How many Prisons are in the USA?

The USA has 1,566 state prisons, 98 federal prisons, 3,116 local jails, 1,323 juvenile correctional facilities, 181 immigration detention facilities, and 80 Indian country jails. These prisons can hold almost 2 million people!

The United States and Its Incarceration System

The United States is known for having one of the highest incarceration rates in the world, often attributed to the “tough on crime” policies prevalent in the past few decades. As a result, numerous jails and prisons are scattered across the country, holding individuals for various durations and reasons. Jails are primarily short-term facilities, while prisons serve as long-term detention centers for those sentenced for longer periods.

The distinction between jails and prisons is quite significant. On any given day in 2022, jails in the US held around 636,300 individuals. However, this number pales in comparison to the millions admitted to jail every year. Jails typically detain people charged with low-level misdemeanor offenses or those who cannot afford bail while awaiting trial. On the other hand, prisons house those serving sentences longer than a year; in 2021, there were 959,300 people in state prisons and 171,600 in federal prisons.

The incarceration system in the United States is extensive and varied, with several types of facilities in operation. As of 2019, there were 3,163 local jails, 1,190 state confinement facilities, and 102 federal confinement facilities. The capacity and occupancy levels of these institutions fluctuate, with local jails holding 80.9% of their capacity, federal prisons at 130%, and state prisons at 103.4% of their capacity in 2019.

The Role of Prisons in the Criminal Justice System

Prisons play a crucial role in the criminal justice system by providing a place for individuals convicted of crimes to serve their sentences. They are designed to protect the public, punish offenders, and rehabilitate inmates in preparation for their reintegration into society.

  • There are two main types of prisons in the United States: local jails and state or federal prisons. Local jails are short-term facilities that hold individuals awaiting trial or sentencing or those sentenced to less than a year. State and federal prisons, on the other hand, generally house inmates serving sentences of more than a year and hold a larger population of incarcerated individuals.
  • States are responsible for the majority of the prison facilities in the U.S., with approximately 83 percent of the more than 1,600 prisons owned and operated by them. Policy reforms in these institutions must begin at the state level, focusing on using evidence-based strategies such as cognitive-behavioral therapy (CBT) to promote behavior change among inmates and staff.
  • Some states, like California, have rebranded their corrections departments, emphasizing rehabilitation as a key aspect of their role. This shift in focus is essential for promoting successful reintegration of formerly incarcerated individuals into society and reducing recidivism rates.

Different Types of Prisons in the USA

The United States houses a variety of prison facilities, each designed for different purposes and inmate populations. This list provides a brief overview of the different types of prisons found throughout the USA:

  • State Prisons: These facilities confine offenders who have committed state crimes, such as assault, arson, robbery or homicide. Every state has its own unique legislation regarding their prison system, leading to various differences across state lines.
  • Federal Prisons: Inmates here have been charged with federal crimes like drug trafficking, identity theft, tax fraud, or child pornography. There are 122 federal prisons in the U.S., housing more than 151,000 inmates.
  • Federal Prison Camps: Also known as FPCs, these minimum-security prisons house non-violent offenders with relatively clean records. They often resemble college campuses rather than traditional prisons, with dormitory-style housing and little-to-no perimeter fencing.
  • Low-Security Facilities: These prisons still prioritize inmate work programs, but with added perimeter fencing and a higher staff-to-inmate ratio than FPCs.
  • Medium-Security Facilities: These institutions feature strengthened perimeters (such as double fences with electronic detection systems), cell-type housing, a variety of work and treatment programs, and a higher staff-to-inmate ratio compared to low-security facilities.
  • High-Security Institutions: Also known as United States Penitentiaries (USPs), these facilities have highly-secured perimeters, multiple- and single-occupant cell housing, the highest staff-to-inmate ratio, and close control of inmate movement.
  • Administrative Facilities: These institutions have special missions and house various types of inmates, such as pretrial offenders, those with serious medical needs, and highly dangerous or escape-prone individuals.

The Growth of the US Prison System

The growth of the US prison system has been astonishing over recent decades. In 2021, there were a total of 1,766,000 inmates housed in various types of correctional institutions across the country. This includes local jails, state prisons, and federal facilities.

  • One of the main factors behind this increase is the introduction of harsher sentencing policies and laws during the late 20th century. These policies, such as mandatory minimums and three-strikes laws, have led to longer prison sentences and an overburdened criminal justice system.
  • Moreover, racial disparities have persisted, with a disproportionally high number of Black, Hispanic, and Indigenous Americans being incarcerated. This has led to increased scrutiny of racial bias in the criminal justice system and calls for reform.
  • Thankfully, some states have started to address these issues by implementing alternative sentencing programs and other policies aimed at reducing the prison population. For example, some jurisdictions have raised the age for criminal responsibility and invested in community-based programs to support at-risk youth.

While there is still much work to be done, it is essential to recognize the progress that has been made in recent years, and continue striving for a more just and equitable penal system in the United States.

Quantifying the Number of Prisons in the USA

There are more than 6,000 correctional facilities in the United States, including federal prisons, state prisons, and local jails. The Federal Bureau of Prisons (BOP) oversees 122 federal facilities, housing over 150,000 inmates. State prisons, operated by individual states, hold the majority of incarcerated individuals in the country – over 1.2 million people. According to the Prison Policy Initiative, there are approximately 1,833 state prisons in the US.

In addition to federal and state prisons, thousands of local jails are operated by counties and cities, typically holding individuals awaiting trial or serving short sentences. These facilities see a high turnover rate, with an estimated 10.6 million admissions each year. While accurate data on the number of local jails is difficult to obtain, the Bureau of Justice Statistics reports there are roughly 3,134 jails in the US.

Lastly, immigration detention centers, juvenile detention facilities, and specialized correctional institutions contribute to the vast network of incarceration in the United States. Overall, the country has the highest incarceration rate in the world, with over 2.1 million people behind bars.

Challenges and Controversies Surrounding the US Prison System

The United States prison system has faced numerous challenges and controversies, especially concerning overcrowded and inhumane facilities. Millions of Americans are incarcerated in jails and prisons that lack proper treatment, education, and rehabilitation programs. Furthermore, as prison populations surged, lawmakers made it more difficult for incarcerated people to file and win civil rights lawsuits, leaving them at the mercy of corrupt officials.

  • Another serious issue within the US prison system is the failure to protect incarcerated individuals from physical harm and sexual assault. Alarming rates of violence, sexual abuse, and homicides are common in prisons across the country, with Alabama’s prisons holding the notorious title of being the most violent.
  • Prisons have increasingly become a substitute for hospitals for individuals with mental illness. Over half of all incarcerated individuals have a mental illness, but prisons often lack appropriate treatment and resort to using solitary confinement instead, which can exacerbate mental health problems.
  • The practice of solitary confinement has raised substantial concerns, as over 60,000 people in the US are held in isolation. Long-term solitary confinement has been linked to severe mental health issues, such as anxiety, paranoia, and deep depression, and is responsible for almost 50% of all prison suicides.
  • Despite growing bipartisan support for criminal justice reform, the private prison industry continues to block meaningful proposals. In addition, some states, like Alabama, continue to operate far below basic constitutional requirements regarding the treatment and care of incarcerated individuals. It remains crucial for policymakers and the public to understand and address these issues in order to improve the US prison system.


In conclusion, the United States has witnessed a significant increase in incarceration rates over the past four decades, resulting in the highest reported rate of imprisonment in the world. As of yearend 2021, the U.S. prison population was 1,204,300, with the imprisonment rate standing at 350 sentenced prisoners per 100,000 residents. This rate is significantly higher in comparison to Western European democracies, which average around 100 per 100,000 residents, and common law countries such as Australia and Canada.


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