This report examines the trends in Black undergraduate enrollments at Pennsylvania colleges and universities and postsecondary education participation rates for Pennsylvania's Black high school graduating classes for the 1980s. Enrollment trends for all undergraduates, full-time undergraduates, first-time undergraduates and for part-time undergraduates are examined separately. Then the numbers and proportions of Black high school graduates annually continuing their education are examined. Though the focus of the report is on Black students, enrollment trends for White students are also reported for comparison. Highlights of the report's findings include the following: the number of Black full-time students dropped by 8.5 percent, Black student enrollments fell by 24 percent at two-year colleges, by 15.8 percent at four-year private colleges, and by 11.5 percent at State Universities though they increased by 13.5 percent at state-related universities. In contrast, White full-time undergraduate enrollments increased by 11 percent at four-year public universities and community colleges. The numbers of both Black and White students who were enrolled as first-time, full-time students decreased between 1980 and 1989 though the numbers for Black students decreased by almost 19 percent while the numbers of White students decreased by less than 2 percent. (JB)