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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 Count

County
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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 descending
Rank within US
(of 3143 counties)
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Illinois N/A 22.1 2,808,879 25 of 52
United States N/A 22.2 73,645,238 N/A
Hardin County Rural 13.6 494 3,102
Pope County Rural 15.7 589 3,014
Calhoun County Urban 20.4 897 2,187
Gallatin County Rural 19.8 962 2,359
Scott County Rural 21.4 1,038 1,821
Pulaski County Rural 20.5 1,040 2,151
Alexander County Urban 21.7 1,092 1,683
Brown County Rural 17.4 1,102 2,857
Putnam County Rural 19.7 1,103 2,378
Stark County Urban 21.7 1,153 1,683
Schuyler County Rural 17.3 1,180 2,869
Henderson County Rural 18.9 1,188 2,581
Edwards County Rural 22.5 1,379 1,340
Hamilton County Rural 22.7 1,812 1,250
Jasper County Rural 22.4 2,070 1,385
Johnson County Rural 17.8 2,374 2,803
Wabash County Rural 21.8 2,438 1,646
Cumberland County Rural 23.8 2,475 786
Marshall County Urban 21.2 2,479 1,907
Greene County Rural 21.4 2,534 1,821
Mason County Rural 20.6 2,649 2,123
Menard County Urban 22.1 2,687 1,518
Carroll County Rural 18.1 2,827 2,747
Lawrence County Rural 18.8 2,852 2,608
Washington County Rural 21.0 2,872 1,977
Massac County Urban 21.2 2,956 1,907
White County Rural 21.8 2,992 1,646
Bond County Urban 18.2 3,029 2,731
Clay County Rural 23.0 3,034 1,127
Ford County Urban 23.3 3,120 1,001
Cass County Rural 24.5 3,141 572
Edgar County Rural 19.7 3,281 2,378
Mercer County Urban 21.1 3,293 1,936
De Witt County Rural 21.5 3,323 1,784
Pike County Rural 23.0 3,369 1,127
Clark County Rural 22.3 3,423 1,429
Wayne County Rural 22.6 3,609 1,288
Richland County Rural 23.0 3,611 1,127
Union County Rural 21.5 3,643 1,784
Piatt County Urban 21.9 3,661 1,606
Hancock County Rural 21.1 3,680 1,936
Warren County Rural 22.2 3,684 1,469
Moultrie County Rural 25.5 3,694 355
Crawford County Rural 20.2 3,756 2,249
Perry County Rural 19.5 4,060 2,445
Jo Daviess County Rural 18.5 4,062 2,670
Jersey County Urban 19.9 4,256 2,329
Fayette County Rural 20.5 4,379 2,151
Shelby County Rural 21.4 4,458 1,821
Douglas County Rural 24.6 4,836 545
McDonough County Rural 17.9 4,853 2,778
Saline County Rural 20.9 4,887 2,008
Logan County Rural 19.5 5,447 2,445
Montgomery County Rural 20.1 5,649 2,274
Iroquois County Rural 21.7 5,802 1,683
Randolph County Rural 20.4 6,138 2,187
Morgan County Rural 19.3 6,303 2,489
Fulton County Rural 19.7 6,566 2,378
Christian County Rural 20.0 6,734 2,300
Lee County Rural 19.9 6,778 2,329
Bureau County Rural 21.0 6,922 1,977
Monroe County Urban 22.1 7,729 1,518
Livingston County Rural 22.1 7,866 1,518
Clinton County Urban 21.6 7,966 1,725
Jefferson County Rural 22.4 8,263 1,385
Franklin County Rural 22.2 8,323 1,469
Effingham County Rural 24.2 8,348 647
Coles County Rural 18.3 8,521 2,702
Marion County Rural 23.6 8,800 866
Woodford County Urban 24.0 9,208 718
Macoupin County Urban 20.7 9,244 2,085
Stephenson County Rural 21.3 9,395 1,876
Knox County Rural 20.2 9,949 2,249
Jackson County Rural 19.0 10,007 2,557
Henry County Urban 22.0 10,793 1,567
Ogle County Rural 22.4 11,548 1,385
Whiteside County Rural 22.0 12,153 1,567
Boone County Urban 24.2 12,886 647
Grundy County Urban 24.7 13,072 530
Williamson County Rural 21.5 14,415 1,784
Adams County Rural 22.7 14,793 1,250
Vermilion County Rural 23.5 17,200 900
DeKalb County Urban 21.8 21,906 1,646
La Salle County Rural 21.3 23,234 1,876
Macon County Urban 22.6 23,234 1,288
Kankakee County Urban 23.0 24,569 1,127
Tazewell County Urban 22.3 29,099 1,429
Rock Island County Urban 22.5 32,223 1,340
McLean County Urban 21.5 36,679 1,784
Kendall County Urban 27.5 37,150 165
Champaign County Urban 19.3 39,730 2,489
Sangamon County Urban 22.0 42,980 1,567
Peoria County Urban 23.9 43,056 750
Madison County Urban 21.5 56,984 1,784
St. Clair County Urban 23.3 59,327 1,001
Winnebago County Urban 23.6 66,750 866
McHenry County Urban 23.0 71,656 1,127
Kane County Urban 24.4 125,866 594
Will County Urban 24.0 167,605 718
Lake County Urban 23.6 168,098 866
DuPage County Urban 22.4 207,574 1,385
Cook County Urban 21.4 1,110,965 1,821
Notes:
Created by statecancerprofiles.cancer.gov on 06/12/2025 6:15 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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