4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Russellville | 1 | 7,538 | 7,187 | 0.94% | 686 | 10.99 | City |
| Auburn | 2 | 1,663 | 1,597 | 0.79% | 908 | 1.83 | City |
| Adairville | 3 | 888 | 845 | 1.02% | 756 | 1.18 | City |
| Lewisburg | 4 | 789 | 753 | 0.9% | 679 | 1.16 | City |
Russellville is the largest city in Logan County, with a population of 7,538.
Lewisburg is the smallest city in Logan County.
There are 4 cities in Logan County, Kentucky.