| City | County | 2026 Pop. ↓ |
|---|---|---|
| Lebanon | Wilson County | 56,325 |
| La Vergne | Rutherford County | 42,911 |
| Lakeland | Shelby County | 14,537 |
| Lewisburg | Marshall County | 13,800 |
| Lenoir City | Loudon County | 13,045 |
| Lawrenceburg | Lawrence County | 12,369 |
| Lexington | Henderson County | 8,149 |
| Loudon | Loudon County | 7,167 |
| La Follette | Campbell County | 7,127 |
| Lynchburg, Moore County | Bedford County | 7,007 |
| Lafayette | Macon County | 6,107 |
| Lake Tansi | Bledsoe County | 4,737 |
| Louisville | Blount County | 4,595 |
| Livingston | Overton County | 4,190 |
| Lookout Mountain | Hamilton County | 2,043 |
| Lakesite | Hamilton County | 2,003 |
| Loretto | Lawrence County | 1,832 |
| Lone Oak | Hamilton County | 1,522 |
| Linden | Perry County | 1,190 |
| Lyles | Hickman County | 1,159 |
| Luttrell | Union County | 1,138 |
| Lakewood Park | Bedford County | 1,022 |
| Lobelville | Perry County | 1,008 |
| Leoma | Lawrence County | 421 |
| Lenox | Dyer County | 396 |
| Liberty | DeKalb County | 345 |
| Lynnville | Giles County | 337 |
| Luray | Chester County | 162 |
| La Grange | Fayette County | 120 |
| Lavinia | Carroll County | 95 |