Changes in California's population, increasing numbers of persons arrested for crimes, and changes in law have had significant impacts on local correctional facilities for adult and juvenile offenders. While the number of jail beds in California has more than doubled since 1980, many of those arrested for crimes are never booked into jail and thousands of offenders are released after serving only a fraction of their jail sentence because of a lack of space. The state's juvenile detention facilities have remained virtually unchanged over the past 30 years, even though the types of juvenile offenders have become more violent and the number of offenders has increased. In this report, we summarize the state of California's jails and juvenile facilities.