Cook County Jail is located in Chicago, Illinois, and is one of the largest single-site jails in the United States. It serves as a detention center for individuals awaiting trial or sentencing, as well as those serving short sentences. The facility is operated by the Cook County Sheriff's Office and has a capacity of over 10,000 inmates. The jail is known for its diverse population, housing individuals from various backgrounds and communities. It also offers programs aimed at rehabilitation, including educational and vocational training, to help inmates reintegrate into society upon release.