4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Jefferson City | 1 | 9,165 | 8,404 | 1.69% | 1,307 | 7 | City |
| Dandridge | 2 | 3,961 | 3,359 | 3.12% | 650 | 6 | Town |
| White Pine | 3 | 2,593 | 2,545 | 0.35% | 903 | 3 | Town |
| New Market | 4 | 1,429 | 1,364 | 0.92% | 338 | 4 | Town |
Jefferson City is the largest city in Jefferson County, with a population of 9,165.
New Market is the smallest city in Jefferson County, with a population of 1,429.
There are 4 cities in Jefferson County, Tennessee.