Sumas 98295 mailboxes and post offices

There are 3 United States Postal Service post boxes and offices available to the public in Sumas, WA 98295. You can use any one of these locations to mail your letter or small package via USPS. For additional collection boxes in neighboring communities, see the list of post boxes in Washington.

Public Collection Box
104 W Madison St
Mailbox in Post Office Lobby
108 Blair Dr