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.
Incarceration in the United States
With around 100 prisoners per 100,000, the United States had an average prison and jail population until 1980. Afterwards it drifted apart considerably. The United States has the highest prison and jail population (2,121,600 in adult facilities in 2016), and the highest incarceration rate in the world (655 per 100,000 population in 2016). According to the World Prison Population List (11th edition) there were around 10.35 million people in penal institutions worldwide in 2015. The US had 2,173,800 prisoners in adult facilities in 2015. That means the US held 21.0% of the world's prisoners in 2015, even though the US represented only around 4.4 percent of the world's population in 2015,