Table: Estimated rate of persons supervised by U.S. adult correctional systems, by correctional status, 2000 and 2005–2015
Total Number of Adults Supervised by the US Correctional System, 2000, 2005, and 2010-2015: In 2015, a total of 6,741,400 adults were under the supervision of the US adult correctional system. Of those, 4,650,900 were under community supervision, of which 3,789,800 were on probation and 870,500 were on parole. A total of 2,173,800 adults were incarcerated in 2015, of whom 728,800 were in jails and 1,526,800 were in prisons.
Number of Adults Under Correctional Supervision in the US: "At yearend 2015, an estimated 6,741,400 persons were under the supervision of U.S. adult correctional systems, about 115,600 fewer persons than yearend 2014 (figure 1). This was the first time since 2002 (6,730,900) that the correctional population fell below 6.8 million. The population declined by 1.7% during 2015, which was the largest decline since 2010 (down 2.1%). Additionally, the decrease was a change from a 3-year trend of stable annual rate declines of about 0.6% between 2012 and 2014. About 1 in 37 adults in the United States was under some form of correctional supervision at the end of 2015. This was the lowest rate observed since 1994, when about 1 in 38 adults (1.6 million fewer persons) were under correctional supervision in the nation (not shown)."