| Business | Phone |
| Nassakeag Elementary School 490 Pond Path, Setauket 11733 | (631) 474-7650 |
| Paul J Gelinas Jr High School 25 Mud Rd, Setauket 11733 | (631) 474-7560 |
| Setauket Elementary School 134 Main St, Setauket 11733 | (631) 474-7690 |
| Three Village Board-Education Nichols Rd, Setauket 11733 | (631) 474-7522 |
| Three Village Central District 200 Nicolls Rd, Setauket 11733 | (631) 474-7514 |
| Three Village Central School 200 Nicolls Rd, Setauket 11733 | (631) 474-7515 |
| Ward Melville High School 380 Old Town Rd, Setauket 11733 | (631) 474-7700 |