Tel. (631) 368-3600 About Us As the edge of the sun rises over Eastern Long Island, there is a family doing what we have done for three generations. Taking care of Oak Tree Farm Dairy. Oak Tree Farm Dairy has been on Long Island since 1939. And while the cows have moved upstate, the packaging plant is still here, run by the same people who take the quality of their products personally. Oak Tree Farm Dairy is still a family-run business, celebrating the birthdays, marriages and anniversaries of the entire Oak Tree Farm Dairy family. And since we give Oak Tree Milk to our own children, we take extra pride in knowing this carton of milk is as fresh as it can be. Oak Tree Milk; for over sixty years, another good morning product from Long Island's only Dairy. ORDERS Call (631) 368-3600 (631) 368-8050 x123 DELIVERIES / ROUTING Call (631) 368-8050 x173 or x171 QUICK LINKS Get Directions What Our Customers Say Contact Us 544 Elwood Road East Northport, NY 11731 Tel. (631) 368-3600