| Business | Phone |
| Aquebogue Elementary School 499 Main Rd, Riverhead 11901 | (631) 369-6780 |
| Aquebogue School 499 Main Rd, Riverhead 11901 | (631) 369-6779 |
| Mercy High School 1225 Ostrander Ave, Riverhead 11901 | (631) 727-5900 |
| East End Driving School Inc 131 Roanoke Ave, Riverhead 11901 | (631) 878-2833 |
| H B Ward Technical Center 970 N Griffing Ave, Riverhead 11901 | (631) 369-8100 |
| Phillips Avenue School 141 Phillips Ave, Riverhead 11901 | (631) 369-6786 |
| Pulaski Street School 300 Pulaski St, Riverhead 11901 | (631) 369-6792 |
| Riverhead High School 700 Harrison Ave, Riverhead 11901 | (631) 369-6727 |
| Riverhead Middle School 600 Harrison Ave, Riverhead 11901 | (631) 369-6756 |
| Riverhead School Special Ed 540 E Main St # P, Riverhead 11901 | (631) 369-6800 |
| Riverhead School Trans Dept 700 Osborne Ave, Riverhead 11901 | (631) 369-6720 |
| Roanoke Avenue School 525 Roanoke Ave, Riverhead 11901 | (631) 369-6812 |
| St David's Episcopal Day Schl 573 Roanoke Ave, Riverhead 11901 | (631) 369-8081 |
| St Isidore's School 515 Marcy Ave, Riverhead 11901 | (631) 727-1650 |
| St John The Evangelist School 546 Saint Johns Pl, Riverhead 11901 | (631) 727-4144 |