Answer : A good place to start when looking up universities who offer interior design is the Design Colleges and Universities website.
There are also a couple of major curricular institutes in the United States that specialize exclusively in Fashion Merchandising. At one end, there's Philadelphia University (PA), which offers a Bachelor of Science degree with majors in apparel merchandising or fashion merchandising. At the other extreme, there's New York Institute of Technology (NY) and California College of Arts & Crafts (CA). Within these three disciplines you'll find every possible combination related to interior design within their product merchandist studies as well as traditional internships overseas, where each discipline can be applied to both domestic and international contexts.