Ranking of Tennessee Counties By Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of Tennessee (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 1,485,813. Among all Tennessee counties, Shelby County had the highest population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (168,383), followed by Davidson County (104,797), and Knox County (79,944).
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.
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Related Topics: Tennessee ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Tennessee Counties By Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Shelby County | 168383 |
| 2 | Davidson County | 104797 |
| 3 | Knox County | 79944 |
| 4 | Hamilton County | 64205 |
| 5 | Rutherford County | 58332 |
| 6 | Sumner County | 38700 |
| 7 | Sullivan County | 38514 |
| 8 | Montgomery County | 36120 |
| 9 | Blount County | 34623 |
| 10 | Wilson County | 28718 |
| 11 | Washington County | 26311 |
| 12 | Sevier County | 24848 |
| 13 | Bradley County | 23355 |
| 14 | Maury County | 22614 |
| 15 | Madison County | 21873 |
| 16 | Greene County | 21116 |
| 17 | Williamson County | 20402 |
| 18 | Robertson County | 19514 |
| 19 | Anderson County | 18370 |
| 20 | Cumberland County | 18196 |
| 21 | Putnam County | 18122 |
| 22 | Hawkins County | 17634 |
| 23 | Hamblen County | 17036 |
| 24 | Carter County | 15890 |
| 25 | Dickson County | 14900 |
| 26 | Tipton County | 14840 |
| 27 | Coffee County | 14776 |
| 28 | McMinn County | 14294 |
| 29 | Roane County | 14264 |
| 30 | Jefferson County | 14093 |
| 31 | Bedford County | 13777 |
| 32 | Gibson County | 13711 |
| 33 | Monroe County | 13116 |
| 34 | Lawrence County | 12944 |
| 35 | Warren County | 12903 |
| 36 | Loudon County | 12733 |
| 37 | Cocke County | 12245 |
| 38 | Franklin County | 12016 |
| 39 | Campbell County | 11328 |
| 40 | Cheatham County | 11066 |
| 41 | Henry County | 10515 |
| 42 | Lincoln County | 10509 |
| 43 | Fayette County | 10423 |
| 44 | Obion County | 9767 |
| 45 | Weakley County | 9364 |
| 46 | Giles County | 9335 |
| 47 | Dyer County | 9308 |
| 48 | Marshall County | 9239 |
| 49 | Henderson County | 9034 |
| 50 | Claiborne County | 8881 |
| 51 | McNairy County | 8817 |
| 52 | Rhea County | 8622 |
| 53 | Hardin County | 8557 |
| 54 | Hickman County | 8221 |
| 55 | Macon County | 8125 |
| 56 | Lauderdale County | 8098 |
| 57 | Hardeman County | 8043 |
| 58 | Marion County | 8011 |
| 59 | Carroll County | 7987 |
| 60 | White County | 7772 |
| 61 | Overton County | 7358 |
| 62 | Morgan County | 7040 |
| 63 | Grainger County | 6889 |
| 64 | Scott County | 6868 |
| 65 | Humphreys County | 6359 |
| 66 | Smith County | 5916 |
| 67 | Union County | 5861 |
| 68 | Haywood County | 5837 |
| 69 | DeKalb County | 5595 |
| 70 | Wayne County | 5587 |
| 71 | Benton County | 5533 |
| 72 | Johnson County | 5478 |
| 73 | Fentress County | 5245 |
| 74 | Bledsoe County | 5070 |
| 75 | Unicoi County | 4952 |
| 76 | Chester County | 4753 |
| 77 | Polk County | 4616 |
| 78 | Cannon County | 4569 |
| 79 | Sequatchie County | 4568 |
| 80 | Meigs County | 4092 |
| 81 | Grundy County | 3966 |
| 82 | Stewart County | 3944 |
| 83 | Jackson County | 3922 |
| 84 | Crockett County | 3849 |
| 85 | Lewis County | 3711 |
| 86 | Trousdale County | 3637 |
| 87 | Decatur County | 3567 |
| 88 | Clay County | 2701 |
| 89 | Perry County | 2570 |
| 90 | Houston County | 2569 |
| 91 | Lake County | 2332 |
| 92 | Van Buren County | 2212 |
| 93 | Hancock County | 2069 |
| 94 | Moore County | 1893 |
| 95 | Pickett County | 1434 |
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