| Business | Phone |
| Calhoun County Isd 525 N Commerce St, Port Lavaca 77979 | (361) 552-9728 |
| Calhoun High School 200 Sandcrab Blvd, Port Lavaca 77979 | (361) 552-3775 |
| Port Lavaca Special Svc 300 Alcoa Dr, Port Lavaca 77979 | (361) 552-9404 |
| Maintenance Warehouse 613 N Colorado St, Port Lavaca 77979 | (361) 552-2664 |
| Flex Ed School 300 Alcoa Dr, Port Lavaca 77979 | (361) 552-7084 |
| Gingerbread School 2202 Half League Rd, Port Lavaca 77979 | (361) 552-5757 |
| Jackson Roosevelt Elementary 1512 Jackson St, Port Lavaca 77979 | (361) 552-3317 |
| Hjm Elementary School Cmplx 605 N Commerce St, Port Lavaca 77979 | (361) 552-5253 |
| Bracketville Alternative Schl 703 N Ann St, Port Lavaca 77979 | (830) 563-9537 |
| Travis Middle School 705 N Nueces St, Port Lavaca 77979 | (361) 552-3784 |