This report offers some much needed clarity by piecing together this country’s disparate systems of confinement. The American criminal justice system holds almost 2.3 million people in 1,833 state prisons, 110 federal prisons, 1,772 juvenile correctional facilities, 3,134 local jails, 218 immigration detention facilities, and 80 Indian Country jails as well as in military prisons, civil commitment centers, state psychiatric hospitals, and prisons in the U.S. territories.

This report provides a detailed look at where and why people are locked up in the U.S., and dispels some modern myths to focus attention on the real drivers of mass incarceration, including exceedingly punitive responses to even the most minor offenses.