 Alexander County 6,478
95 Stark County 5,776
96 Pulaski County 5,619
97 Putnam County 5,611
98 Gallatin County 5,212
99 Scott County 5,053
100 Calhoun County 4,894
101 Pope County 4,157
102 Hardin County 4,024

United States Census Bureau / American FactFinder. "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2016". 2016 Population Estimates Program. Web. March 2017. http://factfinder2.census.gov.

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