4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lawrenceburg | 1 | 12,231 | 11,636 | 0.98% | 966 | 13 | City |
| Loretto | 2 | 1,832 | 1,737 | 1.05% | 484 | 4 | City |
| St. Joseph | 3 | 827 | 790 | 0.85% | 220 | 4 | City |
| Ethridge | 4 | 568 | 533 | 1.25% | 493 | 1 | Town |
Lawrenceburg is the largest city in Lawrence County, with a population of 12,231.
Ethridge is the smallest city in Lawrence County, with a population of 568.
There are 4 cities in Lawrence County, Tennessee.