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 23 years, thanks to individual donors like you.

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Thank you,
Peter Wagner, Executive Director Donate
graph: prisoners per 100,000 population 1925-2001; emphasizing the low rate of incarceration during censuses prior to the 1990

Data Source: The Prison Index. (Graph: Peter Wagner, 2003)

This graph originally appeared in Prior to 1990 Census, prisoners were not explicitly excluded from Census counts.



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