What’s New
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The People’s Safety:
How Cities Can Protect Local Control Over Public Safety by Center for Policing Equity
May 20: Research Library: Policing
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New “Key Statistics” on our website put the most requested numbers about mass incarceration at your fingertips
We’ve made it easier to access the topline statistics about the criminal legal system.
May 18: Prison Policy Initiative Blog
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Updated data and charts: Women’s incarceration, national prison population counts, psychological distress behind bars, and more
Updated data visualizations illustrate the scale of — and disparities within — mass incarceration.
April 27: Briefings
Featured report
Bad Behavior: How prison disciplinary systems manufacture misconduct
Every prison system has extensive lists of misconduct rules and punishments for incarcerated people who break them. In a groundbreaking report, we analyzed these policies in all 50 state prison systems and collected testimonies from dozens of incarcerated people to explore the vast range of behavior that counts as an "infraction." We found that the majority of prison disciplinary cases are for minor misconduct and that these systems play a key role in keeping people in prison longer.
Mass incarceration, state by state
Learn about the national prison crisis and how we can begin to turn the tide on mass incarceration. Then, drill down to your state. Be sure to also check out our pages focused on D.C., and the incarceration of Native people.
If our work is new to you, you might want to check out our 2024-2025 annual report.
Recommended Reading:
50 state incarceration profiles
All of our recent reports about prison/jail growth, racial disparities, and more, re-organized by state.
The rapid & unregulated growth of e-messaging in prisons
It can strengthen connections, but instead has been used to sap money from incarcerated people.
Incarceration and supervision by states
Probation and parole are the leading forms of mass punishment in America.
Prison Gerrymandering Project
We are leading the movement to protect our democracy from the Census Bureau's prison miscount.