| Business | Phone |
| Sullivan County Circuit Clerk 109 N Main St, Milan 63556 | (660) 265-4717 |
| Sullivan County Commissioners 109 N Main St, Milan 63556 | (660) 265-3434 |
| Sullivan County Juvenile Ofc Court House # 26, Milan 63556 | (660) 265-4808 |
| Sullivan County Public Adm 109 N Main St, Milan 63556 | (660) 265-5333 |
| Sullivan County Recorder-Deeds 101 N Main St, Milan 63556 | (660) 265-3630 |
| Sullivan County Road & Bridge 54176 Highway C, Milan 63556 | (660) 265-3641 |