The United States remains the country with both the highest prison population in the world, with 2.3 million prisoners, and the incarceration of the world's highest rate capita, with 752 prisoners per 100 000 inhabitants (Campers, 2012). By comparison, China, with a population of over a billion people is second with 1.5 million prisoners, followed by Russia with 890,000 inmates, says the document. More than one in 100 adults is currently behind bars in the United States, which has the largest prison population in the world, with ...