Mackay Post Office Contact Information
Address, Phone Number, and Hours for an Post Office in Mackay, Idaho.
About Mackay Post Office
The Mackay Post Office, located in Mackay, ID, is a branch location of the United States Postal Service (USPS) that serves the Mackay 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:
- Mackay, Idaho Post Office hours and locations
- PO Box services in Mackay
- Mail and package delivery services
- Postage rates
- Passport services
- Custer County, Idaho Post Office jobs and employment