In 2018, the US adult correctional system had under its supervision one in every 40 US adults, which is a rate of 2,510 people under supervision per 100,000 US residents aged 18 or older.

The rate for the population on community supervision, i.e. probation and parole, in 2018 was 1,730 per 100,000 US residents aged 18 or older, and 1,340 per 100,000 US residents of all ages.

The rate for the incarcerated population, in jails and prisons, in 2018 was 830 per 100,000 US residents aged 18 or older, and 650 per 100,000 US residents of all ages.

Table: Estimated rate of persons supervised by US adult correctional systems, by correctional status, 2000 and 2005–2018

Source

Laura M. Maruschak and Todd D. Minton. Correctional Populations in the United States, 2017-2018. Bureau of Justice Statistics: Washington, DC. August 2020. NCJ252157.