Ranking of Illinois Counties By Percentage of White Alone Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Illinois White Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 25.60%. Among all Illinois counties, Scott County had the highest percentage of its White Alone population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (45.35%), followed by Greene County (45.16%), and Cass County (43.32%).
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.
| Rank | County | Percentage of Population (Aged 25yrs+) (%) |
|---|---|---|
| 1 | Scott County | 45.35 |
| 2 | Greene County | 45.16 |
| 3 | Cass County | 43.32 |
| 4 | Henderson County | 43.31 |
| 5 | Shelby County | 43.12 |
| 6 | Livingston County | 43.07 |
| 7 | Alexander County | 43.04 |
| 8 | Christian County | 42.34 |
| 9 | Pike County | 42.17 |
| 10 | Pulaski County | 42.12 |
| 11 | Pope County | 41.84 |
| 12 | De Witt County | 41.55 |
| 13 | Calhoun County | 41.47 |
| 13 | Vermilion County | 41.47 |
| 14 | Fayette County | 41.23 |
| 14 | Mason County | 41.23 |
| 15 | Montgomery County | 40.64 |
| 16 | Macoupin County | 40.54 |
| 17 | Randolph County | 40.05 |
| 18 | Clay County | 39.79 |
| 19 | Putnam County | 39.75 |
| 20 | Iroquois County | 39.60 |
| 21 | Morgan County | 39.48 |
| 22 | Stark County | 39.36 |
| 23 | Marshall County | 39.22 |
| 24 | Cumberland County | 38.91 |
| 24 | Schuyler County | 38.91 |
| 25 | Gallatin County | 38.90 |
| 26 | Mercer County | 38.74 |
| 27 | Edgar County | 38.47 |
| 28 | Jasper County | 38.28 |
| 29 | Whiteside County | 38.14 |
| 30 | Brown County | 37.96 |
| 31 | Fulton County | 37.95 |
| 32 | Clark County | 37.74 |
| 33 | Jersey County | 37.46 |
| 34 | Logan County | 37.02 |
| 35 | Carroll County | 36.67 |
| 36 | LaSalle County | 36.39 |
| 37 | Lawrence County | 36.34 |
| 38 | Ford County | 36.31 |
| 39 | Perry County | 36.12 |
| 40 | Bureau County | 35.83 |
| 41 | Jo Daviess County | 35.72 |
| 42 | Adams County | 35.52 |
| 43 | Marion County | 35.51 |
| 44 | Macon County | 35.45 |
| 45 | Kankakee County | 35.41 |
| 46 | Wayne County | 35.27 |
| 47 | Henry County | 35.26 |
| 47 | Knox County | 35.26 |
| 48 | Massac County | 35.25 |
| 49 | Lee County | 35.22 |
| 50 | Hancock County | 35.06 |
| 51 | Union County | 35.01 |
| 52 | Douglas County | 34.81 |
| 53 | Warren County | 34.59 |
| 54 | Edwards County | 34.40 |
| 55 | Ogle County | 34.32 |
| 56 | White County | 34.20 |
| 57 | McDonough County | 34.09 |
| 58 | Boone County | 34.01 |
| 59 | Hardin County | 33.93 |
| 60 | Menard County | 33.80 |
| 61 | Moultrie County | 33.64 |
| 62 | Stephenson County | 33.60 |
| 63 | Washington County | 33.48 |
| 64 | Bond County | 33.22 |
| 65 | Effingham County | 33.08 |
| 66 | Franklin County | 32.80 |
| 67 | Coles County | 32.78 |
| 68 | Grundy County | 32.51 |
| 69 | Piatt County | 32.45 |
| 69 | Wabash County | 32.45 |
| 70 | Jefferson County | 32.22 |
| 71 | Hamilton County | 32.19 |
| 71 | Johnson County | 32.19 |
| 72 | Clinton County | 32.10 |
| 73 | Winnebago County | 31.39 |
| 74 | Richland County | 31.26 |
| 75 | Tazewell County | 30.54 |
| 76 | Rock Island County | 30.30 |
| 77 | Williamson County | 29.95 |
| 78 | Crawford County | 29.54 |
| 79 | Saline County | 29.36 |
| 80 | Madison County | 29.22 |
| 81 | Woodford County | 28.33 |
| 82 | Peoria County | 27.74 |
| 83 | Sangamon County | 27.52 |
| 84 | Will County | 26.85 |
| 85 | McHenry County | 26.24 |
| 86 | DeKalb County | 26.00 |
| 87 | Monroe County | 25.47 |
| 88 | St. Clair County | 25.42 |
| 89 | McLean County | 24.14 |
| 90 | Kendall County | 23.32 |
| 91 | Jackson County | 23.15 |
| 92 | Kane County | 21.81 |
| 93 | Champaign County | 21.57 |
| 94 | Cook County | 20.08 |
| 95 | Lake County | 19.35 |
| 96 | DuPage County | 18.79 |
