List of Costco Stores in Waterbury, CT Outlet Note Regular Brands Costco Connecticut Waterbury 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 - Waterbury 3600 E Main St (203) 596-9967 People Also Viewed