Eastside Carrier Annex Post Office

does not have retail counter services

This USPS post office is located in Buffalo, NY where the date and time is currently: 3/28/2026, 4:34:44 PM

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Address

1200 William St
Buffalo, NY 14240-9799

Latitude: 42.886485, Longitude: -78.8269299

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Services at Eastside Carrier Annex Post Office

No dedicated parking. Here's what you can do at this location:

Shipping

Carrier Services
Postal carriers deliver and pick up mail and packages along routes serving homes and businesses in this area. You can schedule a free package pickup from your address.

PO Box & Mail

General Delivery
Receive mail without a permanent address. Mail is held at the post office and you pick it up at the counter with a valid ID. Often used by travelers or people between moves.
Hold Mail Pickup
Pick up mail that USPS has been holding while you were away. You can request a hold for up to 30 days through usps.com or at the counter.
Package Pickup (Notice Left)
Pick up a package that couldn't be delivered — the carrier left a slip at your door. Bring the notice and a valid ID.

Other Services

Customer Service Referrals
Staff can help answer questions or direct you to the right resource for issues with mail delivery, address changes, or other USPS services.