List of Costco Stores in Sun Prairie, WI Outlet Note Regular Brands Costco Wisconsin Sun Prairie 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 - Sun Prairie 2850 Hoepker Rd (608) 825-4001 People Also Viewed