Ranking of Illinois Counties By Hispanic or Latino of All 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 Hispanic or Latino of All Races population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 379,996. Among all Illinois counties, Cook County had the highest Hispanic or Latino of All Races population (aged 25 years and above) with an educational attainment of Less than High School Diploma (231,841), followed by Kane County (36,165), and Lake County (28,964).

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 Hispanic or Latino of All 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
Boone County
Kendall County
Ranking of Illinois Counties By Hispanic or Latino of All 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 231841
2 Kane County 36165
3 Lake County 28964
4 Will County 20167
5 DuPage County 19162
6 Winnebago County 6369
7 McHenry County 6120
8 Rock Island County 2875
9 Boone County 2500
10 Kendall County 2416
11 Kankakee County 2062
12 LaSalle County 1971
13 DeKalb County 1774
14 St. Clair County 1408
15 Madison County 1101
16 Champaign County 1065
17 Peoria County 976
18 Grundy County 785
19 Ogle County 784
20 McLean County 598
21 Cass County 551
22 Whiteside County 532
23 Iroquois County 492
24 Bureau County 441
25 Knox County 439
26 Vermilion County 428
27 Lee County 405
28 Macon County 392
29 Henry County 390
30 Warren County 380
31 Randolph County 316
32 Livingston County 314
33 Sangamon County 292
34 Jackson County 275
35 Perry County 238
36 Lawrence County 235
37 Fulton County 232
38 Stephenson County 219
39 Douglas County 214
40 Williamson County 202
41 Jefferson County 201
42 Tazewell County 200
43 Jo Daviess County 198
44 Clinton County 196
45 Crawford County 192
46 Morgan County 185
47 Coles County 161
47 Johnson County 161
48 Union County 160
49 Effingham County 149
50 Logan County 144
51 Christian County 140
52 Massac County 133
53 Montgomery County 130
54 Brown County 128
55 De Witt County 92
55 Edgar County 92
56 Bond County 78
57 Ford County 76
57 Wayne County 76
58 Macoupin County 71
59 Fayette County 66
60 Carroll County 65
61 Cumberland County 61
62 Jersey County 59
63 White County 58
64 Mercer County 57
65 Franklin County 53
66 Adams County 50
66 Marion County 50
66 Woodford County 50
67 Marshall County 49
68 Hamilton County 48
69 Monroe County 35
69 Putnam County 35
70 Saline County 31
71 Stark County 22
72 Schuyler County 19
73 Piatt County 15
74 McDonough County 14
75 Hardin County 11
75 Pike County 11
75 Shelby County 11
76 Pope County 10
77 Gallatin County 9
77 Hancock County 9
77 Mason County 9
77 Pulaski County 9
78 Alexander County 6
79 Clay County 5
80 Moultrie County 4
81 Calhoun County 3
81 Washington County 3
82 Edwards County 2
82 Henderson County 2
82 Wabash County 2
83 Clark County 0
83 Greene County 0
83 Jasper County 0
83 Menard County 0
83 Richland County 0
83 Scott County 0