Post offices in the 11787 ZIP code of Smithtown, NY

The ZIP code 11787, situated in Smithtown, NY, includes 1 post office within the city of Smithtown. The listed operating hours indicate when retail services are available, providing a time when postal employees are available to assist customers. Often, the lobby areas remain open longer, granting access to PO boxes, package drop-off areas, and self-service Automated Postal Center (APC) machines for stamp purchases.The compilation is sorted first by city and then by the name of the post office, with Street View pictures of the post offices included whenever possible. Please contact us if you find an error, so that we can correct it.

Street View Image of Smithtown Post Office in Smithtown, NY

Smithtown Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
25 Route 111 Smithtown, NY 11787-3743

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Open hours
Day Open Close
Monday 9:00 AM 5:00 PM
Tuesday 9:00 AM 5:00 PM
Wednesday 9:00 AM 5:00 PM
Thursday 9:00 AM 5:00 PM
Friday 9:00 AM 5:00 PM
Saturday 9:00 AM 1:00 PM
Sunday Closed
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