| Business | Phone |
| Us Consolidated Farm Svc Agcy 334 N 9th St, Columbus 59019 | (406) 322-5359 |
| Stillwater Cnty Justice-Peace 400 N 3rd St, Columbus 59019 | (406) 322-8040 |
| Stillwater Cnty Juvenile Prbtn 400 N 3rd St, Columbus 59019 | (406) 322-8045 |
| Stillwater County Appraisal 400 N 3rd St, Columbus 59019 | (406) 322-8015 |
| Stillwater County Commissioner 400 N 3rd St, Columbus 59019 | (406) 322-8010 |
| Stillwater County District Ct 400 N 3rd St, Columbus 59019 | (406) 322-8030 |
| Stillwater County Extension 400 N 3rd St, Columbus 59019 | (406) 322-8035 |
| Stillwater County Ofc-Public 43 W 4th Ave N, Columbus 59019 | (406) 322-5331 |
| Stillwater County Recorder 400 W 3rd Ave N, Columbus 59019 | (406) 322-8000 |
| Stillwater County Sanitarian 809 E 4th Ave N # B, Columbus 59019 | (406) 322-8055 |
| County Shops 865 Highway 10, Columbus 59019 | (406) 322-5335 |