Post Offices List in Edmunds County, South Dakota:
| Bowdle Post Office | 2086 Main St, Bowdle, SD 57428 |
| Hosmer Post Office | 102 E Main St, Hosmer, SD 57448 |
| Ipswich Post Office | 336 1st Ave, Ipswich, SD 57451 |
| Roscoe Post Office | 206 N Main St, Roscoe, SD 57471 |