Six tables present data on nationwide school enrollment among various socioeconomic and demographic groups in 1980 and earlier years. The data reveal no significant changes from 1979, according to the authors, except for an increase in preprimary enrollment and a decrease in college enrollment among people over 35. The major educational trends of the 1970s continued into 1980, particularly the decline in elementary-secondary enrollments and the fluctuation in college enrollment. Three tables give data on 1965-1980 enrollment among persons aged 3 to 34, broken down by educational level, race, Spanish origin, age, sex, or public or private control of the school. The remaining tables cover college enrollment from the 1960s or 1970s to 1980, separating the data by such factors as sex, age, race, Spanish origin, high school graduation, part- or full-time attendance, and graduate, undergraduate, or two-year program level. (RW)