Post Offices in & near Owosso, Michigan. Operating hours, locations, phone/fax number, services information.
Post Office in Owosso, Michigan on N Washington St. Operating hours, phone number, services information, and other locations.
Address: 319 N Washington St, Owosso, MI 48867
Phone: 989-723-2929
Fax: 989-723-2383
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
