ISLIP POST OFFICE 11751

Islip Post Office Hours


Retail Hours

Monday-Friday 9:00am - 5:00pm
Saturday 9:00am - 1:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Saturday 9:00am - 4:00pm
Sunday Closed

Monday-Friday 9:00am - 5:00pm
Saturday 9:00am - 1:00pm
Sunday Closed

Lobby Hours

Monday-Friday 5:30am - 5:45pm
Saturday 5:30am - 4:00pm
Sunday Closed

Monday-Friday 5:30am - 5:45pm
Saturday 5:30am - 4:00pm
Sunday Closed

PO Box Delivery Time

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Celina Lopez (Postmaster) celina.lopez@usps.gov
309 Main St Unit 3
Islip, NY 11751

The Islip Post Office is located in the state of New York within Suffolk County. This location serves 14,961 Islip residents with a median income of $90,986. It's estimated that approximately 23,879 packages pass through this post office each year.

Islip Post Office Location


Islip New York Local Links