Islip Post Office

309 Main St Unit 3, Islip, New York 11751
Phone: 6315817931
Toll-Free: 1-800-Ask-USPS® (275-8777)
Fax:
Phone: 6315817931
TTY: 877-889-2457

Islip Post Office is located in Islip, Suffolk, NY. Check out the opening hours, contacts and services provided by Islip Post Office. You can also look through reviews on this Post Office and leave your own review.

Retail Hours

Day of the weekOpening hours
Monday9:00 am - 5:00 pm
Tuesday9:00 am - 5:00 pm
Wednesday9:00 am - 5:00 pm
Thursday9:00 am - 5:00 pm
Friday9:00 am - 5:00 pm
Saturday9:00 am - 1:00 pm
SundayClosed

Bulk Mail Acceptance Hours

Day of the weekOpening hours
Monday9:00 am - 2:00 pm
Tuesday9:00 am - 2:00 pm
Wednesday9:00 am - 2:00 pm
Thursday9:00 am - 2:00 pm
Friday9:00 am - 2:00 pm
Saturday9:00 am - 12:00 pm
SundayClosed

Lobby Hours

Day of the weekOpening hours
Monday5:00 pm
Tuesday5:00 pm
Wednesday5:00 pm
Thursday5:00 pm
Friday5:00 pm
Saturday3:00 pm
SundayClosed

Services in Islip Post Office

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street Parking
  • Passport Appointment Hours

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