| Business | Phone |
| Minidoka County Auditor 715 G St, Rupert 83350 | (208) 436-7182 |
| Minidoka County Treasurer 715 G St, Rupert 83350 | (208) 436-7188 |
| Motor Vehicle Registration 702 G St, Rupert 83350 | (208) 436-7181 |
| Tax Commission 518 Oneida St, Rupert 83350 | (208) 436-1458 |