Both nationally and in the District of Columbia, boys have made up a vast majority of the juvenile justice population. Consequently, research, best practices, system reform efforts, and policies have been primarily based on the male population. In the past two decades, overall rates of youth involvement in the juvenile justice system have declined, yet the share of girls arrested, petitioned to court, placed on probation, and placed out of home has steadily increased. Due in part to a historical inattention to the unique drivers for girls into the juvenile justice system and the specific needs of justice-involved girls, jurisdictions around the country are seeing an increase in the rates of girls’ involvement in the juvenile justice system.