The London Correctional Institution (LoCI) is located in Union Township, Madison County, just west of London, Ohio, 27 miles (43 km) southwest of Columbus. It was originally known as the London Prison Farm. From 1913 to 1925 it was a branch of the Ohio Penitentiary in Columbus. In 1925, it became a separate facility. The prison currently accommodates approximately: 2,500 adult males in three security levels: minimum, medium and close-security.