The total adult population in correctional institutions ranged from a low of 6,860 in July 1990 to a high of 7,624 in March 1991. These figures were substantially over actual prison capacity. The number of adult offenders on work release varied from 721 in July to 797 in March. Detailed data are provided on the racial and Hispanic origin distribution of inmates, offenses, violent crime convictions, age distribution and average age, and sentencing authority. Prison admissions are tabulated according to month and type of admission, county of conviction, age, race, sex, sentencing authority, and offense. Prison release data are categorized by type of release, month, race, length of stay by admission category and by offense, sentencing authority, and sex. A glossary of terms and abbreviations is included. Tables