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May 26, 2017

"U.S. Prison Population Trends 1999-2015: Modest Reductions with Significant Variation"

The title of this post is the title of this brief "Fact Sheet" from The Sentencing Project, which gets started this way:

While states and the federal government have modestly reduced their prison populations in recent years, incarceration trends continue to vary significantly across jurisdictions. Overall, the number of people held in state and federal prisons has declined by 4.9% since reaching its peak in 2009.  Sixteen states have achieved double-digit rates of decline and the federal system has downsized at almost twice the national rate.  But while 38 states have reduced their prison populations, in most states this change has been relatively modest.  In addition, 12 states have continued to expand their prison populations even though most have shared in the nationwide crime drop.

Six states have reduced their prison populations by over 20% since reaching their peak levels:

• New Jersey (35% decline since 1999)

• New York (29% decline since 1999)

• Alaska (27% decline since 2006)

• California (26% decline since 2006, though partly offset by increasing jail use)

• Vermont (25% decline since 2009)

• Connecticut (22% decline since 2007)

Southern states including Mississippi, South Carolina, and Louisiana, which have exceptionally high rates of incarceration, have also begun to significantly downsize their prison populations.  These reductions have come about through a mix of changes in policy and practice designed to reduce admissions to prison and lengths of stay.  Moreover, the states with the most substantial prison population reductions have often outpaced the nationwide crime drop.

The pace of decarceration has been very modest in most states, especially given that nationwide violent and property crime rates have fallen by half since 1991.  Despite often sharing in these crime trends, 15 states had less than a 5% prison population decline since their peak year.  Moreover, 12 states have continued to expand their prison populations, with four producing doubledigit increases since 2010: North Dakota, Wyoming, Oklahoma, and Minnesota.

May 26, 2017 at 10:37 AM | Permalink

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