Projections for North Dakota postsecondary education enrollment for the 1980s are presented. Attention is directed to population-related factors such as the number of live births, patterns of migration, elementary school enrollment, the number of high school graduates, and the size of the adult population. Other factors affecting postsecondary enrollment, such as postsecondary entrance rates, tuition reciprocity among states, class progression rates, and economic factors, are also explored. Actual enrollment by grade by county from 1972-73 through 1979-80 was analyzed to produce a series of grade progression rates. The selected progression rates were applied to the fall 1979 enrollment to produce projections of elementary and secondary enrollment in 1980. The model yielded high school graduate projections for 1980 through 1995. A strategy was devised to project postsecondary enrollment for the state of North Dakota and the 13 institutions. Six categories of students are projected with special attention given to resident undergraduates. For each category of students, a projection of full-time enrollment as well as headcount was made. Undergraduate class progression rates were constructed in the same manner as the grade progression rates for the elementary/secondary model. Projections were also made for nonresidents for each school level, for special and unclassified students, for graduate and professional students, and for full- and part-time students. (SW)