| Business | Phone |
| 260 Middle Country Rd 260 E Main St, Smithtown 11787 | (631) 724-5922 |
| Accompsett Elementary School 1 Lincoln St, Smithtown 11787 | (631) 382-4150 |
| Boces 26 New York Ave, Smithtown 11787 | (631) 361-3631 |
| Branch Brook Elementary School 15 Ridgeley Rd, Smithtown 11787 | (631) 382-4200 |
| Mt Pleasant Elementary School 33 Plaisted Ave, Smithtown 11787 | (631) 382-4350 |
| Dev Disabilities Institute 99 Hollywood Dr, Smithtown 11787 | (631) 724-1717 |
| Dogwood Elementary School 15 Dogwood Dr, Smithtown 11787 | (631) 382-4250 |
| Forest Brook Elementary Lilac Ln, Smithtown 11787 | (631) 265-3265 |
| Outdoor Ed Lab 810 Meadow Rd, Smithtown 11787 | (631) 360-3652 |
| Hauppauge Pines Elementary Sch 22 Holly Dr, Smithtown 11787 | (631) 543-8700 |
| Ivy League School Inc 211 Brooksite Dr, Smithtown 11787 | (631) 265-4177 |
| Smithtown Central School Dist 26 New York Ave, Smithtown 11787 | (631) 382-2000 |
| Smithtown Christian School Higbie Dr, Smithtown 11787 | (631) 265-3334 |
| Smithtown Elementary School 51 Lawrence Ave, Smithtown 11787 | (631) 382-4500 |
| Smithtown Freshman School 660 Meadow Rd, Smithtown 11787 | (631) 382-2300 |
| Smithtown High School 100 Central Rd, Smithtown 11787 | (631) 382-2900 |
| Torah Academy Of Suffolk Cnty 956 W Jericho Tpke, Smithtown 11787 | (631) 543-6332 |