| Business | Phone |
| Maud S Sherwood Elem School Smith Ave, Islip 11751 | (631) 859-2200 |
| Commack Elementary School 300 Commack Rd, Islip 11751 | (631) 859-2320 |
| Commack Road Elementary School Commack Rd, Islip 11751 | (631) 859-2200 |
| Islip High School 2508 Union Blvd, Islip 11751 | (631) 859-2220 |
| Islip Middle School 211 Main St, Islip 11751 | (631) 859-2280 |
| Islip Public School Dist 215 Montauk Hwy, Islip 11751 | (631) 859-2200 |
| Islip School Age Child Care Wingenhauppauge Rd, Islip 11751 | (631) 581-6041 |
| Sherwood Elementary School 301 Smith Ave, Islip 11751 | (631) 859-2340 |
| Wing Elementary School 1 Winganhauppauge Rd, Islip 11751 | (631) 859-2350 |