HELP US END MASS INCARCERATION The Prison Policy Initiative uses research, advocacy, and organizing to dismantle mass incarceration. We’ve been in this movement for 20 years, thanks to individual donors like you.

Can you help us sustain this work?

Thank you,
Peter Wagner, Executive Director

What’s New

Featured report

Does our county really need a bigger jail?
A guide to avoiding unnecessary jail expansion

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Our report gives cities and counties a long-needed tool for fighting mass incarceration: a guide to preventing needless jail expansion. With jail populations having tripled in the last three decades, overcrowding in local jails is common — but there are simpler, cheaper, and more just solutions to jail crowding than building a new or bigger jail. We lay out 33 questions, and a list of best practices, to help local decision-makers understand the true costs of — and alternatives to — jail expansion.

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 2022-2023 annual report.

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