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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 descending
2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
 sort by value ascending
People (Age Under 18)
 sort by sample size ascending
Rank within US
(of 3143 counties)
 sort by rank ascending
Illinois N/A 22.1 2,820,477 24 of 52
United States N/A 22.1 73,213,705 N/A
Adams County Rural 22.5 14,756 1,320
Alexander County Urban 22.0 1,156 1,557
Bond County Urban 18.2 3,048 2,732
Boone County Urban 24.1 12,906 641
Brown County Rural 17.6 1,117 2,834
Bureau County Rural 21.0 6,972 1,977
Calhoun County Urban 20.2 903 2,254
Carroll County Rural 18.1 2,818 2,755
Cass County Rural 24.3 3,145 615
Champaign County Urban 18.9 38,942 2,608
Christian County Rural 21.0 7,110 1,985
Clark County Rural 23.0 3,553 1,108
Clay County Rural 22.8 3,022 1,182
Clinton County Urban 21.3 7,894 1,851
Coles County Rural 18.1 8,501 2,757
Cook County Urban 21.5 1,121,812 1,792
Crawford County Rural 20.1 3,757 2,293
Cumberland County Rural 22.5 2,346 1,340
De Witt County Rural 21.1 3,278 1,939
DeKalb County Urban 21.5 21,631 1,787
Douglas County Rural 24.5 4,833 556
DuPage County Urban 22.3 207,472 1,411
Edgar County Rural 19.6 3,310 2,397
Edwards County Rural 23.1 1,427 1,062
Effingham County Rural 23.9 8,268 722
Fayette County Rural 20.2 4,332 2,256
Ford County Urban 22.8 3,080 1,165
Franklin County Rural 22.1 8,357 1,499
Fulton County Rural 19.9 6,696 2,344
Gallatin County Rural 19.1 948 2,551
Greene County Rural 21.5 2,585 1,775
Grundy County Urban 24.7 12,984 518
Hamilton County Rural 21.9 1,753 1,599
Hancock County Rural 20.8 3,661 2,036
Hardin County Rural 13.8 506 3,106
Henderson County Rural 18.8 1,197 2,629
Henry County Urban 22.0 10,790 1,567
Iroquois County Rural 21.5 5,817 1,778
Jackson County Rural 18.5 9,859 2,677
Jasper County Rural 22.5 2,091 1,323
Jefferson County Rural 22.3 8,269 1,394
Jersey County Urban 19.6 4,210 2,407
Jo Daviess County Rural 18.5 4,059 2,683
Johnson County Rural 20.3 2,703 2,211
Kane County Urban 24.6 127,191 533
Kankakee County Urban 22.9 24,649 1,118
Kendall County Urban 27.7 36,742 148
Knox County Rural 20.0 9,937 2,317
La Salle County Rural 21.2 23,231 1,894
Lake County Urban 23.6 167,959 866
Lawrence County Rural 18.9 2,885 2,610
Lee County Rural 19.8 6,764 2,369
Livingston County Rural 21.9 7,824 1,611
Logan County Rural 19.5 5,471 2,440
Macon County Urban 22.4 23,232 1,353
Macoupin County Urban 20.8 9,331 2,047
Madison County Urban 21.4 56,841 1,819
Marion County Rural 23.4 8,792 925
Marshall County Urban 20.7 2,432 2,076
Mason County Rural 20.6 2,696 2,107
Massac County Urban 21.6 3,053 1,735
McDonough County Rural 17.6 4,811 2,843
McHenry County Urban 22.9 71,397 1,117
McLean County Urban 21.3 36,489 1,869
Menard County Urban 22.4 2,757 1,348
Mercer County Urban 20.8 3,266 2,040
Monroe County Urban 22.1 7,713 1,503
Montgomery County Rural 20.0 5,665 2,315
Morgan County Rural 19.1 6,284 2,543
Moultrie County Rural 25.3 3,675 391
Ogle County Rural 22.3 11,503 1,428
Peoria County Urban 23.7 42,973 803
Perry County Rural 19.3 4,060 2,494
Piatt County Urban 22.0 3,669 1,558
Pike County Rural 22.5 3,331 1,302
Pope County Rural 16.2 617 2,990
Pulaski County Rural 20.5 1,061 2,147
Putnam County Rural 19.8 1,113 2,366
Randolph County Rural 20.1 6,122 2,273
Richland County Rural 23.0 3,609 1,111
Rock Island County Urban 22.3 32,089 1,399
Saline County Rural 20.6 4,878 2,109
Sangamon County Urban 22.0 43,115 1,555
Schuyler County Rural 17.6 1,209 2,844
Scott County Rural 21.6 1,059 1,731
Shelby County Rural 21.5 4,534 1,759
St. Clair County Urban 23.3 59,716 989
Stark County Urban 21.2 1,143 1,903
Stephenson County Rural 21.3 9,477 1,868
Tazewell County Urban 22.3 29,305 1,393
Union County Rural 20.8 3,565 2,037
Vermilion County Rural 23.4 17,326 941
Wabash County Rural 21.8 2,472 1,629
Warren County Rural 22.0 3,680 1,561
Washington County Rural 21.1 2,909 1,936
Wayne County Rural 22.5 3,629 1,319
White County Rural 21.6 2,982 1,752
Whiteside County Rural 21.9 12,157 1,608
Will County Urban 24.1 168,067 652
Williamson County Rural 21.6 14,474 1,750
Winnebago County Urban 23.4 66,483 950
Woodford County Urban 23.9 9,189 712
Notes:
Created by statecancerprofiles.cancer.gov on 02/18/2025 4:01 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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