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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 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 2,808,879 25 of 52
United States N/A 22.2 73,645,238 N/A
Adams County Rural 22.7 14,793 1,250
Alexander County Urban 21.7 1,092 1,683
Bond County Urban 18.2 3,029 2,731
Boone County Urban 24.2 12,886 647
Brown County Rural 17.4 1,102 2,857
Bureau County Rural 21.0 6,922 1,977
Calhoun County Urban 20.4 897 2,187
Carroll County Rural 18.1 2,827 2,747
Cass County Rural 24.5 3,141 572
Champaign County Urban 19.3 39,730 2,489
Christian County Rural 20.0 6,734 2,300
Clark County Rural 22.3 3,423 1,429
Clay County Rural 23.0 3,034 1,127
Clinton County Urban 21.6 7,966 1,725
Coles County Rural 18.3 8,521 2,702
Cook County Urban 21.4 1,110,965 1,821
Crawford County Rural 20.2 3,756 2,249
Cumberland County Rural 23.8 2,475 786
De Witt County Rural 21.5 3,323 1,784
DeKalb County Urban 21.8 21,906 1,646
Douglas County Rural 24.6 4,836 545
DuPage County Urban 22.4 207,574 1,385
Edgar County Rural 19.7 3,281 2,378
Edwards County Rural 22.5 1,379 1,340
Effingham County Rural 24.2 8,348 647
Fayette County Rural 20.5 4,379 2,151
Ford County Urban 23.3 3,120 1,001
Franklin County Rural 22.2 8,323 1,469
Fulton County Rural 19.7 6,566 2,378
Gallatin County Rural 19.8 962 2,359
Greene County Rural 21.4 2,534 1,821
Grundy County Urban 24.7 13,072 530
Hamilton County Rural 22.7 1,812 1,250
Hancock County Rural 21.1 3,680 1,936
Hardin County Rural 13.6 494 3,102
Henderson County Rural 18.9 1,188 2,581
Henry County Urban 22.0 10,793 1,567
Iroquois County Rural 21.7 5,802 1,683
Jackson County Rural 19.0 10,007 2,557
Jasper County Rural 22.4 2,070 1,385
Jefferson County Rural 22.4 8,263 1,385
Jersey County Urban 19.9 4,256 2,329
Jo Daviess County Rural 18.5 4,062 2,670
Johnson County Rural 17.8 2,374 2,803
Kane County Urban 24.4 125,866 594
Kankakee County Urban 23.0 24,569 1,127
Kendall County Urban 27.5 37,150 165
Knox County Rural 20.2 9,949 2,249
La Salle County Rural 21.3 23,234 1,876
Lake County Urban 23.6 168,098 866
Lawrence County Rural 18.8 2,852 2,608
Lee County Rural 19.9 6,778 2,329
Livingston County Rural 22.1 7,866 1,518
Logan County Rural 19.5 5,447 2,445
Macon County Urban 22.6 23,234 1,288
Macoupin County Urban 20.7 9,244 2,085
Madison County Urban 21.5 56,984 1,784
Marion County Rural 23.6 8,800 866
Marshall County Urban 21.2 2,479 1,907
Mason County Rural 20.6 2,649 2,123
Massac County Urban 21.2 2,956 1,907
McDonough County Rural 17.9 4,853 2,778
McHenry County Urban 23.0 71,656 1,127
McLean County Urban 21.5 36,679 1,784
Menard County Urban 22.1 2,687 1,518
Mercer County Urban 21.1 3,293 1,936
Monroe County Urban 22.1 7,729 1,518
Montgomery County Rural 20.1 5,649 2,274
Morgan County Rural 19.3 6,303 2,489
Moultrie County Rural 25.5 3,694 355
Ogle County Rural 22.4 11,548 1,385
Peoria County Urban 23.9 43,056 750
Perry County Rural 19.5 4,060 2,445
Piatt County Urban 21.9 3,661 1,606
Pike County Rural 23.0 3,369 1,127
Pope County Rural 15.7 589 3,014
Pulaski County Rural 20.5 1,040 2,151
Putnam County Rural 19.7 1,103 2,378
Randolph County Rural 20.4 6,138 2,187
Richland County Rural 23.0 3,611 1,127
Rock Island County Urban 22.5 32,223 1,340
Saline County Rural 20.9 4,887 2,008
Sangamon County Urban 22.0 42,980 1,567
Schuyler County Rural 17.3 1,180 2,869
Scott County Rural 21.4 1,038 1,821
Shelby County Rural 21.4 4,458 1,821
St. Clair County Urban 23.3 59,327 1,001
Stark County Urban 21.7 1,153 1,683
Stephenson County Rural 21.3 9,395 1,876
Tazewell County Urban 22.3 29,099 1,429
Union County Rural 21.5 3,643 1,784
Vermilion County Rural 23.5 17,200 900
Wabash County Rural 21.8 2,438 1,646
Warren County Rural 22.2 3,684 1,469
Washington County Rural 21.0 2,872 1,977
Wayne County Rural 22.6 3,609 1,288
White County Rural 21.8 2,992 1,646
Whiteside County Rural 22.0 12,153 1,567
Will County Urban 24.0 167,605 718
Williamson County Rural 21.5 14,415 1,784
Winnebago County Urban 23.6 66,750 866
Woodford County Urban 24.0 9,208 718
Notes:
Created by statecancerprofiles.cancer.gov on 07/09/2025 10:43 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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