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Demographics Table

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Demographic Data Report for Illinois by County
Education: Less than 9th grade
Population Ages 25+
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent

County
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2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
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People (Education: Less Than 9th Grade)
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Rank within US
(of 3143 counties)
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United States N/A 4.7 10,803,193 N/A
Illinois N/A 4.6 399,033 44 of 52
Douglas County Rural 8.5 1,136 2,921
Moultrie County Rural 8.0 773 2,887
Kane County Urban 7.0 24,259 2,788
Cass County Rural 6.5 559 2,706
Boone County Urban 6.2 2,225 2,637
Cook County Urban 6.2 226,534 2,637
Warren County Rural 5.9 637 2,571
Lake County Urban 5.0 23,973 2,313
Wayne County Rural 4.8 544 2,249
Saline County Rural 4.6 786 2,170
Alexander County Urban 4.3 152 2,057
Gallatin County Rural 4.3 154 2,057
Fayette County Rural 4.1 617 1,964
Hamilton County Rural 4.1 232 1,964
Brown County Rural 4.0 194 1,921
Massac County Urban 4.0 401 1,921
Will County Urban 4.0 18,750 1,921
Union County Rural 3.9 471 1,874
Clay County Rural 3.8 340 1,821
Lawrence County Rural 3.8 419 1,821
DuPage County Urban 3.7 23,996 1,776
Iroquois County Rural 3.7 688 1,776
Carroll County Rural 3.6 423 1,701
Randolph County Rural 3.6 791 1,701
Rock Island County Urban 3.6 3,561 1,701
White County Rural 3.6 352 1,701
Winnebago County Urban 3.6 6,918 1,701
Hardin County Rural 3.5 101 1,648
Kankakee County Urban 3.5 2,490 1,648
Livingston County Rural 3.4 856 1,593
Ogle County Rural 3.4 1,222 1,593
Crawford County Rural 3.3 447 1,534
DeKalb County Urban 3.3 1,979 1,534
Pulaski County Rural 3.3 112 1,534
Franklin County Rural 3.2 856 1,475
Whiteside County Rural 3.2 1,247 1,475
Edgar County Rural 3.1 381 1,405
Ford County Urban 3.1 285 1,405
Pope County Rural 3.1 92 1,405
Coles County Rural 3.0 915 1,338
Pike County Rural 3.0 308 1,338
Bureau County Rural 2.9 675 1,273
Washington County Rural 2.9 280 1,273
Effingham County Rural 2.8 673 1,194
Knox County Rural 2.8 966 1,194
McHenry County Urban 2.8 5,960 1,194
Clinton County Urban 2.7 709 1,124
Johnson County Rural 2.7 259 1,124
La Salle County Rural 2.7 2,083 1,124
Morgan County Rural 2.7 621 1,124
Richland County Rural 2.7 299 1,124
Henry County Urban 2.6 907 1,042
Jackson County Rural 2.6 828 1,042
Jo Daviess County Rural 2.6 430 1,042
Schuyler County Rural 2.6 140 1,042
Vermilion County Rural 2.6 1,302 1,042
Christian County Rural 2.5 605 975
Lee County Rural 2.4 605 889
Bond County Urban 2.3 264 825
Kendall County Urban 2.3 2,052 825
Marion County Rural 2.3 585 825
Stark County Urban 2.3 88 825
Wabash County Rural 2.3 179 825
Jefferson County Rural 2.2 561 751
Macoupin County Urban 2.2 708 751
Montgomery County Rural 2.2 454 751
St. Clair County Urban 2.2 3,793 751
De Witt County Rural 2.1 227 681
Grundy County Urban 2.1 744 681
Hancock County Rural 2.1 268 681
Mason County Rural 2.1 193 681
McDonough County Rural 2.1 350 681
Peoria County Urban 2.1 2,598 681
Jasper County Rural 2.0 126 603
Perry County Rural 2.0 299 603
Stephenson County Rural 2.0 621 603
Champaign County Urban 1.9 2,270 548
Tazewell County Urban 1.9 1,789 548
Greene County Rural 1.8 150 485
Logan County Rural 1.8 349 485
Macon County Urban 1.8 1,266 485
Williamson County Rural 1.8 875 485
Cumberland County Rural 1.7 121 443
Jersey County Urban 1.7 249 443
Mercer County Urban 1.7 184 443
Adams County Rural 1.6 730 364
Edwards County Rural 1.6 71 364
Madison County Urban 1.6 3,046 364
Shelby County Rural 1.6 234 364
Fulton County Rural 1.5 350 309
Henderson County Rural 1.5 72 309
Sangamon County Urban 1.5 2,082 309
Woodford County Urban 1.5 396 309
Clark County Rural 1.4 149 242
McLean County Urban 1.4 1,509 242
Menard County Urban 1.2 100 163
Marshall County Urban 1.1 97 132
Scott County Rural 1.1 40 132
Putnam County Rural 1.0 40 92
Calhoun County Urban 0.7 23 39
Monroe County Urban 0.6 160 30
Piatt County Urban 0.4 53 18

Notes:
Created by statecancerprofiles.cancer.gov on 03/26/2026 12:20 am.

Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.

Source: Demographic data provided by the Census Bureau and the American Community Survey.

For more information about Education: Less than 9th grade, see the dictionary.

Data for United States does not include Puerto Rico.

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