Incarcerated population in the United States
Incarcerated population in the United States (1980-2016)

(Incarcerated population denotes the estimated number of persons under the jurisdiction of state or federal prisons, and in the custody of local jails.)
Adult incarceration rate in 2016 was 860 per 100,000. It was at 920 in 2000 and has kept reducing over years to reach 910 in 2010 and 870 in 2015. Current incarceration rate is at its lowest since 1996.
The following table shows the size of incarcerated population in U.S., including local jails as well as federal and state prisons between 1980-2016.
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Sources:
Bureau of Justice Statistics.