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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Thank you,
Peter Wagner, Executive Director
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Line graph showing the incarceration rate per 100,000 people in Massachusetts' prisons and jails, from 1978 to 2022.

(Graph: Emily Widra, April 2024)

This graph is a part of New data and visualizations spotlight states' reliance on excessive jailing, published in April 2024. For more research and graphs about Massachusetts, see our Massachusetts state profile.



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