The average living space in solitary confinement is 70 square feet, only slightly larger than a king-size mattress. [7]
Costs of isolating people in solitary confinement is 2-3 times more expensive than holding them in general population. [8]
Almost 15% of people held in solitary confinement are in isolation for between one and three years consecutively [9]
Figures Exceed Previous Counts Because They Include All People in Solitary in Prisons and Jails for 22 or More Hours a Day, and Are Based on the Most Reliable Available Sources
