| Business | Phone |
| Building Dept 202 N Virginia St, Port Lavaca 77979 | (361) 552-9797 |
| City Secretary's Office 202 N Virginia St, Port Lavaca 77979 | (361) 552-9794 |
| Port Lavaca Animal Control 202 N Virginia St, Port Lavaca 77979 | (361) 552-5726 |
| Port Lavaca City Nautical 105 Commerce St, Port Lavaca 77979 | (361) 553-7041 |
| Port Lavaca Finance Office 202 N Virginia St, Port Lavaca 77979 | (361) 552-9793 |
| Port Lavaca Warehouse 628 W George St, Port Lavaca 77979 | (361) 552-1374 |
| Port Lavaca Harbor Master 106 S Commerce St 6, Port Lavaca 77979 | (361) 552-2615 |
| Port Lavaca Nautical Landings 106 S Commerce St, Port Lavaca 77979 | (361) 552-9794 |
| Port Lavaca Projects Manager 202 Virgina St, Port Lavaca 77979 | (361) 552-9798 |
| Port Lavaca Warehouse & Garage 628 W George St, Port Lavaca 77979 | (361) 552-9793 |