Data collected by United States government agencies, plus private health and demographic organizations, are assembled to provide reliable information regarding trends and projections of births, migration, and other indicators of school enrollment. The report, intended for educational planners, provides an overview of future school enrollment trends, and, wherever possible, the latest data available for specific states and regions, as well as age, ethnic, and demographic groups. Four pages of research highlights precede the following sections: (1) enrollment trends and projections; (2) school-age population trends and projections; (3) state populations; (4) immigration; (5) births and fertility; and (6) student population in the year 2000 A.D. Among the research highlights are predictions that, between 1987 and 1992, public K-8 enrollment will increase by 10 percent, and grades 9-12 enrollment will decrease by 7 percent; and by the year 2000 approximately 25 percent of school-age children will come from economically disadvantaged backgrounds. Twelve figures are dispersed in the text, and the appendix, almost half of the report, contains 35 detailed tables. Appended are 35 references. (MLF).