Grant County Post Office

Find Grant County Nebraska post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Ashby Post Office 102 Main St Ashby NE 69333 308-577-6359


Hyannis Post Office 116 Main Avenue Hyannis NE 69350 308-458-2792

Whitman Post Office 100 Corrother St Whitman NE 69366 308-544-6454

Post Offices by City

What is a Post Office?

A post office is a local branch of the United States Postal Service, where mail is received and dispatched to individuals and businesses in a given community. A post office usually has postal clerks who receive and process mail, and it's also the place from which mail carriers pick up mail they deliver on their local routes. The office handles USPS business, including mail and package sorting, delivery and forwarding, sales of stamps and other postal supplies, change-of-address requests, and other administrative functions.

In some small communities, the local post office may be located within a commercial business. In communities both large and small, a post office may serve as a local passport office at which passport applications are received and undergo initial processing.