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Demographics Table

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Demographic Data Report for Illinois by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Rank

County
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2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
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People (Age 40 And Over)
 sort by sample size ascending
Rank within US
(of 3143 counties)
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United States N/A 48.3 160,683,909 N/A
Illinois N/A 48.5 6,157,709 27 of 52
Champaign County Urban 38.8 79,878 3,056
DeKalb County Urban 40.8 40,960 2,994
Jackson County Rural 41.8 22,042 2,947
McLean County Urban 43.0 73,470 2,889
Kendall County Urban 44.3 59,846 2,805
McDonough County Rural 45.2 12,244 2,742
Cook County Urban 46.9 2,431,407 2,546
Grundy County Urban 47.6 25,190 2,466
Peoria County Urban 47.6 85,663 2,466
Cass County Rural 47.8 6,133 2,445
Coles County Rural 48.0 22,399 2,413
Douglas County Rural 48.2 9,479 2,375
Kane County Urban 48.2 248,768 2,375
Lake County Urban 48.5 345,469 2,317
Will County Urban 48.6 339,181 2,301
Kankakee County Urban 48.8 52,141 2,265
Warren County Rural 48.9 8,106 2,240
Effingham County Rural 49.3 17,023 2,161
St. Clair County Urban 49.3 125,639 2,161
Boone County Urban 49.5 26,371 2,114
Winnebago County Urban 49.6 140,464 2,089
DuPage County Urban 50.0 463,655 2,012
Madison County Urban 50.2 132,886 1,964
Rock Island County Urban 50.4 72,028 1,909
Logan County Rural 50.5 14,084 1,892
Bond County Urban 50.6 8,406 1,867
McHenry County Urban 50.6 157,540 1,867
Moultrie County Rural 50.7 7,338 1,843
Woodford County Urban 50.7 19,444 1,843
Macon County Urban 51.0 52,305 1,782
Jefferson County Rural 51.3 18,882 1,696
Lawrence County Rural 51.3 7,760 1,696
Sangamon County Urban 51.4 100,343 1,669
Clay County Rural 51.5 6,779 1,654
Adams County Rural 51.7 33,682 1,591
Clinton County Urban 51.7 19,063 1,591
Marion County Rural 51.7 19,271 1,591
Vermilion County Rural 51.7 37,851 1,591
Brown County Rural 51.9 3,283 1,542
Fayette County Rural 52.0 11,123 1,517
Morgan County Rural 52.1 17,004 1,497
Williamson County Rural 52.1 34,851 1,497
Clark County Rural 52.3 8,019 1,441
Cumberland County Rural 52.3 5,431 1,441
Pike County Rural 52.3 7,646 1,441
Tazewell County Urban 52.3 68,320 1,441
Livingston County Rural 52.4 18,676 1,415
Ford County Urban 52.5 7,030 1,392
La Salle County Rural 52.5 57,290 1,392
Ogle County Rural 52.6 27,090 1,368
Saline County Rural 52.9 12,382 1,283
Jersey County Urban 53.0 11,311 1,255
Perry County Rural 53.0 11,032 1,255
Christian County Rural 53.1 17,899 1,231
Knox County Rural 53.2 26,223 1,214
Piatt County Urban 53.3 8,894 1,189
Crawford County Rural 53.4 9,933 1,162
Monroe County Urban 53.4 18,682 1,162
Montgomery County Rural 53.4 15,003 1,162
Richland County Rural 53.4 8,368 1,162
Wabash County Rural 53.4 5,982 1,162
Pulaski County Rural 53.6 2,722 1,120
Johnson County Rural 53.7 7,165 1,099
Whiteside County Rural 53.8 29,679 1,078
Menard County Urban 53.9 6,558 1,056
Washington County Rural 54.0 7,391 1,038
Henry County Urban 54.2 26,524 977
Lee County Rural 54.2 18,465 977
Randolph County Rural 54.2 16,349 977
Franklin County Rural 54.3 20,374 959
Bureau County Rural 54.6 18,030 889
Greene County Rural 54.6 6,466 889
Hamilton County Rural 54.6 4,350 889
Fulton County Rural 54.9 18,267 835
De Witt County Rural 55.0 8,496 818
Union County Rural 55.0 9,332 818
Wayne County Rural 55.0 8,793 818
Macoupin County Urban 55.1 24,535 797
White County Rural 55.3 7,578 770
Iroquois County Rural 55.5 14,845 734
Mercer County Urban 55.5 8,662 734
Stark County Urban 55.6 2,960 718
Jasper County Rural 55.7 5,147 696
Shelby County Rural 55.8 11,641 685
Mason County Rural 55.9 7,204 666
Carroll County Rural 56.1 8,764 640
Marshall County Urban 56.2 6,589 630
Scott County Rural 56.3 2,731 618
Stephenson County Rural 56.4 24,849 607
Edwards County Rural 56.6 3,461 580
Gallatin County Rural 56.7 2,755 569
Hancock County Rural 56.7 9,889 569
Massac County Urban 57.0 7,956 548
Putnam County Rural 57.3 3,209 511
Edgar County Rural 57.6 9,584 478
Alexander County Urban 58.3 2,940 396
Henderson County Rural 60.2 3,783 249
Jo Daviess County Rural 60.6 13,293 222
Calhoun County Urban 61.4 2,705 181
Schuyler County Rural 61.8 4,219 169
Hardin County Rural 64.6 2,339 84
Pope County Rural 65.2 2,448 69
Notes:
Created by statecancerprofiles.cancer.gov on 05/13/2025 12:53 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 40 and over, see the dictionary.

Data for United States does not include Puerto Rico.

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