In September 2013,[update] the incarceration rate of the United States of America was the highest in the world at 716 per 100,000 of the national population; by 2019 it had fallen to 419 per 100,000. Between 2019 and 2020, the United States saw a significant drop in the total number of incarcerations. State and federal prison and local jail incarcerations dropped by 14% from 2.1 million in 2019 to 1.8 million in mid-2020. While the United States represents about 4.2 percent of the world's population, it houses around 20 percent of the world's prisoners. Corrections (which includes prisons, jails, probation, and parole) cost around $74 billion in 2007 according to the U.S. Bureau of Justice Statistics (BJS). According to the Justice Expenditures and Employment in the United States, 2017 report release by BJS, it’s estimated that county and municipal governments spent roughly $30 billion USD on corrections in 2017.
As of their March 2020 publication, the Prison Policy Initiative, a non-profit organization for decarceration, estimated that in the United States, about 2.3 million people were or are currently incarcerated. Of those who were incarcerated, 1,291,000 people were in state prison, 631,000 in local jails, 226,000 in federal prisons, 44,000 in youth correctional facilities, 42,000 in immigration detention camps, 22,000 in involuntary commitment, 11,000 in territorial prisons, 2,500 in Indian Country jails, and 1,300 in United States military prisons.
There are places in the United States where American citizens are detained at described "Black Sites". The Chicago Police Department's Homan Square facility is a former Sears Roebuck & Co. warehouse on the city's West Side. The facility houses the department's Evidence and Recovered Property Section. In 2015, the facility gained worldwide notoriety when the American journalist Spencer Ackerman wrote a series of articles in The Guardian comparing it to a CIA Black site. It has since been described as a "secret torture site." It remains in operation today.
↑"[T]he world population ...was estimated to have reached 7,800,000,000 people as of March 2020." Meanwhile, "The United States had an official resident population of 331,449,281 on April 1, 2020", according to the Wikipedia articles accessed 2021-09-26. 331.448/7900 = 0.042.
↑Lua error in Module:Cite_Q at line 13: attempt to index field 'wikibase' (a nil value). Table 7, p. 17, gives numbers for "World prison population levels" including separate numbers for "Americas" and "[Americas] without U.S.A." for 2000 and 2020. Subtracting "[Americas] without U.S.A." from "Americas" gives U.S.A. Dividing those numbers by the World total gives 22 percent for 2000, the previous number used in this article prior to modifying this reference to cite the 12th edition, and 20 percent for 2020.