Answer : The best university for students wanting to major in interior design would be Pratt Institute.
Other universities would be Rhode Island School of Design, Savannah College of Art and Design.
Yale University has a program called the Forum on Global Interior Architecture and Consumer Product Design which offers Masters degree programs in both areas as well as Doctorate degrees for students who already have a master's degree. Yale also has an undergraduate minors available for individual study at the bachelor level in Fine Arts (Interior Architecture) and Literature, Language & Culture (Consumer Studies). At California College of the Arts, San Francisco Conservatory of Music, Parsons New School for Independent Study it is possible to minor or double major with their Interior Architecture program.