Our best data visualizations in 2014

Our six favorite data visualizations from Prison Policy Initiative reports in 2014.

by Peter Wagner, December 29, 2014

2014 was a big year for ground-breaking data visualizations from the Prison Policy Initiative. These are our six favorites:

pie chart showing the number of people locked up on a given day in the United States by facility type and, where available, the underlying offenseFrom: Mass Incarceration: The Whole Pie.


graph showing the incarceration rate per 100,000 in 2010 of founding members of NATO

Josh Begley made this graph as part of our collaboration for States of Incarceration: The Global Context.


Josh Begley made this interactive graphic of “World Incarceration Rates If Every U.S. State Were A Country” as part of our collaboration for States of Incarceration: The Global Context.


Graph showing the number of people per 100,000 population in federal prisons, state prisons and local jails from 1925 to 2012, with the highest rates for state prisons followed by local jails.
From Tracking State Prison Growth in 50 States. (Also see larger or as raw numbers.)


graph showing Incarceration rates in United States
From: Breaking Down Mass Incarceration in the 2010 Census: State-by-State Incarceration Rates by Race/Ethnicity. This data, plus much more, is also available in 50 state profiles.


From Reaching too far: How Connecticut’s large sentencing enhancement zones miss the mark comes this map, showing that overlapping sentencing enhancement superzones blanket Bridgeport Connecticut, covering 92% of the city’s residents while more rural Bridgewater contains just one zone, covering 8% of the town’s residents.


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