This Statistics in Brief describes the undergraduate experiences of students who immigrated to the United States or who had at least one immigrant parent (second-generation Americans). The analysis compares these two groups with all undergraduates (excluding foreign students) and with third-or higher generation American undergraduates whose parents were born in the United States. The findings are based on data from the 2007-08 National Postsecondary Student Aid Study (NPSAS:08), a nationally representative sample of more than 100,000 students enrolled in U.S. postsecondary institutions. NPSAS is the most comprehensive source of national data on the experiences of undergraduates in the United States and includes information on students' academic preparation for college, the types of institutions they attend, and their experiences while enrolled. This Statistics in Brief begins with an overview of immigrant and second-generation American undergraduates nationwide and in the six states for which representative data are available, and then focuses on the most prevalent racial/ethnic groups among these two groups--Asian and Hispanic students. Asian students reported the Far East, Southeast Asia, or the Indian subcontinent as their region of origin, and Hispanic students reported their country or region of origin as Cuba, Mexico, South and Central America, or other Hispanic country or region. Undergraduates in Puerto Rico or who reported that they were of Puerto Rican descent are excluded from the analysis because their immigrant or generational status cannot be determined with available data (see appendix). Puerto Ricans and Other Hispanic Undergraduates are appended. (Contains 5 tables, 14 figures and 16 footnotes.)