916 college students enrolled in two consecutive years of introductory psychology (1989 and 1990) were administered the Revised UCLA Loneliness Scale at the beginning of the academic year. When controlling for the number of students who withdrew because their grades were poor, loneliness scale scores predicted college dropout for men from the 1989 group and for men and women from the 1990 group. The potential of loneliness, as a state and a trait, as a predictor of dropping out of college was discussed.