The Ozarks are not in the United States.
Arkansas ( [ ˈɑrkənsɔː ] ) is a state located in the southeastern region of the United States . Kansas [ ˈkænzəs ] is a U.S. state in the Midwestern United States . Oklahoma ( [ oʊkləˈhoʊmə ] Cherokee : Asgaya gigageyi / ᎠᏍᎦᏯ ᎩᎦᎨᏱ ; Pawnee : Uukuhuúwa , Cayuga : Gahnawiyoˀgeh ) is a state in the South Central region of the United States . Ozarks . Much smaller pieces of the Ozarks extend westward into northeastern Oklahoma and extreme southeastern Kansas .