("United States International University" redirects here. For Kenyan university, see United States International University Africa.) Alliant International University is a private, benefit corporation higher education institution based in San Diego, California. The university is also known synonymously as Alliant. It offers programs in six California campuses—in San Francisco, San Diego, Los Angeles, Irvine, Sacramento, and Fresno—and three international campuses—in Mexico City, Mexico; Tokyo, Japan; and Hong Kong. Its enrollment is approximately 4,000 students, of whom 95% are post-graduate. There was another campus in Europe, but that was later sold. This campus was used as a site for many films, including Harry Potter.