| Business | Phone |
| Highway Shop 331 W Norton Ave, Salem 57058 | (605) 425-2731 |
| Mc Cook Clerk Of Courts 130 W Essex Ave, Salem 57058 | (605) 425-2781 |
| Mc Cook County & Home Agents 130 E Essex Ave, Salem 57058 | (605) 425-2242 |
| Mc Cook Courthouse Janitor 130 W Essex Ave, Salem 57058 | (605) 425-2654 |
| Mc Cook Director-Equalization 130 E Essex Ave, Salem 57058 | (605) 425-2681 |
| Mc Cook Register Of Deeds 130 W Essex Ave, Salem 57058 | (605) 425-2701 |
| Mc Cook Veterans Svc Officer 130 W Essex Ave, Salem 57058 | (605) 425-2485 |