| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lawrenceburg | 1 | 12,369 | 11,634 | 1.09% | 977 | 13 | City |
| Loretto | 2 | 1,832 | 1,728 | 1.05% | 484 | 4 | City |
| St. Joseph | 3 | 837 | 792 | 0.97% | 222 | 4 | City |
| Ethridge | 4 | 570 | 529 | 1.24% | 494 | 1 | Town |
Lawrenceburg is the largest city in Lawrence County, with a population of 12,369.
Ethridge is the smallest city in Lawrence County, with a population of 570.
There are 4 cities in Lawrence County, Tennessee.