Post Offices in & near Hosmer, South Dakota. Operating hours, locations, phone/fax number, services information.
Post Office in Hosmer, South Dakota on E Main St. Operating hours, phone number, services information, and other locations.
Address: 102 E Main St, Hosmer, SD 57448
Phone: 605-283-2270
Fax: 605-357-4906
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
