List of Costco Stores in Middleton, WI Outlet Note Regular Brands Costco Wisconsin Middleton 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 - Middleton 2150 Deming Way (608) 824-3950 People Also Viewed