Unsentenced detainees as proportion of prison population in Japan

Japan: Unsentenced detainees as proportion of prison population was 15.48 in 2024. ▬ Flat

Latest (2024)
15.48
Change on year
up 7.5%
World rank
129th
of 153 countries
All-time high
16.54
in 2003
All-time low
10.72
in 2008
Years of data
22
2003–2024

Unsentenced detainees as proportion of prison population in Japan, 2003–2024

0510152003201320242003: 16.52004: 152005: 13.62006: 12.12007: 11.12008: 10.72009: 10.82010: 11.12011: 11.22012: 10.92013: 10.92014: 11.52015: 11.32016: 11.22017: 11.12018: 11.52019: 12.42020: 13.32021: 12.72022: 12.62023: 14.42024: 15.5

Source: Our World in Data.

Analysis

Japan recorded 15.48 for unsentenced detainees as proportion of prison population in 2024.

The figure is up 7.5% on the previous year and up 34.6% over ten years.

Over the whole period, unsentenced detainees as proportion of prison population in Japan peaked at 16.54 in 2003 and was at its lowest, 10.72, in 2008.

Japan ranks 129th of 153 countries on this measure, in the bottom quarter.

Unsentenced detainees as proportion of prison population in Japan, year by year

Annual values for Unsentenced detainees as proportion of prison population in Japan, 2003 to 2024.
Year Value Change
2003 16.54 —
2004 15.02 -9.2%
2005 13.57 -9.7%
2006 12.11 -10.8%
2007 11.05 -8.8%
2008 10.72 -3.0%
2009 10.85 +1.2%
2010 11.08 +2.1%
2011 11.15 +0.6%
2012 10.94 -1.9%
2013 10.9 -0.4%
2014 11.5 +5.5%
2015 11.26 -2.1%
2016 11.2 -0.5%
2017 11.08 -1.1%
2018 11.5 +3.8%
2019 12.37 +7.6%
2020 13.26 +7.2%
2021 12.68 -4.4%
2022 12.63 -0.4%
2023 14.4 +14.0%
2024 15.48 +7.5%

Japan compared with similar countries

  • Japan's 15.48 is below the median for high income countries, which is 25.75, 60% of the median. (63 countries reporting)
  • Japan's 15.48 is below the median for East Asia & Pacific, which is 23.82, 65% of the median. (21 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2000s 12.84 10.72 16.54 7
2010s 11.3 10.9 12.37 10
2020s 13.69 12.63 15.48 5

Countries ranked near Japan

  1. 126 Macao 17.57 compare
  2. 127 Moldova 17.01 compare
  3. 128 Italy 16.95 compare
  4. 130 Russia 15.45 compare
  5. 131 Kuwait 14.6 compare
  6. 132 Turkey 14.39 compare

See the full ranking of 153 places →

More population data for Japan

All data for Japan →

Frequently asked questions

What is unsentenced detainees as proportion of prison population in Japan?
Unsentenced detainees as proportion of prison population in Japan was 15.48 in 2024, according to Our World in Data.
What is the highest unsentenced detainees as proportion of prison population recorded in Japan?
The highest recorded value was 16.54 in 2003.
What is the lowest unsentenced detainees as proportion of prison population recorded in Japan?
The lowest recorded value was 10.72 in 2008.
How does Japan rank for unsentenced detainees as proportion of prison population?
Japan ranks 129th out of 153 countries with data for 2024.
Is unsentenced detainees as proportion of prison population rising or falling in Japan?
Over the last ten years it is up 34.6%. The long-run trend across the full record is flat.
Where does this Japan data come from?
The figures come from Our World in Data, published as part of Unsentenced detainees as proportion of prison population. Statizoid updates them automatically from the source API.

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Unsentenced detainees as proportion of prison population in Japan. Statizoid, drawing on Our World in Data. Retrieved 11 November 2026, from https://population.statizoid.com/stat/unsentenced-detainees-as-proportion-of-prison-population/japan/

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About this data

Indicator
Unsentenced detainees as proportion of prison population
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
153 places, 2,324 data points, 2001–2024
Last refreshed