Number of prisoners: 868
Location: Yankton, S.D.
This stand-alone federal prison camp is in downtown Yankton, S.D., and was once a college campus. Inmates have the opportunity to leave the prison site and go into the community by volunteering for local nonprofits, such as Habitat for Humanity. The inmate and charity must be approved, and the prisoner is supervised by a representative from the organization.
Those who stay inside the prison camp may play sports, take art lessons, or play any of the instruments in the music room. There is also a library with hundreds of books.