| City | County | 2026 Pop. ↓ |
|---|---|---|
| Arlington | Shelby County | 15,881 |
| Athens | McMinn County | 15,506 |
| Alcoa | Blount County | 14,336 |
| Atoka | Tipton County | 10,787 |
| Ashland City | Cheatham County | 5,777 |
| Apison | Hamilton County | 4,842 |
| Algood | Jackson County | 4,199 |
| Alamo | Crockett County | 2,352 |
| Adamsville | McNairy County | 2,079 |
| Ardmore | Giles County | 1,251 |
| Altamont | Grundy County | 1,220 |
| Atwood | Carroll County | 973 |
| Alexandria | DeKalb County | 958 |
| Adams | Robertson County | 679 |
| Allardt | Fentress County | 616 |
| Auburntown | Cannon County | 295 |
| Andersonville | Anderson County | 253 |