A modern and healthy society can be created only by bringing up the individuals of the society in a healthy way and according to the needs of the modern era. Thus, it is important to grow healthy children and young people. The first duty, which belongs to the family, is to make the children and the young people, who are the hope of the society and guaranty of the future, responsible individuals and to educate them. If the family fails to do so, it is the state that must take over the duty. In Turkey, the state supplies these kinds of children and young people with education and care with the help of the Institute for Social Services and Children Care, serving under the Office of Prime Ministry. The institution serves the children in need of care and education by grouping them according to age (children 12 years old or younger in children's homes and children 13-18 years old in orphanages). The purpose of this research was to investigate whether loneliness levels of adolescent students living in an orphanage differ from those of adolescent students living with their own families. According to the research findings, the loneliness levels of the students living in an orphanage were significantly higher (p less than 0.001) than those of the students living with their own families. Suggestions from the findings of the research are presented. (Contains 1 table.)