Skip to content
International Centre for Prison Studies Screen decoration graphics
Country JAPAN
Ministry responsible Ministry of Justice
Prison administration Correction Bureau
Contact address 1-1-1 Kasumigaseki, Chiyoda-Ku, Tokyo 100 - 8977, Japan
Telephone/fax/website tel: +81 3 3592 7609
fax: +81 3 3591 3594
Web: www.moj.go.jp
Head of prison administration
(and title)
Yoshinobu Onuki
Director General
Prison population total
(including pre-trial detainees / remand prisoners)
68,788
at mid-2012 (national prison administration, via Asian and Pacific Conference of Correctional Administrators)
Prison population rate
(per 100,000 of national population)
54
based on an estimated national population of 127.6 million at mid-2012 (from Japanese government statistics bureau figures)
Pre-trial detainees / remand prisoners
(percentage of prison population)
11.3%
(mid-2012)
Female prisoners
(percentage of prison population)
7.8%
(mid-2012)
Juveniles / minors / young prisoners
incl. definition (percentage of prison population)
0.5%
(31.12.2009 - under 20)
Foreign prisoners
(percentage of prison population)
6.7%
(mid-2012)
Number of establishments /
institutions
188
(April 2011 - comprising 62 adult prisons, 8 branch prisons, 7 juvenile prisons, 8 detention houses and 103 branch detention houses. The prison administration has responsibility also for juvenile classification homes and juvenile training schools, whose occupants are not included in the prison population.)
Official capacity of prison system 90,354
(31.12.2009)
Occupancy level (based on official
capacity)
83.3%
(31.12.2009)
Recent prison population trend
(year, prison population total, prison population rate)
1992 45,082 (36)
1995 47,398 (38)
1998 52,713 (42)
2001 65,508 (51)
2004 76,413 (60)
2007 79,809 (62)
2010 72,975 (57)

Please send new or updated information to admin@icps.essex.ac.uk