FI Post Office: Proper USPS Addressing


The Fishers Island Post Office is reminding us that ALL our PACKAGES and LETTERS should be addressed as follows:

Your Name
Your Fishers Island Street Number & Street Name, #Your Box Number*
Fishers Island, NY 06390

*Please use the # (hashtag/number sign) and your Fishers Island PO Box number.  DO NOT write “Box”.

DO THIS for ALL letters and packages, subscriptions and documents.



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With the sheer number of family and friends here during the summer we cannot locate everyone without the Box number, so please do your part.

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  • Do not use 5 Waterfront Park as an address. Anything addressed to 5 Waterfront Park will be charged a forwarding fee as stated in the postal service domestic mail manual. It is possible packages addressed to 5 Waterfront Park may be returned to sender without notice.
  • Please do not makeup addresses as this may also cause delays or returns.
  • If you do not know your Fishers Island 911 address, please contact Allison or me at (631) 788-7835 and we will gladly help you.

If you are off-island and know you have packages coming to the Post Office, please let us know who may pick them up and deliver them to your home. We have limited long-term storage space.

We know how difficult change can be, but this is a coordinated effort between the Post Office, the Fishers Island Ferry District, and all delivery services to better help our customers.

We thank you in advance for your cooperation. Let’s have a great summer season 2021. We certainly deserve it this year!

Kathy Kauffman, Postmaster
Allison Brown, Clerk
Fishers Island Post Office

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