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 22 years, thanks to individual donors like you.

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Chart showing the portion of New York State's and Oklahoma's state prison population that is incarcerated for a drug offense from 1992 to 2015. The portion of New York State's prison population that is incarcerated for drug offenses has been consistently falling, while Oklahoma's rose to a peak in 2006 and has been consistently above 25% since 1999.

Data Source: Compiled by the Prison Policy Initiative from state prison records for the years 1992-2014. (Graph: Peter Wagner & Bernadette Rabuy, 2017)

This graph originally appeared in Mass Incarceration: The Whole Pie 2017.

Chart showing the portion of New York State's and Oklahoma's state prison population that is incarcerated for a drug offense from 1992 to 2015. The portion of New York State's prison population that is incarcerated for drug offenses has been consistently falling, while Oklahoma's rose to a peak in 2006 and has been consistently above 25% since 1999.

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