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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 Name

County
 sort alphabetically by name descending
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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Illinois N/A 48.5 6,157,709 27 of 52
United States N/A 48.3 160,683,909 N/A
Adams County Rural 51.7 33,682 1,591
Alexander County Urban 58.3 2,940 396
Bond County Urban 50.6 8,406 1,867
Boone County Urban 49.5 26,371 2,114
Brown County Rural 51.9 3,283 1,542
Bureau County Rural 54.6 18,030 889
Calhoun County Urban 61.4 2,705 181
Carroll County Rural 56.1 8,764 640
Cass County Rural 47.8 6,133 2,445
Champaign County Urban 38.8 79,878 3,056
Christian County Rural 53.1 17,899 1,231
Clark County Rural 52.3 8,019 1,441
Clay County Rural 51.5 6,779 1,654
Clinton County Urban 51.7 19,063 1,591
Coles County Rural 48.0 22,399 2,413
Cook County Urban 46.9 2,431,407 2,546
Crawford County Rural 53.4 9,933 1,162
Cumberland County Rural 52.3 5,431 1,441
De Witt County Rural 55.0 8,496 818
DeKalb County Urban 40.8 40,960 2,994
Douglas County Rural 48.2 9,479 2,375
DuPage County Urban 50.0 463,655 2,012
Edgar County Rural 57.6 9,584 478
Edwards County Rural 56.6 3,461 580
Effingham County Rural 49.3 17,023 2,161
Fayette County Rural 52.0 11,123 1,517
Ford County Urban 52.5 7,030 1,392
Franklin County Rural 54.3 20,374 959
Fulton County Rural 54.9 18,267 835
Gallatin County Rural 56.7 2,755 569
Greene County Rural 54.6 6,466 889
Grundy County Urban 47.6 25,190 2,466
Hamilton County Rural 54.6 4,350 889
Hancock County Rural 56.7 9,889 569
Hardin County Rural 64.6 2,339 84
Henderson County Rural 60.2 3,783 249
Henry County Urban 54.2 26,524 977
Iroquois County Rural 55.5 14,845 734
Jackson County Rural 41.8 22,042 2,947
Jasper County Rural 55.7 5,147 696
Jefferson County Rural 51.3 18,882 1,696
Jersey County Urban 53.0 11,311 1,255
Jo Daviess County Rural 60.6 13,293 222
Johnson County Rural 53.7 7,165 1,099
Kane County Urban 48.2 248,768 2,375
Kankakee County Urban 48.8 52,141 2,265
Kendall County Urban 44.3 59,846 2,805
Knox County Rural 53.2 26,223 1,214
La Salle County Rural 52.5 57,290 1,392
Lake County Urban 48.5 345,469 2,317
Lawrence County Rural 51.3 7,760 1,696
Lee County Rural 54.2 18,465 977
Livingston County Rural 52.4 18,676 1,415
Logan County Rural 50.5 14,084 1,892
Macon County Urban 51.0 52,305 1,782
Macoupin County Urban 55.1 24,535 797
Madison County Urban 50.2 132,886 1,964
Marion County Rural 51.7 19,271 1,591
Marshall County Urban 56.2 6,589 630
Mason County Rural 55.9 7,204 666
Massac County Urban 57.0 7,956 548
McDonough County Rural 45.2 12,244 2,742
McHenry County Urban 50.6 157,540 1,867
McLean County Urban 43.0 73,470 2,889
Menard County Urban 53.9 6,558 1,056
Mercer County Urban 55.5 8,662 734
Monroe County Urban 53.4 18,682 1,162
Montgomery County Rural 53.4 15,003 1,162
Morgan County Rural 52.1 17,004 1,497
Moultrie County Rural 50.7 7,338 1,843
Ogle County Rural 52.6 27,090 1,368
Peoria County Urban 47.6 85,663 2,466
Perry County Rural 53.0 11,032 1,255
Piatt County Urban 53.3 8,894 1,189
Pike County Rural 52.3 7,646 1,441
Pope County Rural 65.2 2,448 69
Pulaski County Rural 53.6 2,722 1,120
Putnam County Rural 57.3 3,209 511
Randolph County Rural 54.2 16,349 977
Richland County Rural 53.4 8,368 1,162
Rock Island County Urban 50.4 72,028 1,909
Saline County Rural 52.9 12,382 1,283
Sangamon County Urban 51.4 100,343 1,669
Schuyler County Rural 61.8 4,219 169
Scott County Rural 56.3 2,731 618
Shelby County Rural 55.8 11,641 685
St. Clair County Urban 49.3 125,639 2,161
Stark County Urban 55.6 2,960 718
Stephenson County Rural 56.4 24,849 607
Tazewell County Urban 52.3 68,320 1,441
Union County Rural 55.0 9,332 818
Vermilion County Rural 51.7 37,851 1,591
Wabash County Rural 53.4 5,982 1,162
Warren County Rural 48.9 8,106 2,240
Washington County Rural 54.0 7,391 1,038
Wayne County Rural 55.0 8,793 818
White County Rural 55.3 7,578 770
Whiteside County Rural 53.8 29,679 1,078
Will County Urban 48.6 339,181 2,301
Williamson County Rural 52.1 34,851 1,497
Winnebago County Urban 49.6 140,464 2,089
Woodford County Urban 50.7 19,444 1,843
Notes:
Created by statecancerprofiles.cancer.gov on 07/14/2025 5:55 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 40 and over, see the dictionary.

Data for United States does not include Puerto Rico.

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