Ranking of Tennessee Counties By Percentage of Population Aged 25 years and above with an Educational attainment of Less than High School Diploma 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 Tennessee (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 11.24%. Among all Tennessee counties, Lake County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Less than High School Diploma (26.31%), followed by Bledsoe County (23.45%), and Perry County (22.32%).
The chart below shows the top 10 Tennessee counties, and the table below shows the ranking of all Tennessee counties.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
You may also be interested in:
Related Topics: Tennessee ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Tennessee Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Items per page:
25
0 of 0
| Rank | County | Percentage of Population (Aged 25yrs+) (%) |
|---|---|---|
| 1 | Lake County | 26.31 |
| 2 | Bledsoe County | 23.45 |
| 3 | Perry County | 22.32 |
| 4 | Grundy County | 21.85 |
| 5 | Union County | 20.85 |
| 6 | Pickett County | 20.78 |
| 7 | Lauderdale County | 20.40 |
| 8 | Macon County | 20.19 |
| 9 | Scott County | 20.10 |
| 10 | Grainger County | 20.07 |
| 11 | Campbell County | 19.93 |
| 12 | Fentress County | 19.75 |
| 13 | DeKalb County | 19.46 |
| 14 | Van Buren County | 19.09 |
| 15 | Johnson County | 18.96 |
| 16 | Morgan County | 18.82 |
| 17 | Hancock County | 18.71 |
| 18 | Overton County | 18.64 |
| 19 | Jackson County | 18.63 |
| 20 | Marion County | 18.52 |
| 20 | White County | 18.52 |
| 21 | Hickman County | 18.06 |
| 22 | Claiborne County | 17.97 |
| 23 | Sequatchie County | 17.92 |
| 24 | Clay County | 17.88 |
| 25 | Hardeman County | 17.86 |
| 26 | Polk County | 17.69 |
| 27 | Wayne County | 17.52 |
| 28 | Haywood County | 17.25 |
| 29 | Obion County | 16.99 |
| 30 | Rhea County | 16.88 |
| 31 | Meigs County | 16.79 |
| 31 | Warren County | 16.79 |
| 32 | Lewis County | 16.63 |
| 33 | Bedford County | 16.22 |
| 34 | Cocke County | 16.20 |
| 35 | Crockett County | 15.83 |
| 36 | Houston County | 15.70 |
| 37 | Hardin County | 15.63 |
| 38 | Decatur County | 15.59 |
| 39 | Cannon County | 15.48 |
| 40 | Chester County | 15.34 |
| 41 | Monroe County | 15.31 |
| 42 | Benton County | 15.24 |
| 43 | Hamblen County | 15.21 |
| 44 | Greene County | 14.92 |
| 45 | McNairy County | 14.82 |
| 46 | Lincoln County | 14.30 |
| 47 | Henry County | 14.24 |
| 48 | Trousdale County | 14.21 |
| 49 | McMinn County | 14.02 |
| 50 | Lawrence County | 13.90 |
| 51 | Unicoi County | 13.79 |
| 52 | Humphreys County | 13.66 |
| 53 | Jefferson County | 13.62 |
| 54 | Sevier County | 13.43 |
| 55 | Hawkins County | 13.41 |
| 56 | Henderson County | 13.27 |
| 57 | Moore County | 13.25 |
| 58 | Stewart County | 13.23 |
| 59 | Carter County | 13.21 |
| 60 | Gibson County | 12.90 |
| 61 | Dickson County | 12.82 |
| 62 | Smith County | 12.81 |
| 62 | Weakley County | 12.81 |
| 63 | Cheatham County | 12.72 |
| 64 | Loudon County | 12.67 |
| 65 | Bradley County | 12.59 |
| 66 | Giles County | 12.41 |
| 67 | Coffee County | 12.21 |
| 68 | Marshall County | 12.18 |
| 69 | Robertson County | 12.15 |
| 70 | Dyer County | 12.14 |
| 71 | Carroll County | 11.94 |
| 72 | Sullivan County | 11.68 |
| 73 | Cumberland County | 11.42 |
| 74 | Franklin County | 11.35 |
| 75 | Tipton County | 11.18 |
| 76 | Putnam County | 11.12 |
| 77 | Shelby County | 10.73 |
| 78 | Fayette County | 10.67 |
| 79 | Madison County | 10.52 |
| 80 | Blount County | 10.23 |
| 81 | Anderson County | 10.14 |
| 82 | Davidson County | 9.89 |
| 83 | Hamilton County | 9.52 |
| 84 | Washington County | 9.35 |
| 85 | Roane County | 9.33 |
| 86 | Sumner County | 9.32 |
| 87 | Maury County | 8.89 |
| 88 | Knox County | 7.87 |
| 89 | Rutherford County | 7.66 |
| 90 | Wilson County | 7.01 |
| 91 | Montgomery County | 6.43 |
| 92 | Williamson County | 4.22 |