Post Offices in & near Irwin, Idaho. Operating hours, locations, phone/fax number, services information.
Post Office in Irwin, Idaho on Swan Valley Hwy. Operating hours, phone number, services information, and other locations.
Address: 3373 Swan Valley Hwy, Irwin, ID 83428
Phone: 208-483-2204
Fax: 208-483-2204
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
