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I co-founded the Prison Policy Initiative to put the problem of mass incarceration — and the perverse incentives that fuel it — on the national agenda. Over the last 16 years, our campaigns have protected our democracy from the prison system and protected the poorest families in this country from the predatory prison telephone industry. Our reports untangle the statistics and recruit new allies.

But now, more than ever, we need your help to put data & compassion into the conversation. Any gift you can make today will be matched by other donors and go twice as far.

Thank you.
—Peter Wagner, Executive DirectorDonate
Image charts the incarcerated populations in federal prisons, state prisons, and local jails from 1925 to 2015. The state prison and jail populations grew exponentially in the 1980s and 1990s, and began to decline slowly after 2008, while federal prison populations show less change over time.

Data Source: Compiled from multiple Bureau of Justice Statistics data sets. See our blog post about the data. (Graph: Wendy Sawyer and Peter Wagner, 2016)

This graph originally appeared in Data update: Incarcerated population inching down.

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