List of US Post Office Stores in Okreek, SD Outlet Note Regular Brands US Post Office South Dakota Okreek Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Okreek 1 Se 1st St,Okreek,Sd,57563 (605) 856-2651 People Also Viewed