There are several major sources for juvenile justice data at the federal- and state-level.

Federally Funded

Office of Juvenile Justice and Delinquency Prevention (OJJDP)

Statistical Briefing Book
This site provides comprehensive national datasets for a wide range of juvenile justice-related topics and subtopics as well as data analysis tools, frequently-asked questions and answers, and links to other statistical resources. Also included are links to data-focused OJJDP publications.

Compendium of National Juvenile Justice Data Sets
This is a resource for researchers in the areas of juvenile offending, victimization, and contact with the juvenile justice system that both publicizes useful data sources and provides information intended to help with the practical aspects of obtaining and analyzing data.

National Criminal Justice Reference Service

Juvenile Justice Section
This site features frequently-asked juvenile justice-related questions and answers as well as publications, related links, and event listings.

National Organizations

Council of Juvenile Corrections Administrators

CJCA Yearbook (For purchase)
The yearbook offers an overview of youth correctional agencies’ leadership, services, funding and youths in care for all 50 states, the District of Columbia and Puerto Rico, and provides information about each system’s responsibilities, budgets, staff, youths, programs, and successful practices reported by juvenile correctional agencies.

National Evaluation and Technical Assistance Center for the Education of Children and Youth Who Are Neglected, Delinquent, or At-Risk (NDTAC)

Fast Facts
NDTAC's Fast Facts web pages provide easy-to-understand national and state-by-state data tables and graphics reflecting student demographics, academic performance, academic and vocational outcomes, and more, for youth involved and at risk of involvement with the juvenile justice system.

National Center for Juvenile Justice

State Juvenile Justice Profiles
These profiles feature rich, descriptive information and analysis regarding each state's juvenile justice system, illustrating the uniqueness of the 51 separate juvenile justice systems in the United States.