Ranking of Illinois Counties By Two Or More Races Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)

Updated on September 5, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the Illinois Two Or More Races population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 66,258. Among all Illinois counties, Cook County had the highest Two Or More Races population (aged 25 years and above) with an educational attainment of Less than High School Diploma (37,668), followed by Kane County (5,759), and Lake County (5,525).

The chart below shows the top 10 Illinois counties, and the table below shows the ranking of all Illinois counties.

You can see similar information for other educational attainments, and for other races and ethnicities.

You can also see similar information for other states and for the United States.

Ranking of Illinois Counties By Two Or More Races Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Cook County
Kane County
Lake County
Will County
DuPage County
Winnebago County
McHenry County
Rock Island County
Kendall County
St. Clair County
Ranking of Illinois Counties By Two Or More Races Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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Rank County Number of People
1 Cook County 37668
2 Kane County 5759
3 Lake County 5525
4 Will County 3436
5 DuPage County 3275
6 Winnebago County 1690
7 McHenry County 1212
8 Rock Island County 694
9 Kendall County 444
10 St. Clair County 389
11 Ogle County 320
12 Champaign County 306
13 Kankakee County 297
14 Macon County 279
15 Peoria County 274
16 DeKalb County 270
17 Madison County 251
18 Sangamon County 245
19 LaSalle County 224
20 Whiteside County 200
21 Adams County 197
22 Lawrence County 167
23 Vermilion County 138
24 Boone County 137
25 Perry County 133
26 Saline County 121
27 Iroquois County 114
28 Jefferson County 108
28 Knox County 108
29 Tazewell County 104
30 Grundy County 103
31 Henry County 100
31 Macoupin County 100
32 Lee County 97
33 Jackson County 87
34 Bureau County 85
35 Cass County 83
36 Stephenson County 71
37 Coles County 70
37 McLean County 70
38 Livingston County 67
38 Randolph County 67
39 Union County 64
40 Douglas County 60
41 Pike County 58
42 Mason County 57
43 Montgomery County 56
44 Clinton County 54
45 Christian County 52
46 Logan County 51
47 Fayette County 49
47 Mercer County 49
48 Jo Daviess County 47
49 Fulton County 46
49 Marion County 46
50 Franklin County 44
51 Hancock County 32
52 Clay County 30
52 Williamson County 30
53 Crawford County 27
54 Marshall County 22
54 Morgan County 22
55 Clark County 21
55 Piatt County 21
56 Schuyler County 20
57 Menard County 19
58 De Witt County 17
59 Carroll County 16
60 Massac County 15
61 Ford County 14
61 Stark County 14
62 Wayne County 13
63 Johnson County 11
63 Moultrie County 11
64 Jasper County 10
65 Alexander County 8
65 Richland County 8
65 Shelby County 8
66 Effingham County 7
67 Jersey County 6
67 White County 6
68 Wabash County 5
69 Bond County 4
69 Edwards County 4
69 Washington County 4
70 Brown County 3
70 McDonough County 3
70 Pulaski County 3
70 Putnam County 3
71 Calhoun County 1
71 Cumberland County 1
71 Woodford County 1
72 Edgar County 0
72 Gallatin County 0
72 Greene County 0
72 Hamilton County 0
72 Hardin County 0
72 Henderson County 0
72 Monroe County 0
72 Pope County 0
72 Scott County 0
72 Warren County 0