Post Offices in & near Mackay, Idaho. Operating hours, locations, phone/fax number, services information.
Post Office in Mackay, Idaho on S Main St. Operating hours, phone number, services information, and other locations.
Address: 111 S Main St, Mackay, ID 83251
Phone: 208-588-2679
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457