The Office of Juvenile Justice and Delinquency Prevention's biennial Juvenile Residential Facility Census (JRFC) collects information about facilities in which juvenile offenders are held. Respondents provide information about facility characteristics, including facility type, capacity, and type of security. JRFC also reports the number of youth who were injured or died in custody during the past 12 months. This bulletin provides findings from the 2012 survey. The juvenile offender population dropped 14% from 2010 to 2012, to the lowest number since 1975. For the first time since 2000, more offenders were in local facilities on the census day in 2012 than were in state-operated facilities. The 2012 JRFC data also describe security features that facilities use. Overall, 43% of facilities lock youth in their sleeping rooms at least some of the time.