| Business | Phone |
| Iberville Health Unit 24705 Plaza Dr, Plaquemine 70764 | (225) 687-9021 |
| Marine Maintenance 61170 Bayou Rd, Plaquemine 70764 | (225) 659-2613 |
| Plaquemine Lock State Hstrc 57730 Main St, Plaquemine 70764 | (225) 687-7158 |
| Representative Kg St Germain 58025 Meriam St, Plaquemine 70764 | (225) 687-2410 |