Post Offices in & near Grenville, South Dakota. Operating hours, locations, phone/fax number, services information.
Post Office in Grenville, South Dakota on Kosciusko Ave. Operating hours, phone number, services information, and other locations.
Address: 915 Kosciusko Ave, Grenville, SD 57239
Phone: 605-486-4804
Fax: 605-357-4906
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
