Founded in 1875, Lawrence County is one of 66 counties in the state of South Dakota. Historically, Lawrence County was formed from unorganized territory. The city of Deadwood is the county seat. With FIPS code of 81, Lawrence County has a population of 26,165 and area of 800 square miles (2,072 km2).
List of all cities in Lawrence County, SD alphabetically
| City/Town | Postal Code | Area Code |
| Black Hills State University, SD | 57799 | 605 |
| Central City, SD | 57754 | 605 |
| Deadwood, SD | 57732 | 605 |
| Englewood, SD | 57754 | 605 |
| Lead, SD | 57754 | 605 |
| Nemo, SD | 57759 | 605 |
| Pluma, SD | 57732 | 605 |
| Roubaix, SD | 57732 | 605 |
| Saint Onge, SD | 57779 | 605 |
| Savoy, SD | 57754 | 605 |
| Spearfish, SD | 57783 | 605 |
| Spearfish, SD | 57799 | 605 |
| Spearfish Canyon, SD | 57754 | 605 |
| Terraville, SD | 57754 | 605 |
| Terry Peak, SD | 57754 | 605 |
| Tilton, SD | 57754 | 605 |
| Trojan, SD | 57754 | 605 |
| Whitewood, SD | 57793 | 605 |