1 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Barbourville | 1 | 3,047 | 3,215 | -1.1% | 1,148 | 3 | City |
Barbourville is the largest city in Knox County, with a population of 3,047.
Barbourville is the smallest city in Knox County, with a population of 3,047.
There is 1 city in Knox County, Kentucky.