# Counties in Tennessee by median age on 1 July (US county estimates), 2025

All 95 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `median_age_pep`
- Unit: years
- Definition: Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.
- Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (https://www.census.gov/programs-surveys/popest/data/data-sets.html)
- Publisher page: https://invokely.ai/en/publishers/us-census-bureau
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/median-age-july-1-us-counties/tennessee-counties

| Rank | Place | years |
|---:|---|---:|
| 1 | Cumberland County | 54.8 |
| 2 | Pickett County | 52.2 |
| 3 | Loudon County | 50.8 |
| 4 | Clay County | 48.8 |
| 5 | Fayette County | 48.5 |
| 6 | Johnson County | 48.3 |
| 7 | Unicoi County | 48.2 |
| 8 | Fentress County | 47.9 |
| 9 | Benton County | 47.8 |
| 10 | Polk County | 47.4 |
| 11 | Jackson County | 47.3 |
| 12 | Henry County | 46.8 |
| 13 | Decatur County | 46.7 |
| 13 | Moore County | 46.7 |
| 15 | Van Buren County | 46.6 |
| 16 | Hardin County | 46.5 |
| 17 | Hawkins County | 46.4 |
| 18 | Cocke County | 46 |
| 18 | Grainger County | 46 |
| 18 | Meigs County | 46 |
| 18 | Roane County | 46 |
| 22 | Carter County | 45.8 |
| 22 | Hancock County | 45.8 |
| 22 | Monroe County | 45.8 |
| 25 | Marion County | 45.7 |
| 26 | Greene County | 45.3 |
| 27 | Wayne County | 45.2 |
| 28 | Sullivan County | 45.1 |
| 29 | Overton County | 44.8 |
| 30 | Bledsoe County | 44.6 |
| 30 | Houston County | 44.6 |
| 30 | Jefferson County | 44.6 |
| 33 | Sequatchie County | 44.5 |
| 34 | Haywood County | 44.2 |
| 35 | Campbell County | 44.1 |
| 36 | McNairy County | 43.9 |
| 36 | Perry County | 43.9 |
| 38 | Blount County | 43.8 |
| 38 | Giles County | 43.8 |
| 38 | Grundy County | 43.8 |
| 38 | Stewart County | 43.8 |
| 42 | Humphreys County | 43.7 |
| 43 | Sevier County | 43.6 |
| 44 | White County | 43.5 |
| 45 | Obion County | 43.2 |
| 46 | Lincoln County | 43.1 |
| 47 | Claiborne County | 43 |
| 48 | Cannon County | 42.9 |
| 49 | Franklin County | 42.8 |
| 49 | Union County | 42.8 |
| 51 | DeKalb County | 42.7 |
| 51 | Lewis County | 42.7 |
| 53 | Lake County | 42.6 |
| 54 | Henderson County | 42.4 |
| 55 | Carroll County | 42.3 |
| 56 | McMinn County | 42.2 |
| 56 | Rhea County | 42.2 |
| 58 | Morgan County | 42.1 |
| 59 | Anderson County | 41.9 |
| 59 | Cheatham County | 41.9 |
| 61 | Hickman County | 41.7 |
| 62 | Hardeman County | 41.5 |
| 63 | Williamson County | 41.4 |
| 64 | Washington County | 41.2 |
| 65 | Smith County | 41.1 |
| 66 | Scott County | 40.9 |
| 66 | Warren County | 40.9 |
| 68 | Dickson County | 40.8 |
| 69 | Coffee County | 40.5 |
| 69 | Gibson County | 40.5 |
| 71 | Crockett County | 40.4 |
| 71 | Lauderdale County | 40.4 |
| 73 | Sumner County | 40.1 |
| 74 | Bradley County | 39.9 |
| 74 | Tipton County | 39.9 |
| 76 | Lawrence County | 39.7 |
| 77 | Dyer County | 39.6 |
| 78 | Hamblen County | 39.5 |
| 78 | Marshall County | 39.5 |
| 78 | Robertson County | 39.5 |
| 81 | Hamilton County | 39.4 |
| 82 | Madison County | 39.3 |
| 82 | Wilson County | 39.3 |
| 84 | Maury County | 39.1 |
| 85 | Trousdale County | 39 |
| 86 | Macon County | 38.5 |
| 87 | Chester County | 38.2 |
| 88 | Weakley County | 38.1 |
| 89 | Knox County | 37.7 |
| 90 | Bedford County | 37.4 |
| 91 | Shelby County | 36.9 |
| 92 | Putnam County | 36.5 |
| 93 | Rutherford County | 34.9 |
| 94 | Davidson County | 34.6 |
| 95 | Montgomery County | 32.5 |