Deinstitutionalization: How the Hospitals Emptied
The half-century that took the U.S. state-hospital census from 559,000 to under 40,000 — the drugs, court cases, statutes, and funding rules behind it, and the unfinished community system it left
In 1955 the United States had roughly 559,000 people living in state and county psychiatric hospitals — the peak of institutional psychiatry. Today the figure is under 40,000, even though the population has more than doubled. That collapse, called deinstitutionalization, is the most consequential change in the history of American mental-health care. It was not a single decision but the product of four forces arriving together: a new drug, a new set of ideas, a string of court cases, and a set of federal funding rules. Understanding how they combined — and why the community system meant to replace the hospitals never fully arrived — explains much of the world clinicians practice in today, from psychiatric boarding in emergency departments to the overrepresentation of people with serious mental illness in jails and on the street.
The peak: what the hospitals were
By the mid-1950s the state hospital was the center of gravity of American psychiatry. The system had grown out of the nineteenth-century asylum movement (see Moral Treatment & the Asylum Era), and its founding promise of humane "moral treatment" had long since been overwhelmed by overcrowding. Hospitals held tens of thousands of patients — some acutely ill, many with dementia, intellectual disability, epilepsy, neurosyphilis, or simply nowhere else to go. Wards were understaffed, custodial, and frequently squalid. Exposés like Albert Deutsch's The Shame of the States (1948) documented conditions that shocked the public. The institution was ripe for a reckoning; what it needed was a mechanism.
Force 1 — Chlorpromazine and the pharmacologic hinge
The mechanism arrived in 1954, when chlorpromazine (Thorazine) was introduced in the United States. For the first time, a medication could reliably reduce the agitation, hallucinations, and delusions that made many patients impossible to manage outside a locked ward. Within a few years the antipsychotics spread through the state-hospital system, and for the first time the inpatient census began to fall.
It is easy to overstate the drug's role — the census decline began before the medications were universal, and the later, steeper drops were driven more by policy and money than by pharmacology. But chlorpromazine changed what was imaginable. If symptoms could be controlled with a pill, then community treatment was no longer a fantasy, and the moral and fiscal arguments for emptying the hospitals suddenly had a clinical foundation. The drug was the hinge on which everything else could turn.
Force 2 — Ideas: reform, civil liberties, and antipsychiatry
The intellectual climate shifted at the same time. Sociologist Erving Goffman's Asylums (1961) described the psychiatric hospital as a "total institution" that stripped patients of identity and taught helplessness. The antipsychiatry movement — Thomas Szasz, R.D. Laing, and others — attacked the legitimacy of institutional psychiatry itself, and in 1973 the Rosenhan "pseudopatient" study cast public doubt on whether hospitals could even tell the sane from the insane. A parallel civil-liberties movement reframed involuntary hospitalization as a deprivation of liberty demanding due process, not a benign medical act.
These ideas gave deinstitutionalization its moral energy. The hospital was recast from a place of refuge to a place of harm, and community care from an experiment to a right.
Force 3 — The courts narrow and cost the institution
The civil-liberties argument became law through the landmark cases of the 1960s and 1970s, which cut at the hospital from two directions at once.
They made commitment harder
Lake v. Cameron (1966) required the least-restrictive alternative. Lessard v. Schmidt (1972) demanded full due process. O'Connor v. Donaldson (1975) held that a non-dangerous person capable of surviving in freedom cannot be confined at all. Addington v. Texas (1979) required clear and convincing evidence. Together they shrank the population that could lawfully be admitted or held.
They made confinement expensive
Wyatt v. Stickney (1972) imposed enforceable standards for staffing, environment, and individualized treatment. A constitutionally adequate hospital now cost far more per patient than a warehouse ward. For legislatures, the math increasingly favored discharge.
The courts did not order the hospitals emptied. But by narrowing who could be admitted and raising the cost of keeping anyone, they made the institution smaller and dearer — and gave states both permission and incentive to move people out.
Force 4 — Money: the CMHC Act and the fiscal magnet of Medicaid
The decisive force was fiscal, and it is the least understood. Two federal statutes did most of the work (see Federal Mental Health Statutes).
The Community Mental Health Act of 1963
President Kennedy's law funded the construction of community mental health centers to replace the hospitals with local care. It was the official blueprint for deinstitutionalization. But it funded buildings and start-up staffing, not sustained operations — and the operating appropriations were never fully made. Far fewer centers opened than planned, and those that did often served a healthier population than the one being discharged from the hospitals.
Medicaid, Medicare, and the IMD exclusion (1965)
This is the hidden engine. When Congress created Medicaid, it wrote in the Institutions for Mental Diseases (IMD) exclusion: federal Medicaid dollars generally could not pay for adults aged 21–64 in psychiatric hospitals of more than 16 beds. State hospitals were state-funded; nursing homes and general-hospital care drew federal match. The incentive was overwhelming and immediate — every patient a state could move out of its own fully-funded hospital and into a federally-subsidized nursing home or community setting was a patient the federal government would help pay for.
The result was a massive cost shift dressed as reform. States accelerated discharges not only because of drugs and court orders but because Washington would share the cost of care delivered anywhere except the state hospital. Many older patients were simply transinstitutionalized — moved from psychiatric hospitals to nursing homes, which were not designed for psychiatric care. And SSI (1972) gave discharged patients a modest federal income that made community living at least financially conceivable.
The consequences: what filled the gap
The liberty gains were real: hundreds of thousands of people were freed from custodial institutions, and involuntary confinement became far harder to impose. But the community system meant to catch them was underbuilt from the start. What filled the gap was not a network of clinics but a set of default institutions never designed for the job.
- HomelessnessA substantial share of the chronically homeless population has serious mental illness; the loss of long-term supported housing and the thinness of community care left many with nowhere stable to live.
- IncarcerationThe phenomenon sometimes called "transinstitutionalization to jail": the country's largest de facto psychiatric facilities are now urban jails such as Los Angeles County, Cook County, and Rikers Island. People who once would have been hospitalized are instead arrested, often for behaviors related to untreated illness.
- The revolving doorShort acute admissions, rapid discharge, and readmission — the "revolving door" — replaced long-term care, because acute beds are scarce (partly due to the IMD exclusion) and community follow-up is inconsistent.
- Emergency-department boardingWith too few inpatient beds, psychiatric patients wait hours to days in emergency departments (which are legally obligated under EMTALA to stabilize them) for a bed that may not exist.
- Family caregivingMuch of the burden fell, and still falls, on families acting as unpaid case managers, housing, and crisis responders.
The response: rebuilding a community system, piece by piece
Policy since the 1980s has been a long attempt to build the community half of the equation that 1963 promised and never delivered.
Olmstead v. L.C. (1999) recast unjustified institutionalization as illegal discrimination under the ADA and became the legal lever for expanding community services. Evidence-based models such as Assertive Community Treatment (ACT), supported housing, and supported employment showed that even people with the most serious illness can live in the community with intensive support. Assisted outpatient treatment (AOT) laws — controversial court-ordered outpatient commitment — spread as a tool for the "revolving-door" population. The 21st Century Cures Act (2016) expanded Certified Community Behavioral Health Clinics (CCBHCs) and funded AOT. And the 988 Suicide and Crisis Lifeline (designated 2020, launched 2022) began building a crisis-response continuum — call centers, mobile crisis teams, crisis stabilization units — intended to divert psychiatric emergencies away from police and jails.
Even the IMD exclusion, deinstitutionalization's fiscal engine, has been partially loosened through Medicaid Section 1115 waivers that let states draw federal dollars for some inpatient and residential treatment — a quiet acknowledgment that the pendulum swung too far toward the elimination of acute capacity.
What the history teaches
Deinstitutionalization was not a mistake so much as a half-finished project. The goal — moving people from custodial warehouses into humane community care — was right, and the liberty protections that came with it were genuine advances. The failure was one of sequencing and funding: the hospitals were emptied faster than the community system was built, and the money followed the cost-shifting incentive of the IMD exclusion rather than the clinical need. The lesson for current policy is unglamorous but durable: rights without resources produce homelessness and incarceration, not freedom, and any serious reform must fund the community system before, not after, it reduces the institutional one.
For the drug that made it imaginable, see History of Psychiatric Medications; for the ideas that gave it moral energy, see Antipsychiatry & the Rosenhan Study; for the cases and statutes that drove it, see Landmark Cases and Federal Mental Health Statutes.
References & further reading
Grob GN. From Asylum to Community: Mental Health Policy in Modern America. · Torrey EF. American Psychosis: How the Federal Government Destroyed the Mental Illness Treatment System. · Goffman E. Asylums (1961). · Deutsch A. The Shame of the States (1948). · Treatment Advocacy Center reports on psychiatric bed supply and criminalization. · SAMHSA materials on ACT, CCBHCs, and 988. · National state-hospital census data (NIMH / NASMHPD historical series).