| Business | Phone |
| Altmar Parish High School 639 County Route 22, Parish 13131 | (315) 625-5220 |
| Altmar-Parish Middle School 640 County Route 22, Parish 13131 | (315) 625-5200 |
| Altmar-Parish-Williamstown Adm 639 County Route 22, Parish 13131 | (315) 625-5250 |
| Parish Elementary School 25 Union St, Parish 13131 | (315) 625-5270 |