In 1955 more than half a million Americans lived in state psychiatric hospitals; over the next half-century that population fell by more than ninety percent. New drugs, reform impulses and revulsion at abuse drove it, but the planned community care system was only about half built. The gap became a partial driver of visible homelessness.
Accounts differ on how much deinstitutionalization explains modern homelessness, versus housing affordability driving the overall count. Whether the failure was the emptying itself or the missing replacement, and whether reinstitutionalization is the answer, are also disputed.



