Central Islip Post Office

110 E Suffolk Ave, Central Islip, NY 11722

Contact Numbers

Phone: 631-234-0547
Fax: 631-234-7429
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 2:00pm
Sunday Closed

Passport Appointment Hours*

Monday 9:30am - 2:30pm
Tuesday 9:30am - 2:30pm
Wednesday 9:30am - 2:30pm
Thursday 9:30am - 2:30pm
Friday 9:30am - 2:30pm
Saturday 10:00am - 12:00pm
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 10:00am - 2:00pm
Tuesday 10:00am - 2:00pm
Wednesday 10:00am - 2:00pm
Thursday 10:00am - 2:00pm
Friday 10:00am - 2:00pm
Saturday Closed
Sunday Closed

  • 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)
  • Packaged Stamps
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • Lot Parking
  • Passport Appointment Hours

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Hauppauge
960 Wheeler Rd
1.3 miles away

Federal Court House
101 Federal Plz
1.4 miles away

Islip Terrace
136 Carleton Ave
1.9 miles away

Brentwood
25 2nd Ave
2.3 miles away

Reviews

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I have gone to this post office quite a few times and you have an employee there that is rude, not helpful, never smiles. He usually works in the cubicle all the way to the left side (my left side). He is a heavy set, miserable man and I’m sure I can’t be the first to complain. I think his name is Robert. He makes your establishment look bad. He needs to go ASAP.
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I always have a problem with the post office in Suffolk Ave in central Islip and mail is always late and their cutting my cable electric off
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The short Mexican guy there is so disrespectful, I think his name is Robert, he has absolutely no manners, he is not fit to serve the public at all, he needs to be remove , give that post office a bad name
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Very unfriendly worker older gentlemen dosen't seem to care to help customers I need help and he answered me as thought I was an inconvenience to help me mail my package. Went to another post office where they were much more pleasant and willing to help me.
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I writing to put in a complaint about the postman that deliveries on Brightside Ave, Route in Central Islip. I continue to get my neighbor's mail. The postman refuses to do his job. Today March 20, 2020 the postman gave me all of my neighbor's mail. He continues to do this, which is very irresponsible.
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El 28 de octubre compre un buzon para mi correo. y esmas de un mes y no han puesto ningun correo en el buzon.he llamado dos veces y no tengo respuesta que me llaman luego pero no es verdad he visitado la oficina igual no obtengo respuesta que tengo que hacer para conseguir el correo? Discrimination?
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Upon my first visit to the post office in Central Islip NY, I was called to the counter by someone who was clearly agitated by the name Michele Gordon a supervisor within the Central Islip Post Office. The reason for me being there was to change my address since I had not done so recently although I changed the address on my license here in Suffolk County New York. I was told by the person to which I live with, that she had changed my address, since that did not seem correct I decided to check for myself if my address had been changed, which it wasn't,thus the visit. Michele again clearly agitated upon my arrival, had a brief exchange of "need some help here" with a co- worker at the counter and thus was agitated before I even arrived. She basically refused to do her job concerning imputing a change of address form into the computer with a supplemental for previous addresses, which I felt was needed. Because of a problem of Identity theft and other issues, which I did not feel at the time I needed to discuss, she refused to accept my change of address with the attachment or the form by itself, handed it back to me and walked away. Thus I asked for her name, since obviously there have been other complaints, Sincerely, Patrick A. Miller
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