Greenland Post Office Contact Information
Address, Phone Number, and Hours for an Post Office in Mass City, Michigan.
About Greenland Post Office
The Greenland Post Office, located in Mass City, MI, is a branch location of the United States Postal Service (USPS) that serves the Mass City community. The customer service postal facility offers mail and package delivery services, P.O. box services, and passport services. The USPS operates as an independent agency within the federal government, supported entirely by revenues generated through its operations.
Interested parties may contact Post Office for questions about:
- Mass City, Michigan Post Office hours and locations
- PO Box services in Mass City
- Mail and package delivery services
- Postage rates
- Passport services
- Ontonagon County, Michigan Post Office jobs and employment