| Business | Phone |
| Prairie Cnty Clerk & Recorde 309 S Garfield, Terry 59349 | (406) 635-5575 |
| Prairie County Co-Op State 409 Spring St, Terry 59349 | (406) 635-5868 |
| Prairie County Extension Svc 217 W Park St, Terry 59349 | (406) 635-2121 |
| Prairie County Fair Office Terry 59349 | (406) 635-5505 |
| Prairie County Justice-Peace 203 S Logan Ave, Terry 59349 | (406) 635-4466 |
| Prairie County Justice-Peace 217 W Park St, Terry 59349 | (406) 635-4466 |
| Prairie County Shop 421 Hoagland Ave, Terry 59349 | (406) 635-5436 |
| Prairie County Weed Supervisor Terry 59349 | (406) 635-4433 |