Please note that new Connecticut county and township level geographies are not available within the map.

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QuickFacts

Morgan County, Illinois; Spring Valley city, Illinois; Bureau County, Illinois; Niles village, Illinois

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

Chart

Population Estimates, July 1, 2022, (V2022)

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
Cook County, Illinois
5,109,292
DuPage County, Illinois
920,901
Lake County, Illinois
709,150
Will County, Illinois
696,757
Kane County, Illinois
514,182
McHenry County, Illinois
311,747
Winnebago County, Illinois
282,188
Madison County, Illinois
263,864
St. Clair County, Illinois
252,671
Champaign County, Illinois
206,542
Sangamon County, Illinois
194,534
Peoria County, Illinois
178,383
McLean County, Illinois
171,141
Rock Island County, Illinois
141,527
Kendall County, Illinois
137,254
Tazewell County, Illinois
129,911
LaSalle County, Illinois
108,078
Kankakee County, Illinois
106,074
Macon County, Illinois
101,483
DeKalb County, Illinois
100,232
Vermilion County, Illinois
72,337
Williamson County, Illinois
66,695
Adams County, Illinois
64,725
Whiteside County, Illinois
54,658
Boone County, Illinois
53,154
Grundy County, Illinois
53,041
Jackson County, Illinois
52,617
Ogle County, Illinois
51,351
Knox County, Illinois
48,640
Henry County, Illinois
48,419
Coles County, Illinois
46,334
Macoupin County, Illinois
44,245
Stephenson County, Illinois
43,627
Woodford County, Illinois
38,128
Franklin County, Illinois
37,242
Marion County, Illinois
36,914
Clinton County, Illinois
36,909
Jefferson County, Illinois
36,400
Livingston County, Illinois
35,521
Monroe County, Illinois
35,033
Effingham County, Illinois
34,325
Lee County, Illinois
33,848
Christian County, Illinois
33,436
Fulton County, Illinois
33,021
Bureau County, Illinois
32,828
Morgan County, Illinois
32,209
Randolph County, Illinois
30,068
Montgomery County, Illinois
28,020
Logan County, Illinois
27,591
McDonough County, Illinois
26,861
Iroquois County, Illinois
26,473
Saline County, Illinois
23,087
Jo Daviess County, Illinois
21,758
Fayette County, Illinois
21,305
Jersey County, Illinois
21,246
Shelby County, Illinois
20,761
Perry County, Illinois
20,588
Douglas County, Illinois
19,755
Crawford County, Illinois
18,536
Hancock County, Illinois
17,244
Union County, Illinois
16,767
Piatt County, Illinois
16,723
Bond County, Illinois
16,566
Edgar County, Illinois
16,433
Warren County, Illinois
16,354
Wayne County, Illinois
15,872
Carroll County, Illinois
15,529
Mercer County, Illinois
15,504
Richland County, Illinois
15,435
De Witt County, Illinois
15,310
Clark County, Illinois
15,229
Lawrence County, Illinois
14,914
Pike County, Illinois
14,484
Moultrie County, Illinois
14,323
Massac County, Illinois
13,896
Washington County, Illinois
13,643
White County, Illinois
13,614
Johnson County, Illinois
13,381
Ford County, Illinois
13,249
Clay County, Illinois
13,047
Mason County, Illinois
12,748
Cass County, Illinois
12,657
Menard County, Illinois
12,121
Marshall County, Illinois
11,678
Greene County, Illinois
11,651
Wabash County, Illinois
11,087
Cumberland County, Illinois
10,324
Jasper County, Illinois
9,212
Hamilton County, Illinois
7,984
Schuyler County, Illinois
6,746
Brown County, Illinois
6,330
Henderson County, Illinois
6,151
Edwards County, Illinois
6,071
Putnam County, Illinois
5,572
Stark County, Illinois
5,345
Pulaski County, Illinois
4,991
Alexander County, Illinois
4,858
Gallatin County, Illinois
4,855
Scott County, Illinois
4,790
Calhoun County, Illinois
4,360
Pope County, Illinois
3,770
Hardin County, Illinois
3,597
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

Methodology differences may exist between data sources, and so estimates from different sources are not comparable.

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., V2023) refers to the final year of the series (2020 thru 2023). Different vintage years of estimates are not comparable.

In Vintage 2022, as a result of the formal request from the state, Connecticut transitioned from eight counties to nine planning regions. For more details, please see the Vintage 2022 release notes available here: Release Notes.

Users should exercise caution when comparing 2018-2022 ACS 5-year estimates to other ACS estimates. For more information, please visit the 2022 5-year ACS Comparison Guidance page.

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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