List of countries by incarceration rate
China. The rate of 118 is for sentenced prisoners in 2015 in Ministry of Justice prisons only. World Prison Brief: "1,649,804 [prisoners] at mid-2015 (via Asian and Pacific Conference of Correctional Administrators - sentenced prisoners in Ministry of Justice prisons only, excluding pre-trial detainees and those held in administrative detention). The Deputy Procurator-General of the Supreme People's Procuratorate reported in 2009 that, in addition to the sentenced prisoners, more than 650,000 were held in detention centres In China. If this was still correct in mid-2015 the total prison population in China was at least 2,300,000. ... 118 [rate] based on an estimated national population of 1.4 billion at mid-2015 (from United Nations figures) – sentenced prisoners in Ministry of Justice prisons only. (A total prison population of 2,300,000 would raise the prison population rate to 164 per 100,000.)" See also: Re-education through labor and Laogai.
Re-education through labor
"China Daily" estimated that there were a total of 310 re-education centers in China in 2007. The 2008 edition the Laogai Research Foundation's biennial report listed exactly 319 "confirmed" re-education centers in China, and 74 "unconfirmed" ones, but estimated that the actual number might be much higher. the provinces with the most centers being Guangdong (31), Heilongjiang (21), and Henan (21). In a February 2009 meeting of the United Nations Human Rights Council, the Chinese government stated that there are 320 centers. The provinces with the most re-education centers include Guangdong, Liaoning, Heilongjiang, and Henan. At the end of 2008, there were 350 labor camps in which were held 160,000 prisoners.