| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Algood | 1 | 4,199 | 3,988 | 0.82% | 1,027 | 4 | City |
| South Carthage | 2 | 1,600 | 1,489 | 1.52% | 624 | 3 | Town |
| Gainesboro | 3 | 979 | 933 | 1.03% | 629 | 2 | Town |
Algood is the largest city in Jackson County, with a population of 4,199.
Gainesboro is the smallest city in Jackson County, with a population of 979.
There are 3 cities in Jackson County, Tennessee.