4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lawrenceburg | 1 | 12,350 | 11,636 | 0.97% | 975 | 13 | City |
| Loretto | 2 | 1,851 | 1,737 | 1.04% | 489 | 4 | City |
| St. Joseph | 3 | 835 | 790 | 0.97% | 222 | 4 | City |
| Ethridge | 4 | 575 | 533 | 1.23% | 499 | 1 | Town |
Lawrenceburg is the largest city in Lawrence County, with a population of 12,350.
Ethridge is the smallest city in Lawrence County, with a population of 575.
There are 4 cities in Lawrence County, Tennessee.