Data were obtained through questionnaires mailed to facilities throughout the United States that housed more than three residents, 50 percent of whom were juveniles, and which had at least 1 percent of their average daily population composed of offenders. Juvenile detention centers operating as part of an adult jail were excluded, as were nonresidential facilities, facilities exclusively for drug/alcohol abusers or nonoffenders, and Federal juvenile correctional facilities. Data pertaining to facilities present the number of juveniles and facilities by facility type and facility environment, 1983; design capacity and occupancy, 1982; resident to staff ratios by employment status and staff function, 1979 and 1983; expenditures, 1982; and average per day and per placement operating costs, 1982. Data on juvenile residents include average daily population, population movement, and 1-day counts, 1979 and 1983; demographic characteristics and adjudication status, 1979 and 1983; average daily population and confinement rate by State, 1982; number of juveniles by reason held, 1983; and average lengths of stay by facility type. Narrative summary and 12 tables.