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Demographic Data Report for Illinois by County
Population: Age 18-39
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Ruralurban

County
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2023 Rural-Urban Continuum Codes Φ
 sort by rural urban ascending
Value (Percent)
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People (Age 18-39)
 sort by sample size ascending
Rank within US
(of 3143 counties)
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Illinois N/A 29.4 3,726,065 20 of 52
United States N/A 29.5 98,058,393 N/A
Alexander County Urban 20.0 1,010 2,963
Bond County Urban 31.2 5,192 352
Boone County Urban 26.4 14,059 1,323
Calhoun County Urban 18.2 804 3,074
Champaign County Urban 42.0 86,490 40
Clinton County Urban 26.7 9,870 1,210
Cook County Urban 31.7 1,643,440 310
DeKalb County Urban 37.5 37,646 88
DuPage County Urban 27.6 256,034 955
Ford County Urban 24.2 3,246 2,118
Grundy County Urban 27.7 14,658 931
Henry County Urban 23.8 11,631 2,236
Jersey County Urban 27.0 5,769 1,116
Kane County Urban 27.4 141,463 1,007
Kankakee County Urban 28.2 30,123 813
Kendall County Urban 28.2 38,057 813
Lake County Urban 27.9 198,318 880
Macon County Urban 26.4 27,052 1,323
Macoupin County Urban 24.2 10,787 2,118
Madison County Urban 28.3 74,761 796
Marshall County Urban 22.6 2,647 2,567
Massac County Urban 21.8 3,046 2,737
McHenry County Urban 26.4 82,170 1,323
McLean County Urban 35.5 60,733 138
Menard County Urban 24.0 2,924 2,185
Mercer County Urban 23.5 3,664 2,328
Monroe County Urban 24.5 8,558 2,020
Peoria County Urban 28.4 51,112 775
Piatt County Urban 24.8 4,147 1,916
Rock Island County Urban 27.1 38,744 1,092
Sangamon County Urban 26.6 51,894 1,248
St. Clair County Urban 27.4 69,811 1,007
Stark County Urban 22.7 1,211 2,546
Tazewell County Urban 25.4 33,136 1,691
Will County Urban 27.4 191,664 1,007
Winnebago County Urban 26.9 76,075 1,143
Woodford County Urban 25.3 9,696 1,724
Adams County Rural 25.6 16,691 1,623
Brown County Rural 30.6 1,935 409
Bureau County Rural 24.4 8,075 2,056
Carroll County Rural 25.8 4,030 1,550
Cass County Rural 27.7 3,552 931
Christian County Rural 26.9 9,051 1,143
Clark County Rural 25.4 3,886 1,691
Clay County Rural 25.5 3,360 1,655
Coles County Rural 33.8 15,769 200
Crawford County Rural 26.4 4,899 1,323
Cumberland County Rural 23.8 2,472 2,236
De Witt County Rural 23.6 3,642 2,294
Douglas County Rural 27.3 5,371 1,035
Edgar County Rural 22.7 3,772 2,546
Edwards County Rural 20.9 1,278 2,866
Effingham County Rural 26.5 9,134 1,285
Fayette County Rural 27.5 5,878 978
Franklin County Rural 23.6 8,844 2,294
Fulton County Rural 25.3 8,426 1,724
Gallatin County Rural 23.5 1,140 2,328
Greene County Rural 24.0 2,837 2,185
Hamilton County Rural 22.7 1,810 2,546
Hancock County Rural 22.2 3,865 2,663
Hardin County Rural 21.8 790 2,737
Henderson County Rural 20.9 1,313 2,866
Iroquois County Rural 22.8 6,099 2,515
Jackson County Rural 39.2 20,657 69
Jasper County Rural 21.8 2,016 2,737
Jefferson County Rural 26.3 9,663 1,356
Jo Daviess County Rural 20.8 4,563 2,882
Johnson County Rural 28.5 3,811 755
Knox County Rural 26.6 13,122 1,248
La Salle County Rural 26.2 28,525 1,389
Lawrence County Rural 29.9 4,525 500
Lee County Rural 25.9 8,815 1,514
Livingston County Rural 25.6 9,117 1,623
Logan County Rural 29.9 8,339 500
Marion County Rural 24.7 9,223 1,961
Mason County Rural 23.5 3,025 2,328
McDonough County Rural 36.9 10,005 96
Montgomery County Rural 26.4 7,426 1,323
Morgan County Rural 28.6 9,314 738
Moultrie County Rural 23.8 3,437 2,236
Ogle County Rural 25.0 12,898 1,828
Perry County Rural 27.5 5,718 978
Pike County Rural 24.7 3,610 1,961
Pope County Rural 19.2 720 3,024
Pulaski County Rural 25.9 1,312 1,514
Putnam County Rural 23.0 1,288 2,466
Randolph County Rural 25.4 7,655 1,691
Richland County Rural 23.6 3,696 2,294
Saline County Rural 26.2 6,118 1,389
Schuyler County Rural 20.9 1,427 2,866
Scott County Rural 22.2 1,078 2,663
Shelby County Rural 22.8 4,768 2,515
Stephenson County Rural 22.2 9,798 2,663
Union County Rural 23.6 3,997 2,294
Vermilion County Rural 24.8 18,128 1,916
Wabash County Rural 24.8 2,779 1,916
Warren County Rural 28.9 4,786 682
Washington County Rural 25.0 3,419 1,828
Wayne County Rural 22.5 3,592 2,600
White County Rural 22.9 3,138 2,494
Whiteside County Rural 24.2 13,360 2,118
Williamson County Rural 26.4 17,636 1,323
Notes:
Created by statecancerprofiles.cancer.gov on 07/19/2025 2:48 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 18-39, see the dictionary.

Data for United States does not include Puerto Rico.

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