This document provides enrollment trend information for public four-year colleges and universities for the period fall 1990 through fall 1996. Several trends are highlighted: (1) during the 1990s, American Indian, Asian, and Hispanic enrollment increased by more than 30 percent and African American enrollment by 17 percent; white non-Hispanic enrollment fell 8 percent; (2) female enrollment increased by 43 percent for Asians, 36 percent for Hispanics, and 20 percent for African Americans; white female enrollment fell 6 percent; (3) enrollment of students age 50 and over rose nearly 12 percent, while that of traditional-aged students declined about 1 percent; (4) undergraduate part-time enrollment fell nearly 8 percent, but increased for graduate and first professional students by 7 and 4 percent, respectively; (5) enrollment growth was limited to institutions in the Southeast, Southwest, and Rocky Mountain regions; in New England enrollment fell by 8 percent. Report sections provide detailed data for enrollment by: race/ethnicity, race/ethnicity and sex, age, academic grade level and attendance status, and geographic region. Appended tables list total enrollment at American Association of State Colleges and Universities and National Association of State Universities and Land-Grant Colleges for fall 1990 and fall 1996; a list of tribal land-grant institutions is also provided. (Contains 19 references.) (CH)