Here they quote U.S. Bureau of Justice Statistics from 2020 with around 1.7M of prisoners. That's about 15% lower than that number, but still quite high. https

Here they quote U.S. Bureau of Justice Statistics from 2020 with around 1.7M of prisoners. That's about 15% lower than that number, but still quite high. https://www.prisonstudies.org/country/united-states-america https://www.prisonstudies.org/country/united-states-america