Post Offices in & near Onamia, Minnesota. Operating hours, locations, phone/fax number, services information.
Post Office in Onamia, Minnesota on Main St. Operating hours, phone number, services information, and other locations.
Address: 600 Main St, Onamia, MN 56359
Phone: 320-532-3146
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457