This report presents the results of the 21st annual study of application and enrollment patterns of transfer students within the State University of New York (SUNY). The report includes data on transfer students moving from two-year colleges to other two-year colleges, from senior institutions to two-year colleges, and from two-year colleges to senior institutions. Following a brief introduction, detailed data tables are presented in the following sections: (1) institutional summary tables, which provide data on headcount enrollments and educational background of transfer students, both systemwide and by individual institution; (2) coordinating area summary tables; (3) distribution of transfer students by location and type of prior institution; (4) students that have transferred from other SUNY institutions; (5) students that have transferred from other New York institutions; (6) transfer students from outside New York State; (7) transfer trends pertaining to enrollment, associate degree, and institution types; (8) undergraduate admissions tables; and (9) associate degrees granted by SUNY two-year colleges. Report highlights indicate that a total of 33,071 transfer students enrolled in SUNY in fall 1990, representing a 7% increase from the previous fall; and that 41% of SUNY transfer students are enrolled at two-year institutions. Appendixes provide a map of state university institutions, a chronology of dates of establishment of SUNY institutions, and a list of SUNY publications. (WJT)