The need for mental health care has been steadily increasing for youth coming into contact with the juvenile probation system. This paper presents the results of a statewide survey of juvenile probation departments and associated mental health, health care, court, and education personnel in California. The intent of the survey was to better understand the costs and associated contexts of caring for youth with suspected mental disorders in juvenile detention facilities. The burden of caring for these youth on detention facilities and their staffs is substantial. Implications for courts, policy planning, training, and further research are discussed.