Information provided by the Maryland State Board for Higher Education permitted Prince George's Community College (PGCC) to determine the proportion of Prince George's County residents attending various colleges and universities in the state and to analyze trends in PGCC's market shares from 1982 to 1987. Findings regarding full- and part-time undergraduates, new full-time freshmen, and black new full-time freshmen indicate that: (1) 26,400 residents of Prince George's County were attending Maryland community colleges and universities as undergraduates in fall 1986, representing a 2.7% decrease from the 27,142 residents enrolled in fall 1985; (2) 11,923 county residents were attending college full-time, and 14,477 were enrolled part-time; (3) statewide, the community colleges' share of full-time undergraduate enrollments was 25%, while their share of part-time enrollments was 67%; (4) 44% of the 1986 students were enrolled at PGCC; (5) PGCC enrolled three of every five county residents attending a Maryland college part-time for credit; (6) nearly 42% of all beginning full-time students in the county started their education at PGCC; and (7) of the 8,664 black county residents attending college, 4,683 (54%) were attending PGCC. (EJV)