As of 2024, there were approximately 97,800 prisoners in custody in the United Kingdom, with the vast majority of these being prisoners in the jurisdiction of England and Wales at 87,900 prisoners, with a further 8,000 in Scotland, and 1,900 in Northern Ireland.
In 2024, there were 87,869 men and 3,635 women in prisons in England and Wales. Compared with the previous year, this represented an increase for both men and women. This represented a peak in the number of prisoners during this provided time period, and was also the peak for the United Kingdom as a whole.
Demographics of prisoners
There were 28,524 prisoners in their 30s in England and Wales in 2023, the most of any age group. In this year there were also 3,625 prisoners who were aged between 15 and 20, with a further 21,590 prisoners who were in their 20s. In terms of the ethnicity of prisoners in England and Wales, 61,823 people in jail were White, 10,494 were Black, and 6,840 were Asian. In the same year, the most common religious faith of prisoners was Christianity, at 38,184 inmates, followed by people with no religion at 26,715.
Increase in prison officers since 2017
The 23,614 prison officers working in England and Wales in 2024 was almost as high as 2011 when there were 24,369 officers. From 2010 onwards, the number of prison officers fell from 24,830 to 18,251 by 2014, and stayed at comparably low levels until 2018. Low government expenditure on Prisons during the same time period suggests this was a result of the austerity policies implemented by the UK government at that time. The government has steadily increased spending on prisons since 2019/20, with spending on prisons reaching 6.09 billion in 2022/23. This has however not been enough to avert a possible overcrowding crisis in England and Wales, which had just 768 spare prison places in September 2023.
This page covers weekly estate summary data. View monthly prison breakdown.
Latest prison population figures for 2023.
In 2024, there were 29,339 prisoners in their 30s in custody in England and Wales, compared with 21,381 in their 20s, 18,175 in their 40s, 15,620 aged 50 or over, and 3,354 aged between 15 and 20.
Latest prison population figures for 2020.
In 2023, there were 599 people aged between 30 and 39 imprisoned in Northern Ireland, the most of any group during this year. By comparison, there were just 43 people aged between 18 and 20 in this year.
The latest National Statistics on prison population projections in England and Wales.
This annual release presents prison population projections for England and Wales from November 2022 to March 2027. It is produced to aid policy development, capacity planning and resource allocation within the Ministry of Justice (MoJ) and His Majesty’s Prison and Probation Service (HMPPS). Sub-population estimates are presented alongside the effects of legislation, sentencing activity, and other factors relevant to the prison population.
The publication is released by the Ministry of Justice (MoJ) and produced in accordance with arrangements approved by the UK Statistics Authority.
If you have any comments on the methods used for prison projections, please contact us: ESD@justice.gov.uk.
As of 2023, there were approximately 2,527 prisoners in Scotland aged between 25 and 34, the highest among the provided age groups. By contrast, there were just 248 prisoners aged 65 or over.
In February 2025, the prisoner population of England and Wales stood at 87,199 while the operating capacity of prisons was 88,635. As of this month, the spare capacity of prisons in England and Wales was 1,436.
In 2022/23 there were approximately 7,426 male prisoners in Scotland, compared with 282 female ones. During the provided time period, male prisoner numbers in Scotland peaked during 2019/20, when there were 7,796, while the number of female prisoners was highest in 2011/12, at 469.
The latest National Statistics on prison population projections in England and Wales.
This annual release presents prison population projections for England and Wales from July 2021 to March 2026. It is produced to aid policy development, capacity planning and resource allocation within the Ministry of Justice (MOJ) and Her Majesty’s Prison and Probation Service (HMPPS). Sub-population estimates are presented alongside the effects of legislation, sentencing activity, and other factors relevant to the prison population.
The publication is released by the Ministry of Justice (MOJ) and produced in accordance with arrangements approved by the UK Statistics Authority.
If you have any comments on the methods used for prison projections, please contact us: ESD@justice.gov.uk.
The latest National Statistics on prison population projections.
This annual release gives the projected monthly prison population in England and Wales. Sub-population estimates are presented alongside the effects of legislation, sentencing activity, and other factors relevant to the prison population.
The publication is released by the Ministry of Justice (MOJ) and produced in accordance with arrangements approved by the UK Statistics Authority.
If you have any comments on the methods used for prison projections, please contact us: email.
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The size and composition of the prison population of Norhern Ireland and compared data with previous years during the last decade.
Source agency: Justice (Northern Ireland)
Designation: National Statistics
Language: English
Alternative title: Northern Ireland Prison Population
This publication provides key statistics relating to offenders who are in prison or under Probation Service supervision. It covers flows into these services (receptions into prison or probation starts) and flows out (discharges from prison or probation terminations) as well as the caseload of both services at specific points in time. Latest figures for the quarter July to September 2013 are provided compared to the same period in 2012 for each topic as well as reference to longer term trends, with the exception of the prison population where more recent data is available (31 December 2013).
The contents of the report will be of interest to the public, government policy makers, the agencies responsible for offender management at both national and local levels, and others who want to understand more about the prison population, probation caseload, licence recalls and returns to custody.
The prison population grew rapidly between 1993 to 2008 – an average of 4% a year. This rapid rise was driven by:
The rise in the prison population slowed considerably from the summer of 2008, in part due to the introduction of the Criminal Justice and Immigration Act (CJIA) 2008, which changed sentencing and offender management in ways which helped to reduce growth in the prison population. For more information, see http://www.legislation.gov.uk/ukpga/2008/4/contents" class="govuk-link">CJIA 2008.
This flatter trend continued until the public disorder seen in UK cities from 6 to 9 August 2011 which had an immediate but temporary impact on the prison population. During 2012 and into 2013, the prison population began to fall due to a falling remand population and a continued decline in the number of under 18s in custody. The falling remand population during 2012 reflected falling volumes going through the courts plus the introduction, in December 2012, of measures restricting the use of remand for offenders who would be unlikely to receive a custodial sentence .
In the second half of 2013 the prison population increased, due to a relatively large rise in the remand population which may have been the result of changes to court committals.
The ‘Story of the Prison Population 1993 to 2012’ is an in-depth look at what happened to the prison population between 1993 and 2012 and the major factors contributing to the changes.
The prison population at 31 December 2013 was 84,163, an increase of 406 (less than 1%) compared to 31 December 2012 when the total population was 83,757.
At 31 December 2013, there were:
The overall small rise in the total prison population over the last year was due to an increase in the remand population whilst the sentenced population fell.
The remand population increased by 6%, driven entirely by an increase in the untried population (up 8%), while the convicted unsentenced population remained fairly stable. However, within the year-on-year increase there were some changing trends during the year. The remand population had fallen throughout much of 2012 reflecting falling volumes going through the courts. This continued into 2013 following the introduction, in December 2012, of measures restricting the use of remand for offenders who would be unlikely to receive a custodial sentence. By February 2013, the full impact of these measures had been realised and the remand population then remained relatively stable until the end of August 2013 when it began to rise. It continued to rise until mid November, with this temporary rise thought to be the result of changes to court committals.
The sentenced population fell by 1% over the last year due to the continued fall in the number of young offenders (aged under 21) in custody - young adults (aged 18-20) were down 14% and 15-17 year olds down 21%. The sentenced adult (age 21+) population remained relatively stable.
Although the overall adult sentenced population remained stable, the numbers serving long determinate sentences of 4 years or more continued to rise (up 4% from 24,462 to 25,470), while those serving 12 months to 4 year sentences fell by 2%.
Nearly two-thirds of the increase in the numbers serving l
In 2024, there were 1,272 Albanians imprisoned in England and Wales, the highest foreign nationality in that year. Additionally, there were 906 Polish nationals in jail, and 750 Romanians, the second, and third-highest among foreign nationalities.
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The release (generally annual) gives the projected monthly prison population in England and Wales for the next six years. Sub-population (such as gender) estimates are presented alongside the effects of legislation, sentencing activity, and so on relevant to the prison population.
Source agency: Justice
Designation: National Statistics
Language: English
Alternative title: Prison population projections
Prison unit costs cover the direct and overall cost of prison places and prisoner population. This publication covers 2019 to 2020.
The bulletin is released by the Ministry of Justice and produced in accordance with arrangements approved by the UK Statistics Authority.
Prison unit cost statistics is produced and handled by the Ministry of Justice’s (MOJ) accounting professionals and production staff. Pre-release access of up to 24 hours is granted to the following persons:
Minister’s Office:
Permanent Secretary’s Office:
Financial Officer Group:
Data & Analytical Services Directorate:
External Communications:
The United Kingdom spent approximately 6.85 billion British pounds on its prison system in 2023/24, an increase when compared to the previous year. Between 2011/12 and 2019/20 the UK consistently spent less than it did in 2009/10 and 2010/11, mainly due to the austerity policies pursued by the coalition Government of the time. Throughout this time period, expenditure on prisons was lowest in 2014/15 at 393 billion pounds, and highest in the most recent financial year. Prisoners and prison costs The prisoner population of the United Kingdom was around 92,803 in 2023. Although this was quite a high figure in historical terms, the incarceration rate among the UK's three jurisdictions has fallen slightly since 2008. Nevertheless, there is evidence the government is struggling to cope with the size of the prison population. The number of spare prison places in England and Wales fell to a low of just 768 in September 2023. The average cost of a prison place has also increased recently. In 2015/16, a prison place cost approximately 35,182 pounds per year, reaching 48,162 in 2020/21, before falling slightly to 46,696 pounds in 2021/22. Steep rise in prison violence in the mid-2010s In 2018, there were over 34,000 assaults among prisoners, and a further 10,200 assaults on prison staff in England and Wales. This was far higher than in the years preceding 2018, and correlated with a reduction in prison officers. In 2017, there were just 18,400 prison officers working in England and Wales, compared with almost 25,000 in 2010. Since 2017, however, the number of prisons officers has increased, and in 2023 there were approximately 22,300. It is unclear if this increase in prison officers has succeeded in reducing prisoner violence, with the number of incidents recently rising again following a huge reduction of incidents during the COVID-19 pandemic.
This publication sets out statistics on adult male prison population and capacity, from 09 January 2023 to 08 July 2024.
As of 2024, there were approximately 97,800 prisoners in custody in the United Kingdom, with the vast majority of these being prisoners in the jurisdiction of England and Wales at 87,900 prisoners, with a further 8,000 in Scotland, and 1,900 in Northern Ireland.