Data on 1984 college and university enrollments and trends since 1981 are presented, based on the Higher Education General Information Survey. Information is provided on higher education enrollments by control and level of institution, student sex, and full-time and part-time attendance status. Trends in enrollment during 1981-1984 for the 50 states and the District of Columbia are included, also with data for undergraduate, graduate, unclassified, and first-professional students. The following types of postsecondary institutions are included: public, private, private nonprofit, and proprietary. Schools are also classified as universities, other four year, or two year institutions. Highlights include: the number of students attending college declined in fall 1984, down 1.8% from 1983; enrollments were stable from 1981 to 1983; in 1984 two year institutions reported an enrollment decrease of 4.1%, following a decrease of 1% the previous year; two year colleges enrolled over 37% of the student population; enrollments in universities and other four year institutions were down less than 1% in 1984; and from fall 1983 to fall 1984, public institutions reported a 2.3% decrease in enrollment, while private institution enrollment remained almost unchanged. (SW)