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Women’s Mass Incarceration:
The Whole Pie 2017  

By Aleks Kajstura
October 19, 2017

With growing public attention to the problem of mass incarceration, people want to know about women’s experience with incarceration. How many women are held in prisons, jails, and other correctional facilities in the United States? And why are they there? While these are important questions, finding those answers requires not only disentangling the country’s decentralized and overlapping criminal justice systems,1 but also unearthing the frustratingly hard to find and often altogether missing data on gender.

This report provides a first-of-its-kind detailed view of the 219,000 women incarcerated in the United States, and how they fit into the even larger picture of correctional control. Since 2014, the Prison Policy Initiative has quantified the number of people incarcerated in the United States, and calculated the breakdown of people held by each correctional system by offense in an annual Whole Pie: Mass Incarceration report. This report, done in collaboration with the ACLU’s Campaign for Smart Justice, finally provides similar data on women incarcerated in the Unites States. We break the data down to show the various correctional systems that control women, and to examine why women in the various systems of confinement are locked up:

pie chart showing the number of women locked up on a given day in the United States by facility type and the underlying offense using the newest data available in 2017

In stark contrast to the total incarcerated population, where the state prison systems hold twice as many people as are held in jails, incarcerated women are nearly evenly split between state prisons and local jails.

The explanation for exactly what happened, when, and why does not yet exist because the data on women has long been obscured by the larger picture of men’s incarceration. The disaggregated numbers presented here are an important first step to ensuring that women are not left behind in the effort to end mass incarceration.2

Women are disproportionately stuck in jails

A staggering number of women who are incarcerated are not even convicted: more than a quarter of women who are behind bars have not yet had a trial. Moreover, 60% of women in jail have not been convicted of a crime and are awaiting trial.

Avoiding pre-trial incarceration is uniquely challenging for women. The number of unconvicted women stuck in jail is surely not because courts are considering women, who are generally the primary caregivers of children, to be a flight risk. The far more likely answer is that incarcerated women, who have lower incomes than incarcerated men, have an even harder time affording cash bail. A previous study found that women who could not make bail had an annual median income of just $11,071.3 And among those women, Black women had a median annual income of only $9,083 (just 20% that of a white non-incarcerated man). When the typical $10,000 bail amounts to a full year’s income, it’s no wonder that women are stuck in jail awaiting trial.

Even once convicted, the system funnels women into jails: About a quarter of convicted incarcerated women are held in jails, compared to about 10% of all people incarcerated with a conviction.

So what does it mean that large numbers of women are held in jail - for them, and for their families? While stays in jail are generally shorter than in stays in prison,4 jails make it harder to stay in touch with family than prisons do. Phone calls are more expensive, up to $1.50 per minute, and other forms of communication are more restricted - some jails don’t even allow real letters, limiting mail to postcards. This is especially troubling given that 80% of women in jails are mothers, and most of them are primary caretakers of their children. Thus children are particularly susceptible to the domino effect of burdens placed on incarcerated women.

Women in jails are also more likely to suffer from mental health problems and experience serious psychological distress than either women in prisons or men in either correctional setting.5

Ending mass incarceration requires looking at all offenses

The numbers revealed by this report enable a national conversation about the policies that impact incarcerated women held in various facilities, and also serve as the foundation for discussions to change the policies that lead to incarcerating women in the first place.

All too often, the conversation about criminal justice reform starts and stops with the question of non-violent drug and property offenses. While drug and property offenses make up more than half of the offenses for which women are incarcerated, the chart reveals that all offenses, including violent offenses that account for roughly a quarter of all incarcerated women, must be considered in the effort to reduce the number of incarcerated women in this country. This new data on women underlines the need for reform discussions to focus not just on the easier choices but on choices that can lead to impactful policy changes.

The tentacles of mass incarceration have a long reach

Even the “Whole Pie” of incarceration above represents just one small portion (16%) of the women under correctional supervision. Again, this is in stark contrast to the general incarcerated population (mostly men), where a full third of those under correctional control are in prisons and jails.

pie chart showing that women in correctional facilities make up only 16% of the women under correctional control in the United States. Most (75%) are on probation. The remainder are on paroleThree out of four women under control of the correctional systems are on probation. Probation is often billed as an alternative to incarceration, but instead it is frequently set with unrealistic conditions that undermine its goal of keeping people from being locked up.6 For example, probation often comes with steep fees, which, like bail, women are in the worst position to afford.7 Failing to pay these probation fees is often a violation of probation. Childcare duties further complicate probation requirements that might require meetings with probation officers, with no extra money to spend on babysitters or reliable fast transportation across town. All of these issues make women particularly vulnerable to being incarcerated not because they commit crimes, but because they ran afoul of one of the burdensome obligations of their probation supervision.

The picture of women’s incarceration is far from complete, and many questions remain about mass incarceration’s unique impact on women. Based on our analysis in this report we know that a quarter of incarcerated women are unconvicted. But is that number growing? And how does that undue incarceration load intersect with women’s disproportionate caregiving burdens to impact families? Beyond these big picture questions there are a plethora of detailed data points that are not reported for women by any government agencies, such as the simple number of women incarcerated in U.S. Territories.

While more data is needed, the data in this report lends focus and perspective to the policy changes needed to end mass incarceration without leaving women behind.


Read about the data

This briefing uses the most recent data available on the number of people in various types of facilities and the most significant charge or conviction. Because not all types of data are collected each year, we sometimes had to combine differing data sets; for example, we applied the percentage distribution of offense types from the previous year to the current year’s total count data. To smooth out these differing levels of vintage and precision among the sources, we choose to round all figures in the graphic. This process may, however, result in various parts not adding up precisely to the total.

  • Jails: Calculated based on the Bureau of Justice Statistics, Jail Inmates in 2015, Table 3 (average of yearend 2014 and midyear 2015). The Bureau of Justice Statistics has stopped collecting data on the conviction status of women in jails in 2009, so we calculated the breakdown based on 2009 data published in the Jail Inmates at Midyear 2013 - Statistical Tables. Our analysis of offense types is based on the Survey Of Inmates In Local Jails, 2002. See below and Who is in jail? Deep dive for why we used our own analysis rather than the otherwise excellent Bureau of Justice Statistics analysis of the same dataset, Profiles of Jail Inmates, 2002. While this methodology section illustrates the pervasive dearth of women’s criminal justice data, this 2002 data continues to be the most recent data available of its kind without regard to gender breakdown, until the Bureau of Justice Statistics begins administering the next Survey of Inmates in Local Jails in 2018.
  • Immigration detention: Calculated based on the United States Government Accountability Office Report to Congressional Requesters, Immigration Detention: Additional Actions Could Strengthen DHS Efforts to Address Sexual Abuse, which reports that women made up 9% of the 2012 fiscal year detainee population, and the total number of detainees (41,000) comes from page 7 of Report of the Subcommittee on Privatized Immigration Detention Facilities, December 1, 2016, by the Homeland Security Advisory Council. In November 2016, the Department of Homeland Security announced that it was seeking additional (but unspecified) incarceration capacity, so this 41,000 number has likely already grown. The impact of the current administration’s increased ICE activities on the total population, let alone women, is not yet known.
  • Federal: Bureau of Justice Statistics, Prisoners in 2015, Table 10, reports percentage breakdown of offense types for the convicted population as of September 30, 2015, and the total population of women reported in Table 2, for December 31, 2015. We did not attempt to separate out convicted and unconvicted from the federal slice of the pie and instead proportionally applied the offenses for the convicted population to the unconvicted population.
  • State Prisons: Prisoners in 2015, Table 2 provides the gender breakdown for the total population as of December 31st, 2015, and Table 9 provides data (as of December 31, 2014) that we used to calculate the ratio of different offense types.
  • Military: The latest gender breakdown we could find was in Correctional Populations in the United States, 1998, Table 8.5, which reported the number of prisoners under military jurisdiction, by officer and enlisted status, gender, race, and Hispanic origin, for December 31, 1998. We calculated the number of women for our military slice by imputing the percentages from 1998 to the numbers reported in Prisoners in 2015, Appendix Table 7, which gives the number of people incarcerated in by each branch of the military, but does not provide a gender breakdown.
  • Territorial Prisons (correctional facilities in the U.S. Territories of American Samoa, Guam, and the U.S. Virgin Islands, and U.S. Commonwealths of Northern Mariana Islands and Puerto Rico): Calculated based on World Prison Brief data reporting the most recent data available, ranging from 2007 (Northern Mariana Islands) to 2015 (Puerto Rico).
  • Youth: Office of Juvenile Justice and Delinquency Prevention, Easy Access to the Census of Juveniles in Residential Placement, reporting data for 2015. To keep things comparable with the other parts of the pie, we choose to include only those youth in detention centers, long-term secure facilities, and reception/diagnostic centers. We did not include other placements outside the home.
  • Civil Commitment (At least 20 states and the federal government operate facilities for the purposes of detaining people convicted of sexual crimes after their sentences are complete. These facilities and the confinement there are technically civil, but in reality are quite like prisons. People under civil commitment are held in custody continuously from the time they start serving their sentence at a correctional facility through their confinement in the civil facility.): The Sex Offender Civil Commitment Programs Network conducts an annual survey, and the civil commitment data came from an email with SOCCPN President Shan Jumper on May 11, 2017, estimating that there were 6 or 7 women total, nationally (based on the SOCCPN 2016 Annual Survey). And according to the Common Questions about Civil Commitment as a Sexually Violent Person (Adopted by the ATSA and the Sex Offender Civil Commitment Programs Network Executive Boards of Directors on October 13, 2015), there are “a few women throughout the country who have been committed.”
  • Indian Country (correctional facilities operated by tribal authorities or the U.S. Department of the Interior’s Bureau of Indian Affairs): Bureau of Justice Statistics’ Jails in Indian Country, 2015, Table 5, reporting data for midyear, 2015.
  • Probation and Parole: Our counts of women incarcerated and under community supervision are from Correctional Populations in the United States, 2015, Appendix Table 3, reporting data for December 31, 2015. In order to break out community supervision between Probation and Parole, we used Probation and Parole in the United States, 2015 for the percentage of women in the Parole and Probation population. (Table 6 for Parole and Table 4 for Probation) and applied that ratio to the totals reported in CSAT (these numbers are the numbers that appear, rounded, in table 1 of CPUS). We then adjusted those numbers to ensure that people with multiple statuses were counted only once in their most restrictive category. (Because gender-specific data on people with more than one correctional status was not available, we reduced the number of women on probation and on parole by the ratio (3.54% for parole and 1.64% for probation) we used for Mass Incarceration: The Whole Pie 2017). For readers interested in knowing the total number of people on parole and probation, ignoring any double-counting with other forms of correctional control, there are 113,200 women on parole and 947,400 women on probation.

Several data definitions and clarifications may be helpful to researchers reusing this data in new ways:

  • To avoid double-counting women held in local jails on behalf of the Bureau of Prisons, ICE, U.S. Marshals Service, state, and other prison authorities from being counted twice, we removed the 7,763 women from the jail population reported by the BJS and from the numbers we used to calculate the number of convicted women in local jails. Our calculation for the number of women held in such arrangements was based on data reported for the total number of people held in jails for federal and state authorities in Appendix Table 2 of Prisoners in 2015, and total number of people held in jails for ICE, from page 7 of Report of the Subcommittee on Privatized Immigration Detention Facilities, December 1, 2016, by the Homeland Security Advisory Council and the 2002 Survey Of Inmates In Local Jails, 2002, where our analysis showed that about 8.5% of those held in such arrangements were women.
  • Because we removed ICE detainees and people under the jurisdiction of federal and state authorities from the jail population, we had to recalculate the offense distribution reported in Survey Of Inmates In Local Jails, 2002 who were “convicted” or “not convicted” without the people who reported that they were being held on behalf of state authorities, the Federal Bureau of Prisons or U.S. Immigration and Naturalization Service/U.S. Immigration and Customs Enforcement (ICE). Our definition of “convicted” was those who reported that they were “To serve a sentence in this jail,” “To await sentencing for an offense,” or “To await transfer to serve a sentence somewhere else”. Our definition of not convicted was “To stand trial for an offense,” “To await arraignment,” or “To await a hearing for revocation of probation/parole or community release”.
  • We also accounted for women held in federal pre-trial detention who are confined in facilities other than federal and state prisons. We found 1,536 women held by, or for, the U.S. Marshals Service. Census of Jails: Population Changes, 1999-2013 Table 13 reports that 848 women are in Federal Bureau of Prisons detention centers and we estimate that another 688 are in private facilities contracted out to the U.S. Marshals Service. We included these 1,536 women total in the Federal Prisons slice of the pie.
  • Additionally, a significant portion of the jail population is not in fact under local jurisdiction, but is in a local jail under contract with the U.S. Marshals Service. This population, which in 2013 was 26,176 for both men and women consists of both people who are awaiting trial, and those who are convicted but have not yet been sentenced, so they appear in both the convicted and unconvicted local jail slices. This is part of why, for example, our total pie chart shows 1,000 people “serving” sentences in jails for murder when murder is typically an offense that warrants much longer sentences than would be served in a jail. We have not yet developed a way to separately identify and describe this population, let alone disentangle which portion of the reported numbers is women. (Similarly, in 2013, the Marshals Service had about 10,000 people - mostly in states that do not have separate jail systems - in state prisons for the same reasons.) We hope to, in future versions of this report, develop more detailed ways to display and describe this population.
  • Lastly, the youth slice does not include 333 girls held in adult jails and prisons. There are 300 girls under the age of 17 held in local jails (calculated by comparing the adult female and total female population reported in Table 3 of Bureau of Justice Statistics Jail Inmates in 2015 [https://www.bjs.gov/content/pub/pdf/ji15.pdf]), and 33 girls under the age of 18 held in state or federal prisons (as reported by the Bureau of Justice Statistics Quick Table, Reported number of inmates under age 18 held in custody in federal or state prisons [XLS], December 31, 2000-2015).
  • Separately, note that we did not include a breakdown of the slices by race or ethnicity, because that data does not exist. All together, however, incarcerated women are 53% White, 28.6% Black, 14.2% Hispanic, 2.5% American Indian and Alaskan Native, 0.9% Asian, and 0.4% Native Hawaiian and Pacific Islander.

See the footnotes

  1. Illustrated in our work comparing individual states’ incarceration rates to other countries.  ↩

  2. For example, the Vera Institute of Justice has a useful report on women in jails entitled, Overlooked: Women and Jails in an Era of Reform.  ↩

  3. The median annual income for unincarcerated men was $39,600, and $22,704 for unincarcerated women of similar ages.  ↩

  4. For a detailed analysis of lengths of stay, see comments submitted to the Census Bureau from the Vera Institute of Justice and the Prison Policy Initiative and Dēmos.  ↩

  5. A gender analysis of the Bureau of Justice Statistics’ Indicators of Mental Health Problems Reported by Prisoners and Jail Inmates 2011-12 report is available in the blog post New government report points to continuing mental health crisis in prisons and jails. And for anyone still unsure of the harms of jail, just look at the suicide rates in U.S. jails.  ↩

  6. Probation also varies wildly between states.  ↩

  7. Reporting from the New York Times,Probation May Sound Light, but Punishments Can Land Hard, captures the typical cascading fees and conditions while following one woman’s navigation of probation.  ↩


Acknowledgements

This report was made possible by the partnership of the ACLU Campaign for Smart Justice, the support of the Public Welfare Foundation, and all of the donors, researchers, programmers and designers who helped the Prison Policy Initiative develop the Mass Incarceration: The Whole Pie series of reports.

The ACLU wishes to thank John Cutler, Udi Ofer, and Adina Ellis for their assistance with this report.

About the author

Aleks Kajstura is Legal Director of the Prison Policy Initiative. Her previous publications on women’s incarceration include States of Women’s Incarceration: The Global Context.

About the Prison Policy Initiative

The non-profit non-partisan Prison Policy Initiative was founded in 2001 to expose the broader harm of mass criminalization and spark advocacy campaigns to create a more just society. The organization is most well-known for its big-picture publication Mass Incarceration: The Whole Pie that helps the public more fully engage in criminal justice reform.

About the ACLU Campaign for Smart Justice

The ACLU’s Campaign for Smart Justice is an unprecedented, multiyear effort to cut the nation’s jail and prison populations by 50% and challenge racial disparities in the criminal justice system. The Campaign is building movements in all 50 states for reforms to usher in a new era of justice in America.




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  • November 29, 2017:
    Legal Director Aleks Kajstura will be in DC speaking at the congressional Democratic Women’s Working Group dinner about women’s mass incarceration.

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