List of Boost Mobile Stores in Watertown, SD Outlet Note Regular Brands Boost Mobile South Dakota Watertown Rating 4.5 based on 100 votes Official Outlet www.boostmobile.com Official Website http://www.boostmobile.com/ Products Prepaid Phone Service NameAddressPhone Name/Address/Phone Boost Mobile outlet - Watertown 1300 9th Ave SE (605) 882-3090 Boost Mobile outlet - Watertown 2000 9th Ave SE (605) 882-0717 Boost Mobile outlet - Watertown 1201 29th St SE (605) 882-0801 People Also Viewed