ChamberMaster Template Costco - Helena Location Retail - Warehouse ClubsDepartment, Discount & Outlet Stores Costco - Helena Location Visit Website 2195 East Custer Ave Helena, MT 59602 (406) 495-7042 (406) 495-7044 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.