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Stony Brook Post Office
Harbor Crescent
129 Main Street, Stony Brook, NY 11790
(800) 275-8777
Full Service: Monday - Friday : 9:00 AM - 5:00 PM
Full Service: Saturday : 9:00 AM - 1:00 PM
Postal and Passport Service. Full assortment of greeting cards, postage and packing materials, and P.O. Boxes. Mechanical eagle in pediment flaps its wings on the hour, 8 am- 8 pm
![](https://www.stonybrookvillage.com/wp-content/uploads/2016/08/divider.png)
![](https://www.stonybrookvillage.com/wp-content/uploads/2016/08/divider.png)