In order to assess the need for drug-related services for at-risk youth, a survey was conducted among young people aged 12-17 years who, owing to severe family discord, were currently living away from home (homeless) or had experienced periods away from home in the past 12 months (potentially homeless). Prevalence of use and of potentially harmful levels of use of alcohol and other licit and illicit drugs were higher than in a comparative population. Of the 155 people interviewed, 54% reported past physical abuse, 28% reported past sexual abuse, and 73% had a family alcohol or other drug history. Of the total, 62% had been in a youth refuge at some time in the past 12 months. Twenty four per cent had been to hospital as a result of alcohol or other drug use and 45% had attempted suicide. Female sex and an interaction between sexual abuse and binge drinking predicted suicide attempts. This study points to the need for a comprehensive approach to interventions for troubled youth which gives greater recognition to mental health issues related to family circumstances, including abuse.