9.3 Modern Jails and Prisons
Although people often use the term jails and prisons interchangeably, they actually serve different purposes. Jails have two primary functions. First, they act as short-term holding facilities for individuals who have recently been arrested or are awaiting trial. Second, jails are used to incarcerate individuals who have been sentenced for misdemeanors and less serious crimes for periods typically lasting less than a year. In contrast, prisons are utilized to punish offenders who have committed more serious crimes, usually with sentences exceeding one year.

Jails
Most jail jurisdictions operate at the county level and are overseen by the elected sheriff. However, some jails are under the authority of police chiefs, county or city administrators, the state, or private entities. While jails primarily provide housing for inmates convicted of minor crimes, they also serve as holding facilities for persons awaiting trial, conviction, or sentencing. Additionally, jails accommodate individuals on probation or parole, absconders, and bail violators. In certain cases, jails may also detain juveniles or individuals with mental illnesses until they can be transferred to the appropriate facility. Furthermore, jails play a role in housing persons for the U.S. Marshals Service and Immigration and Customs Enforcement (ICE) agencies.
In some instances, counties, especially those with small populations, may opt for regional jails. Regional jails are often employed as cost-saving measures. For example, two neighboring counties with low populations may decide to combine financial resources to create a one larger more efficient jail capable of offering more programs than two smaller separate jails. However, problems emerge with regional jails when ideological conflicts between the two counties arise on how the jail should operate and how resources should be utilized.
Jail Inmate Demographics
At the end of 2021, local jails held 636,300 individuals (Zeng, 2022). Of these, 29% were either convicted and serving their sentence or awaiting sentencing from the court, while the remaining 71% had not been convicted and were awaiting trial or held for other reasons, such as civil infractions. Zeng (2023) estimated that in 2022, 76% of all jailed inmates were held for felony offenses compared to 69% during 2017. However, the average daily population of jail inmates incarcerated for felonies in 2017 was similar to that in 2022, suggesting that the percentage change was due to a reduction in individuals jailed for misdemeanor charges. Policy changes, such as the legalization or decriminalization of marijuana, the elimination of bail, shifting social perspectives on mental illness, and even the impact of a major current event, such as the COVID-19 pandemic, could be factors contributing to the decrease in the jailing of misdemeanor offenders.
As demonstrated on Figure 9.12 below, the racial and ethnic composition of jailed individuals in 2022 was 48% White, 35% Black, 14% Hispanic, 1% Asian, and 1% Native American or Alaska Native (Zeng, 2023). These proportions have remained relatively consistent over the previous decade. When compared to the overall demographic distribution of the total U.S. population, it is evident that Black Americans are disproportionately represented in the U.S. jail system. For example, Black U.S. residents are jailed at a rate 3.4 times higher than that of White U.S. residents.

In 2022, 62%, of the jailed population fell within the age range of 25 and 44 years old. Moreover, men constituted the 86% of the jail population, while women made up only 14% (Zeng, 2023). Although there continues to be a significant discrepancy between the percentage of men and women incarcerated in jails, this disparity has gradually narrowed over the past four decades.
Issues with Jail Management
Insufficient resources often pose challenges for jail management. Many jail facilities encounter constraints, such as limited space, that substantially hampers staff’s ability to implement more comprehensive risk-assessment classification structures similar to those commonly utilized by prisons. These limitations can lead to potential issues, particularly when segregating special populations or effectively managing rival gangs. Moreover, jails typically lack rehabilitation and reintegration programs compared to prisons. This deficiency stems from resource constraints and the short duration of inmate stays, which averaged 33 days in 2021 (Zeng, 2022).
Mental Illness among Jail Inmates
One of the most prominent issues affecting jails in the late 20th and early 21st centuries has been the large number of inmates dealing with mental illness. While the incarceration of mentally ill individuals has always been a concern in both jails and prisons, it was not until the onset of deinstitutionalization of mental hospitals in the 1950s that jails began to encounter serious difficulties with an influx of persons with mental illnesses (Torrey et al., 2010). Major medical advancements in antipsychotic drugs in the 1960s and 70s provided individuals with the alternative opportunity to remain in society rather than being institutionalized in mental hospitals, thereby reducing the need for occupancy. States quickly recognized the cost-effectiveness of reducing the number of mental hospital beds. This led to a significant shift in the management and availability of mental health care. Politicians such as Ronald Reagan and Goodwin Knight advocated for the closure of mental hospitals around the 1960s and 1970s, which accelerated deinstitutionalization. This policy gained momentum in the 1980s (Torrey et al., 2010). By 1994, only 12% of the estimated 560,000 state-operated mental hospital beds in 1955 remained open.
In the 1980s and 1990s, it became evident that while deinstitutionalization was initially well-intentioned, it was poorly planned and executed. The lack of available resources and beds in mental hospitals left few alternatives, forcing communities to rely on jails and prisons to manage individuals with mental illnesses. Thus began the transition of viewing mental illness as a public health concern to that of a criminal issue. Current reports indicate that 26%—or 1 in 4—jailed inmates meet the threshold for serious psychological distress (Bronson & Berzofsky, 2017), a rate 420% higher than the general population. Additionally, only 36% of jailed inmates showed no signs of mental health problems. At present, jails and prisons detain more mentally ill individuals than both private and public mental hospitals combined. While all states incarcerate a greater number of seriously mentally ill individuals compared to those housed in mental hospitals, states like Texas and Nevada incarcerate eight to 10 times the number of seriously mentally ill people compared to those housed in mental hospitals (Torrey et al., 2010). Unfortunately, despite the obvious need among their inmate population, as of 2019, only 26% of all U.S. local jails provided any mental health or psychiatric services (Zeng & Minton, 2021).
Drug and Alcohol Abuse among Jail Inmates
Drugs have presented a significant challenge in the criminal justice system for centuries. According to the 2007–2009 National Inmate Survey, 60% of female inmates and 54% of male inmates reported drug use in the month preceding their current offense (Bronson et al., 2017). Based on the DSM-IV criteria psychologists use, it was found that 72% of female sentenced jail inmates and 62% of male sentenced jail inmates met the criteria of drug dependence or abuse, a rate 15 times higher than that of the general public not under correctional supervision. Problematically, only 17% of local U.S. jails offered drug treatment services, with 16% of these services specific to alcohol treatment, thus overlooking the need for other drug treatment and rehabilitation services (Zeng & Minton, 2021).
Preexisting drug dependency and addiction issues among inmates persist upon incarceration and lead to a demand for illegal drugs within jail facilities. Due to the heightened difficulty of accessing drugs in jail, they are often sold at grossly inflated prices. This increased value incentivizes inmates to resort to various methods to smuggle drugs into the facility. Creative approaches include enlisting outsiders to use drones to drop drugs or soak letters in substances like LSD or fentanyl. The presence of drugs in jail environments can worsen inmate behavior issues, compromise facility security, and elevate the risk of violence, homicide, and overdoses among inmates.
Jail Inmate Mortality Rates
Effective management of inmate mortality within jails presents a major challenge for both jail staff and administration. In 2019, a total of 1,200 inmate deaths occurred in local jails (Carson, 2021). Among these fatalities, suicide was the leading cause, responsible for 30% of deaths; this tragic statistic emphasizes the critical need for mental health support and suicide prevention measures within correctional facilities. Heart disease, comprising 25%, and other illnesses, constituting 26%, collectively accounted for over half of all inmate deaths; these concerning findings highlight the importance of providing adequate health-care services and addressing underlying health conditions among incarcerated individuals. Additionally, drug and alcohol intoxications accounted for 15% of inmate mortality; this alarming data signals the necessity for substance abuse treatment and prevention programs within jails. Accidents and homicide each contributed 2% to the total deaths, underlining the ongoing importance of safety protocols and security measures in jail environments. This breakdown of inmate mortality statistics underscores the multifaceted obstacles faced by jail facilities in ensuring the well-being and safety of incarcerated individuals.
Improving Jail Management
It is crucial for jail staff and administrators to prioritize the safety and well-being of inmates, in addition to safeguarding society and themselves. Identifying inmates with drug abuse issues, mental illness, gang affiliation, or suicidal tendencies is essential for maintaining jail safety. Typically, these issues are discovered during the initial screening process, which involves fingerprinting, photographing, inventorying the individual’s personal belongings, and pat downs or body searches. Officers are also responsible for conducting medical screenings that include questionnaires about the inmate’s physical and mental health. This initial assessment assists officers in determining the inmates’ basic risks and needs. If an inmate is experiencing mental health issues, they are referred to the jail’s mental health professional for an evaluation. In instances where a new inmate is dependent on drugs or alcohol, staff must devise a strategy to support them through the detoxification process because individuals addicted to substances such as alcohol or heroin face a risk of death during detoxification while incarcerated. To mitigate this risk, the jail may administer medication to help the individual safely taper off these addictive substances.

Attributions
- Figure 9.11: The Old Licking County Jail and Sheriff’s Residence in Newark, Ohio by Carol M. Highsmith, photographer in the public domain; LOC states: “No known restrictions on publication.”
- Figure 9.12: Demographics of Jail Inmates in 2022 by Wesley B. Maier and Kadence C. Maier, for WA Open ProfTech, © SBCTC, CC BY 4.0
- Figure 9.13: Main building, Wisconsin State Prison, Waupun by H. Montgomery in the public domain; This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Please look for related terms in the Glossary
A secured facility designed to house individuals who have been convicted of crimes and sentenced to incarceration (usually for more than a year ). Prisons are typically operated by governmental authorities and are intended to serve as places of punishment, deterrence, rehabilitation, and public safety. Inmates are typically confined to their cells for a significant portion of the day and may participate in various programs and activities aimed at promoting personal growth and eventual reintegration into society.
A federal law enforcement agency within the United States Department of Justice responsible for the protection of federal judicial officers and courts, the apprehension of fugitives, the management of and transportation of federal prisoners, and other law enforcement activities.
A federal agency within the Department of Homeland Security responsible for enforcing immigration laws and overseeing border control, customs, and immigration detention facilities. ICE's duties include investigating immigration violations, detaining and deporting unauthorized immigrants, combating human trafficking and smuggling, and enforcing customs laws to prevent the illegal entry of goods into the US.
Correctional facilities that serve a specific geographic region and typically house inmates from multiple jurisdictions within that area. These jails are often operated by local or regional governments and may provide various levels of security, ranging from minimum to maximum. They serve as an alternative to county jails and are designed to accommodate the needs of smaller communities by consolidating resources and sharing costs associated with housing and managing inmates.
The process of reducing the authorized enforcement or legal penalties associated with certain behaviors that were previously considered criminal offenses, often resulting in the ignoring of these once criminal behaviors or the treatment of these behaviors as regulatory or civil infractions rather than criminal acts.
The process of discharging individuals with mental illness or developmental disabilities from long-term residential institutions, such as psychiatric hospitals or developmental centers, and transitioning them into community-based care settings. This approach aims to provide individuals with greater autonomy and opportunities for integration into society while reducing reliance on institutionalization as the primary form of treatment and support.