Post Offices in & near Sherman, South Dakota. Operating hours, locations, phone/fax number, services information.
Post Office in Garretson, South Dakota on N Main Ave. Operating hours, phone number, services information, and other locations.
Address: 641 N Main Ave, Garretson, SD 57030
Phone: 605-594-3405
Fax: 605-357-4906
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457