Most of the students in the State University System have been admitted to a program that leads to a graduate or undergraduate degree. Out of the 271,337 students in the SUS, however, 15,304, or approximately six percent, are "unclassified" students who are not formally admitted to a degree program. This percentage in fall 2003 represents a decline from over 8% in fall 2000. Since most unclassified students are part-time (84%, compared to 30% of all students), they accounted for less than 3% of all courses taken in 2003-04. The following questions were addressed in this information brief: (1) What is an unclassified student? (2) Why are they taking courses? (3) Who are they? and (4) Where are the unclassified students? Overall, this information brief provides percentages showing that unclassified students are older than the general population, with an average age of 31 compared to 22 for all students. The gender balance and race/ethnicity distribution of unclassified students are roughly similar to the general population, with a slightly lower proportion of black students and slightly higher proportion of Hispanic students. Florida residents accounted for 95% of courses taken by unclassified students. Unclassified students are older than the general population, with an average age of 31 compared to 22 for all students. [This information brief was prepared by Data Analysis and Institutional Research, Division of Colleges and Universities, Florida Department of Education.]