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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Peter Wagner, Executive Director
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map of Maryland state showing incarceration rate by census tract and highlighting 3 counties and Baltimore City with highest rates

Data Source: Maryland state redistricting data and U.S. Census Bureau P.L. 94-171 redistricting data processed by Peter Horton at Redistricting Data Hub. See report for full methodology and underlying data tables. (Map: Emily Widra, 2022)

This map originally appeared in Where people in prison come from: The geography of mass incarceration in Maryland.

The underlying data can be found in the report’s appendix tables.

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