The Detroit Detention Center and the Detroit Reentry Center are the two state prisons in Wayne County, the most heavily populated county in Michigan. Southeast Michigan is home to a chain of seven counties that each contain state prisons, according to the Michigan Department of Corrections.
The G. Robert Cotton Correctional Facility, the Charles E. Egeler Reception Guidance Center, the Parnall Correctional Facility and the Cooper Street Correctional Facility are all state prisons in the county of Jackson, immediately west of Detroit and Ann Arbor. The central Michigan county of Ionia also has four state correctional facilities, among them the Richard A. Handlon Correctional Facility. The upper peninsula of Michigan contains seven prisons including the Newberry Correctional Facility, as listed by the Michigan Department of Corrections.