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QuickFacts

Randolph County, Illinois; Bureau County, Illinois; Stephenson County, Illinois; Woodford County, Illinois; Niles village, Illinois

QuickFacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more.

Chart

Population estimates, July 1, 2019, (V2019)

0
520,000
1,040,000
1,560,000
2,080,000
2,600,000
3,120,000
3,640,000
4,160,000
4,680,000
5,200,000
Randolph County, Illinois
31,782
Bureau County, Illinois
32,628
Stephenson County, Illinois
44,498
Woodford County, Illinois
38,459
Adams County, Illinois
65,435
Alexander County, Illinois
5,761
Bond County, Illinois
16,426
Boone County, Illinois
53,544
Brown County, Illinois
6,578
Calhoun County, Illinois
4,739
Carroll County, Illinois
14,305
Cass County, Illinois
12,147
Champaign County, Illinois
209,689
Christian County, Illinois
32,304
Clark County, Illinois
15,441
Clay County, Illinois
13,184
Clinton County, Illinois
37,562
Coles County, Illinois
50,621
Cook County, Illinois
5,150,233
Crawford County, Illinois
18,667
Cumberland County, Illinois
10,766
De Witt County, Illinois
15,638
DeKalb County, Illinois
104,897
Douglas County, Illinois
19,465
DuPage County, Illinois
922,921
Edgar County, Illinois
17,161
Edwards County, Illinois
6,395
Effingham County, Illinois
34,008
Fayette County, Illinois
21,336
Ford County, Illinois
12,961
Franklin County, Illinois
38,469
Fulton County, Illinois
34,340
Gallatin County, Illinois
4,828
Greene County, Illinois
12,969
Grundy County, Illinois
51,054
Hamilton County, Illinois
8,116
Hancock County, Illinois
17,708
Hardin County, Illinois
3,821
Henderson County, Illinois
6,646
Henry County, Illinois
48,913
Iroquois County, Illinois
27,114
Jackson County, Illinois
56,750
Jasper County, Illinois
9,610
Jefferson County, Illinois
37,684
Jersey County, Illinois
21,773
Jo Daviess County, Illinois
21,235
Johnson County, Illinois
12,417
Kane County, Illinois
532,403
Kankakee County, Illinois
109,862
Kendall County, Illinois
128,990
Knox County, Illinois
49,699
Lake County, Illinois
696,535
LaSalle County, Illinois
108,669
Lawrence County, Illinois
15,678
Lee County, Illinois
34,096
Livingston County, Illinois
35,648
Logan County, Illinois
28,618
Macon County, Illinois
104,009
Macoupin County, Illinois
44,926
Madison County, Illinois
262,966
Marion County, Illinois
37,205
Marshall County, Illinois
11,438
Mason County, Illinois
13,359
Massac County, Illinois
13,772
McDonough County, Illinois
29,682
McHenry County, Illinois
307,774
McLean County, Illinois
171,517
Menard County, Illinois
12,196
Mercer County, Illinois
15,437
Monroe County, Illinois
34,637
Montgomery County, Illinois
28,414
Morgan County, Illinois
33,658
Moultrie County, Illinois
14,501
Ogle County, Illinois
50,643
Peoria County, Illinois
179,179
Perry County, Illinois
20,916
Piatt County, Illinois
16,344
Pike County, Illinois
15,561
Pope County, Illinois
4,177
Pulaski County, Illinois
5,335
Putnam County, Illinois
5,739
Richland County, Illinois
15,513
Rock Island County, Illinois
141,879
Saline County, Illinois
23,491
Sangamon County, Illinois
194,672
Schuyler County, Illinois
6,768
Scott County, Illinois
4,951
Shelby County, Illinois
21,634
St. Clair County, Illinois
259,686
Stark County, Illinois
5,342
Tazewell County, Illinois
131,803
Union County, Illinois
16,653
Vermilion County, Illinois
75,758
Wabash County, Illinois
11,520
Warren County, Illinois
16,844
Washington County, Illinois
13,887
Wayne County, Illinois
16,215
White County, Illinois
13,537
Whiteside County, Illinois
55,175
Will County, Illinois
690,743
Williamson County, Illinois
66,597
Winnebago County, Illinois
282,572
0
520,000
1,040,000
1,560,000
2,080,000
2,600,000
3,120,000
3,640,000
4,160,000
4,680,000
5,200,000
Value Notes

Estimates are not comparable to other geographic levels due to methodology differences that may exist between different data sources.

Some estimates presented here come from sample data, and thus have sampling errors that may render some apparent differences between geographies statistically indistinguishable. Click the Quick Info icon to the left of each row in TABLE view to learn about sampling error.

The vintage year (e.g., V2019) refers to the final year of the series (2010 thru 2019). Different vintage years of estimates are not comparable.

Fact Notes Value Flags

QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

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