In the present study, 805 Greek students participated by filling in self-report questionnaires studying depression (Center for Epidemiological Studies Depression Scale), general health status (General Health Questionnaire), general psychopathology (Symptom Checklist-90-R), and personal demographic features. Some of the more prevalent findings indicate high depression rates and poor mental health. Significant differences in students' mental health were found according to gender, age, parents' educational level, personal work, permanent residence, preference of the school attended, and hospitalization owing to severe health problems. (Contains 3 tables.)