| Business | Phone |
| Emergency Preparedness 58030 Meriam St, Plaquemine 70764 | (225) 687-5140 |
| Honorable James Best 58050 Meriam St # 311, Plaquemine 70764 | (225) 628-5532 |
| Extension Service 23640 Peters St, Plaquemine 70764 | (225) 687-5155 |
| Iberville Jury Commissions Office 58050 Meriam St, Plaquemine 70764 | (225) 687-5224 |
| Iberville Maintenance Barn 59705 Bayou Rd, Plaquemine 70764 | (225) 687-5148 |
| Iberville Narcotics Task Force 23540 Railroad Ave, Plaquemine 70764 | (225) 687-5296 |
| Iberville Parish Animal Cntrl 59815 Bayou Rd, Plaquemine 70764 | (225) 687-5881 |
| Iberville Parish Bldg Permit 58030 Meriam St, Plaquemine 70764 | (225) 687-5150 |
| Iberville Parish Community 58050 Meriam St, Plaquemine 70764 | (225) 687-5243 |
| Iberville Parish Coroner Ofc 58038 Fort St, Plaquemine 70764 | (225) 687-8555 |
| Iberville Parish Council Trsm 23405 Church St, Plaquemine 70764 | (225) 687-2642 |
| Iberville Parish Sanitarian 24705 Plaza Dr, Plaquemine 70764 | (225) 687-5885 |
| Iberville Substance Abuse Ctr 24705 Plaza Dr B, Plaquemine 70764 | (225) 687-5889 |
| Iberville Parish Utility Dept 59805 Bayou Rd, Plaquemine 70764 | (225) 687-5152 |
| Iberville Public Defenders Ofc 58050 Meriam St, Plaquemine 70764 | (225) 687-5215 |
| Iberville Registrer Of Voters 58050 Meriam St, Plaquemine 70764 | (225) 687-5201 |