List of Costco Stores in Tumwater, WA Outlet Note Regular Brands Costco Washington Tumwater Rating 4.7 based on 76 votes Official Website http://www.costco.com/ Products Handbags Clothing Furniture Jewelry Appliances Electronics Office Products NameAddressPhone Name/Address/Phone Costco outlet - Tumwater 5500 Littlerock Rd SW (360) 357-6580 People Also Viewed