List of Smoothie King Stores in St Charles, MO Outlet Note Regular Brands Smoothie King Missouri St Charles Rating 4.9 based on 74 votes Official Website http://www.smoothieking.com/ Products Snacks Smoothies Catering NameAddressPhone Name/Address/Phone Smoothie King outlet - St Charles 4765 Highway N # C (636) 939-5464 Smoothie King outlet - St Charles 920 S 5th St (636) 724-5464 People Also Viewed