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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
2019-2023 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 22.2 73,645,238 N/A
Illinois N/A 22.1 2,808,879 25 of 52
Woodford County Urban 24.0 9,208 718
Winnebago County Urban 23.6 66,750 866
Williamson County Rural 21.5 14,415 1,784
Will County Urban 24.0 167,605 718
Whiteside County Rural 22.0 12,153 1,567
White County Rural 21.8 2,992 1,646
Wayne County Rural 22.6 3,609 1,288
Washington County Rural 21.0 2,872 1,977
Warren County Rural 22.2 3,684 1,469
Wabash County Rural 21.8 2,438 1,646
Vermilion County Rural 23.5 17,200 900
Union County Rural 21.5 3,643 1,784
Tazewell County Urban 22.3 29,099 1,429
Stephenson County Rural 21.3 9,395 1,876
Stark County Urban 21.7 1,153 1,683
St. Clair County Urban 23.3 59,327 1,001
Shelby County Rural 21.4 4,458 1,821
Scott County Rural 21.4 1,038 1,821
Schuyler County Rural 17.3 1,180 2,869
Sangamon County Urban 22.0 42,980 1,567
Saline County Rural 20.9 4,887 2,008
Rock Island County Urban 22.5 32,223 1,340
Richland County Rural 23.0 3,611 1,127
Randolph County Rural 20.4 6,138 2,187
Putnam County Rural 19.7 1,103 2,378
Pulaski County Rural 20.5 1,040 2,151
Pope County Rural 15.7 589 3,014
Pike County Rural 23.0 3,369 1,127
Piatt County Urban 21.9 3,661 1,606
Perry County Rural 19.5 4,060 2,445
Peoria County Urban 23.9 43,056 750
Ogle County Rural 22.4 11,548 1,385
Moultrie County Rural 25.5 3,694 355
Morgan County Rural 19.3 6,303 2,489
Montgomery County Rural 20.1 5,649 2,274
Monroe County Urban 22.1 7,729 1,518
Mercer County Urban 21.1 3,293 1,936
Menard County Urban 22.1 2,687 1,518
McLean County Urban 21.5 36,679 1,784
McHenry County Urban 23.0 71,656 1,127
McDonough County Rural 17.9 4,853 2,778
Massac County Urban 21.2 2,956 1,907
Mason County Rural 20.6 2,649 2,123
Marshall County Urban 21.2 2,479 1,907
Marion County Rural 23.6 8,800 866
Madison County Urban 21.5 56,984 1,784
Macoupin County Urban 20.7 9,244 2,085
Macon County Urban 22.6 23,234 1,288
Logan County Rural 19.5 5,447 2,445
Livingston County Rural 22.1 7,866 1,518
Lee County Rural 19.9 6,778 2,329
Lawrence County Rural 18.8 2,852 2,608
Lake County Urban 23.6 168,098 866
La Salle County Rural 21.3 23,234 1,876
Knox County Rural 20.2 9,949 2,249
Kendall County Urban 27.5 37,150 165
Kankakee County Urban 23.0 24,569 1,127
Kane County Urban 24.4 125,866 594
Johnson County Rural 17.8 2,374 2,803
Jo Daviess County Rural 18.5 4,062 2,670
Jersey County Urban 19.9 4,256 2,329
Jefferson County Rural 22.4 8,263 1,385
Jasper County Rural 22.4 2,070 1,385
Jackson County Rural 19.0 10,007 2,557
Iroquois County Rural 21.7 5,802 1,683
Henry County Urban 22.0 10,793 1,567
Henderson County Rural 18.9 1,188 2,581
Hardin County Rural 13.6 494 3,102
Hancock County Rural 21.1 3,680 1,936
Hamilton County Rural 22.7 1,812 1,250
Grundy County Urban 24.7 13,072 530
Greene County Rural 21.4 2,534 1,821
Gallatin County Rural 19.8 962 2,359
Fulton County Rural 19.7 6,566 2,378
Franklin County Rural 22.2 8,323 1,469
Ford County Urban 23.3 3,120 1,001
Fayette County Rural 20.5 4,379 2,151
Effingham County Rural 24.2 8,348 647
Edwards County Rural 22.5 1,379 1,340
Edgar County Rural 19.7 3,281 2,378
DuPage County Urban 22.4 207,574 1,385
Douglas County Rural 24.6 4,836 545
DeKalb County Urban 21.8 21,906 1,646
De Witt County Rural 21.5 3,323 1,784
Cumberland County Rural 23.8 2,475 786
Crawford County Rural 20.2 3,756 2,249
Cook County Urban 21.4 1,110,965 1,821
Coles County Rural 18.3 8,521 2,702
Clinton County Urban 21.6 7,966 1,725
Clay County Rural 23.0 3,034 1,127
Clark County Rural 22.3 3,423 1,429
Christian County Rural 20.0 6,734 2,300
Champaign County Urban 19.3 39,730 2,489
Cass County Rural 24.5 3,141 572
Carroll County Rural 18.1 2,827 2,747
Calhoun County Urban 20.4 897 2,187
Bureau County Rural 21.0 6,922 1,977
Brown County Rural 17.4 1,102 2,857
Boone County Urban 24.2 12,886 647
Bond County Urban 18.2 3,029 2,731
Alexander County Urban 21.7 1,092 1,683
Adams County Rural 22.7 14,793 1,250
Notes:
Created by statecancerprofiles.cancer.gov on 07/14/2025 8:07 pm.

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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