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Demographics Table

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Demographic Data Report for Illinois by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2018-2022 American Community Survey 5-Year Data
Sorted by Name

County
 sort alphabetically by name ascending
2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
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People (Age Under 18)
 sort by sample size ascending
Rank within US
(of 3143 counties)
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United States N/A 22.1 73,213,705 N/A
Illinois N/A 22.1 2,820,477 24 of 52
Woodford County Urban 23.9 9,189 712
Winnebago County Urban 23.4 66,483 950
Williamson County Rural 21.6 14,474 1,750
Will County Urban 24.1 168,067 652
Whiteside County Rural 21.9 12,157 1,608
White County Rural 21.6 2,982 1,752
Wayne County Rural 22.5 3,629 1,319
Washington County Rural 21.1 2,909 1,936
Warren County Rural 22.0 3,680 1,561
Wabash County Rural 21.8 2,472 1,629
Vermilion County Rural 23.4 17,326 941
Union County Rural 20.8 3,565 2,037
Tazewell County Urban 22.3 29,305 1,393
Stephenson County Rural 21.3 9,477 1,868
Stark County Urban 21.2 1,143 1,903
St. Clair County Urban 23.3 59,716 989
Shelby County Rural 21.5 4,534 1,759
Scott County Rural 21.6 1,059 1,731
Schuyler County Rural 17.6 1,209 2,844
Sangamon County Urban 22.0 43,115 1,555
Saline County Rural 20.6 4,878 2,109
Rock Island County Urban 22.3 32,089 1,399
Richland County Rural 23.0 3,609 1,111
Randolph County Rural 20.1 6,122 2,273
Putnam County Rural 19.8 1,113 2,366
Pulaski County Rural 20.5 1,061 2,147
Pope County Rural 16.2 617 2,990
Pike County Rural 22.5 3,331 1,302
Piatt County Urban 22.0 3,669 1,558
Perry County Rural 19.3 4,060 2,494
Peoria County Urban 23.7 42,973 803
Ogle County Rural 22.3 11,503 1,428
Moultrie County Rural 25.3 3,675 391
Morgan County Rural 19.1 6,284 2,543
Montgomery County Rural 20.0 5,665 2,315
Monroe County Urban 22.1 7,713 1,503
Mercer County Urban 20.8 3,266 2,040
Menard County Urban 22.4 2,757 1,348
McLean County Urban 21.3 36,489 1,869
McHenry County Urban 22.9 71,397 1,117
McDonough County Rural 17.6 4,811 2,843
Massac County Urban 21.6 3,053 1,735
Mason County Rural 20.6 2,696 2,107
Marshall County Urban 20.7 2,432 2,076
Marion County Rural 23.4 8,792 925
Madison County Urban 21.4 56,841 1,819
Macoupin County Urban 20.8 9,331 2,047
Macon County Urban 22.4 23,232 1,353
Logan County Rural 19.5 5,471 2,440
Livingston County Rural 21.9 7,824 1,611
Lee County Rural 19.8 6,764 2,369
Lawrence County Rural 18.9 2,885 2,610
Lake County Urban 23.6 167,959 866
La Salle County Rural 21.2 23,231 1,894
Knox County Rural 20.0 9,937 2,317
Kendall County Urban 27.7 36,742 148
Kankakee County Urban 22.9 24,649 1,118
Kane County Urban 24.6 127,191 533
Johnson County Rural 20.3 2,703 2,211
Jo Daviess County Rural 18.5 4,059 2,683
Jersey County Urban 19.6 4,210 2,407
Jefferson County Rural 22.3 8,269 1,394
Jasper County Rural 22.5 2,091 1,323
Jackson County Rural 18.5 9,859 2,677
Iroquois County Rural 21.5 5,817 1,778
Henry County Urban 22.0 10,790 1,567
Henderson County Rural 18.8 1,197 2,629
Hardin County Rural 13.8 506 3,106
Hancock County Rural 20.8 3,661 2,036
Hamilton County Rural 21.9 1,753 1,599
Grundy County Urban 24.7 12,984 518
Greene County Rural 21.5 2,585 1,775
Gallatin County Rural 19.1 948 2,551
Fulton County Rural 19.9 6,696 2,344
Franklin County Rural 22.1 8,357 1,499
Ford County Urban 22.8 3,080 1,165
Fayette County Rural 20.2 4,332 2,256
Effingham County Rural 23.9 8,268 722
Edwards County Rural 23.1 1,427 1,062
Edgar County Rural 19.6 3,310 2,397
DuPage County Urban 22.3 207,472 1,411
Douglas County Rural 24.5 4,833 556
DeKalb County Urban 21.5 21,631 1,787
De Witt County Rural 21.1 3,278 1,939
Cumberland County Rural 22.5 2,346 1,340
Crawford County Rural 20.1 3,757 2,293
Cook County Urban 21.5 1,121,812 1,792
Coles County Rural 18.1 8,501 2,757
Clinton County Urban 21.3 7,894 1,851
Clay County Rural 22.8 3,022 1,182
Clark County Rural 23.0 3,553 1,108
Christian County Rural 21.0 7,110 1,985
Champaign County Urban 18.9 38,942 2,608
Cass County Rural 24.3 3,145 615
Carroll County Rural 18.1 2,818 2,755
Calhoun County Urban 20.2 903 2,254
Bureau County Rural 21.0 6,972 1,977
Brown County Rural 17.6 1,117 2,834
Boone County Urban 24.1 12,906 641
Bond County Urban 18.2 3,048 2,732
Alexander County Urban 22.0 1,156 1,557
Adams County Rural 22.5 14,756 1,320
Notes:
Created by statecancerprofiles.cancer.gov on 02/11/2025 12:12 am.

Φ Rural-Urban Continuum Codes provided by the USDA.

Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.

Data for United States does not include Puerto Rico.

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