Wondering what is costs to house an inmate in solitary confinement? Then you want to read this article. Topics discussed include: costs in California at the Pelican Bay State Prison for the Security Housing Unit (SHU) and Administrative Segregation Unit (ASU); costs at Illinois’ Tamms Correctional Center; cost for Colorado; costs in Ohio, Texas, and Maryland; costs for the Federal Bureau of Prisons; construction costs; and reforms that lead to cost savings.