| Business | Phone |
| Us Post Office 25795 475th Ave, Sioux Falls 57104 | (605) 275-6465 |
| Us Post Office 320 S 2nd Ave, Sioux Falls 57104 | (605) 357-5001 |
| Us Post Office 4709 S Technopolis Dr, Sioux Falls 57106 | (605) 000-1111 |
| Us Post Office 630 S Cliff Ave, Sioux Falls 57104 | (605) 000-1111 |