Vietnam has a strong public postsecondary education sector that has only recently begun to experience growth in nonpublic institutions. I investigate how the growth of nonpublic institutions may be related to stratification in Vietnam. I find that these institutions are more likely to serve more advantaged students from South Vietnam. Students pay higher costs to attend them; however, they choose more lucrative fields, perhaps as a way to ensure good returns to this investment. This research suggests that as the private sector in Vietnam expands, the influence of family background and region of residence on postsecondary attendance may grow. (Contains 3 tables and 1 footnote.)