Post Offices List in Lawrence County, South Dakota:
| Deadwood Post Office | 68 Sherman St, Deadwood, SD 57732 |
| Lead Post Office | 329 W Main St, Lead, SD 57754 |
| Nemo Post Office | 12748 Nemo Rd, Nemo, SD 57759 |
| Saint Onge Post Office | 176 Purl St, Saint Onge, SD 57779 |
| Spearfish Post Office | 120 Yankee St, Spearfish, SD 57783 |
| Whitewood Post Office | 1400 Laurel St, Whitewood, SD 57793 |