This report compiles 1974-75 enrollment data for 923 American two-year post-secondary institutions. Comprehended in this report are post-secondary two-year junior and community colleges; multi-purpose technical and/or vocational schools and institutes; and university branch colleges, campuses, and centers. Total enrollment was2,819, 583, a rise of 11.9 percent from 1973-74. Part-time enrollment totalled 1,553,399, a rise of 17.7 percent. Full-time enrollment totalled 1,266,184, a rise of 5.8 percent. Six tables break the data down by type of institution (public, church-affiliated, propietary, or independent), by geographical regions and states, by sex of students, and year in school. Data are also provided on the full-time and total teaching staffs of each of the 923 institutions. The six tables, which make up the bulk of this document, are discussed in a short introductory narrative in which trends are described, and projections are made. The report is intended to be of primary importance in post-secondary higher education planning. The slowing of the freshman flow in 1974-75 provides further evidence of the need for two-year institutions to continue their activity in providing increased educational opportunity for nontraditional and other continuing education students in part-time programs. (Author/NHM)