| Business | Phone |
| Williamson Central School Dist 4184 Miller St, Williamson 14589 | (315) 589-9661 |
| Williamson Elementary School 6036 Highland Ave, Williamson 14589 | (315) 589-9668 |
| Williamson Middle School 4184 Miller St, Williamson 14589 | (315) 589-9665 |
| Williamson Senior High School 5891 State Route 21, Williamson 14589 | (315) 589-9621 |