6 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Jefferson City | 1 | 8,983 | 8,428 | 1.25% | 1,281 | 7.01 | City |
| Dandridge | 2 | 3,789 | 3,359 | 2.32% | 621 | 6.10 | Town |
| Strawberry Plains | 3 | 3,700 | 1,919 | 7.15% | 884 | 4.19 | CDP |
| White Pine | 4 | 2,587 | 2,546 | 0.31% | 901 | 2.87 | Town |
| New Market | 5 | 1,407 | 1,346 | 0.86% | 332 | 4.23 | Town |
| Fairgarden | 6 | 494 | 406 | -0.4% | 285 | 1.73 | CDP |
Jefferson City is the largest city in Jefferson County, with a population of 8,983.
Fairgarden is the smallest city in Jefferson County.
There are 6 cities in Jefferson County, Tennessee.