Juveniles held in prisons, penal or correctional institutions fell 16.4% to 366 persons in Portugal in 2015, according to the United Nations.
Historically, juveniles held in prisons, penal or correctional institutions in Portugal reached an all time high of 634 persons in 2011 and an all time low of 366 persons in 2015.
Portugal has been ranked 18th within the group of 54 countries we follow in terms of juveniles held in prisons, penal or correctional institutions, 3 places above the position seen 10 years ago.
| Juveniles Held in Prisons, Penal or Correctional Institutions | Unit | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| Algeria | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 494 | 418 | 533 | 476 | ||||||
| Belgium | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | |
| Canada | persons | ... | ... | ... | ... | ... | ... | ... | ... | 1,810 | 1,721 | 1,457 | 1,370 | 1,019 | ... | |||||||
| France | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 669 | 692 | 712 | 724 | 731 | ||||
| Germany | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ||
| Iceland | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 2.00 | ... | 2.00 | 1.00 | 2.00 | ... | ... | ||||
| Ireland | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 55.0 | 49.0 | 34.0 | 23.0 | 8.00 | ||||||
| Italy | persons | ... | ... | ... | ... | ... | ... | ... | ... | 1,207 | 1,302 | 1,428 | 1,401 | 1,312 | ||||||||
| Mauritania | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| Morocco | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 1,050 | 1,068 | ... | ... | ... | ... | ... | ||||
| Portugal | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 521 | 547 | 634 | 613 | 553 | ||||||
| Spain | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 1,485 | 1,323 | 1,152 | 957 | ||||
| Tunisia | persons | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| United Kingdom | persons | ... | ... | ... | ... | ... | ... | ... | ... | 3,161 | 2,539 | 2,364 | 1,970 | 1,431 |
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