4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Erwin | 1 | 6,008 | 6,065 | -0.2% | 1,456 | 4 | Town |
| Unicoi | 2 | 3,853 | 3,810 | 0.21% | 238 | 16 | Town |
| Banner Hill | 3 | 1,590 | 1,396 | 0.44% | 1,137 | 1 | CDP |
| Embreeville | 4 | 1,248 | 1,032 | 7.22% | 929 | 1 | CDP |
Erwin is the largest city in Unicoi County, with a population of 6,008.
Embreeville is the smallest city in Unicoi County, with a population of 1,248.
There are 4 cities in Unicoi County, Tennessee.