Juvenile delinquency among girls is a unique research, practice and policy challenge that requires a comprehensive understanding of the problem, including scope, causes and risk factors, and opportunities for effective prevention and intervention. Various child-serving systems, including education, child welfare and mental health services are connected to the juvenile justice system and the young people in its care. The following information and data have been compiled to develop a common source of reference for the experiences and needs of girls in Ohio who have either entered or are at-risk of entering the juvenile justice system. Data collection, maintenance and reporting are not consistent across the state or across child-serving agencies, and ease of data accessibility varies considerably as well. Thus, while significant gaps in data exist, this summary serves as a starting point for background on vulnerable girls.