Post Offices

There are three post offices in the East Islip School District:

East Islip Post Office
11 Greenwood Ave., East Islip, NY 11730
631-581-7807

Islip Terrace Post Office
136 Carleton Ave., Islip Terrace, NY 11752
631-581-7894

Great River Post Office
62 River Rd., Great River, NY 11739
631-581-7680