| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Jefferson City | 1 | 9,254 | 8,419 | 1.66% | 1,320 | 7 | City |
| Dandridge | 2 | 4,070 | 3,355 | 3.12% | 667 | 6 | Town |
| White Pine | 3 | 2,630 | 2,547 | 0.42% | 916 | 3 | Town |
| New Market | 4 | 1,443 | 1,373 | 0.84% | 341 | 4 | Town |
Jefferson City is the largest city in Jefferson County, with a population of 9,254.
New Market is the smallest city in Jefferson County, with a population of 1,443.
There are 4 cities in Jefferson County, Tennessee.