Ranking of Illinois Counties By Percentage of Population Aged 25 years and above with an Educational attainment of Bachelors or Higher in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the population of Illinois (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 36.16%. Among all Illinois counties, DuPage County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Bachelors or Higher (50.66%), followed by Lake County (46.32%), and McLean County (45.61%).
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.
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 Percentage of Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
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| Rank | County | Percentage of Population (Aged 25yrs+) (%) |
|---|---|---|
| 1 | DuPage County | 50.66 |
| 2 | Lake County | 46.32 |
| 3 | McLean County | 45.61 |
| 4 | Champaign County | 45.48 |
| 5 | Cook County | 40.75 |
| 6 | Monroe County | 37.05 |
| 7 | Kane County | 35.97 |
| 8 | Will County | 35.37 |
| 9 | Kendall County | 35.26 |
| 10 | McHenry County | 35.19 |
| 11 | Woodford County | 34.91 |
| 12 | Jackson County | 34.15 |
| 13 | Sangamon County | 33.98 |
| 14 | DeKalb County | 33.19 |
| 15 | Peoria County | 32.92 |
| 16 | McDonough County | 32.22 |
| 17 | Piatt County | 31.08 |
| 18 | St. Clair County | 29.63 |
| 19 | Madison County | 28.47 |
| 20 | Tazewell County | 27.67 |
| 21 | Grundy County | 26.64 |
| 22 | Williamson County | 26.62 |
| 23 | Coles County | 25.74 |
| 24 | Adams County | 25.68 |
| 25 | Jo Daviess County | 25.12 |
| 26 | Boone County | 24.84 |
| 27 | Hancock County | 24.54 |
| 28 | Menard County | 24.44 |
| 29 | Henry County | 23.94 |
| 30 | Rock Island County | 23.57 |
| 31 | Macon County | 23.46 |
| 32 | Clark County | 23.35 |
| 33 | Winnebago County | 23.26 |
| 34 | Effingham County | 23.10 |
| 35 | Clinton County | 23.09 |
| 36 | Union County | 22.70 |
| 37 | Washington County | 22.57 |
| 38 | Jersey County | 22.42 |
| 39 | Warren County | 22.39 |
| 40 | Scott County | 22.07 |
| 41 | Ford County | 21.74 |
| 42 | Ogle County | 21.59 |
| 43 | Stephenson County | 21.35 |
| 44 | Bond County | 21.17 |
| 45 | Morgan County | 21.08 |
| 46 | Logan County | 21.07 |
| 47 | De Witt County | 20.91 |
| 48 | Kankakee County | 20.75 |
| 49 | Bureau County | 20.43 |
| 50 | Putnam County | 19.97 |
| 51 | Carroll County | 19.86 |
| 52 | Moultrie County | 19.81 |
| 53 | Jasper County | 19.76 |
| 54 | Knox County | 19.65 |
| 55 | Stark County | 19.51 |
| 56 | Richland County | 19.39 |
| 57 | Cumberland County | 19.18 |
| 58 | Saline County | 19.17 |
| 59 | Douglas County | 19.11 |
| 60 | Whiteside County | 18.83 |
| 61 | Mercer County | 18.73 |
| 62 | Hamilton County | 18.72 |
| 63 | Lee County | 18.64 |
| 64 | Henderson County | 18.56 |
| 65 | Wabash County | 18.51 |
| 66 | LaSalle County | 18.50 |
| 67 | Macoupin County | 18.48 |
| 68 | Fulton County | 18.26 |
| 69 | Cass County | 18.25 |
| 70 | Edgar County | 18.24 |
| 71 | Christian County | 18.19 |
| 72 | Jefferson County | 18.17 |
| 73 | Marshall County | 18.00 |
| 74 | Montgomery County | 17.86 |
| 75 | Franklin County | 17.71 |
| 76 | Pike County | 17.57 |
| 77 | Shelby County | 17.39 |
| 78 | Schuyler County | 17.37 |
| 79 | Johnson County | 17.34 |
| 80 | Calhoun County | 17.33 |
| 81 | Crawford County | 17.29 |
| 82 | Livingston County | 16.77 |
| 83 | Mason County | 16.73 |
| 84 | Greene County | 16.52 |
| 85 | Vermilion County | 16.32 |
| 86 | White County | 16.21 |
| 87 | Marion County | 16.20 |
| 88 | Iroquois County | 15.94 |
| 89 | Wayne County | 15.23 |
| 90 | Clay County | 14.83 |
| 91 | Pulaski County | 14.71 |
| 92 | Pope County | 14.49 |
| 93 | Hardin County | 13.38 |
| 94 | Edwards County | 13.34 |
| 95 | Lawrence County | 13.29 |
| 96 | Randolph County | 13.19 |
| 97 | Massac County | 13.12 |
| 98 | Brown County | 13.00 |
| 99 | Fayette County | 12.56 |
| 100 | Alexander County | 12.26 |
| 101 | Perry County | 11.64 |
| 102 | Gallatin County | 10.97 |