Exhibit 21.1 SIGNIFICANT SUBSIDIARIES OF ISLE OF CAPRI CASINOS, INC. WHOLLY-OWNED SUBSIDIARIES STATE OF INCORPORATION Grand Palais Riverboat, Inc. Louisiana IOC Holdings, L.L.C. Louisiana Isle of Capri Bettendorf, L.C. Iowa Louisiana Riverboat Gaming Partnership Louisiana Riverboat Corporation of Mississippi Mississippi St. Charles Gaming Company, Inc. Louisiana PARTIALLY OWNED SUBSIDIARIES Isle of Capri Black Hawk, L.L.C. Colorado