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.
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Related Topics: Illinois ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
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 |