Guam (USA)

Total prison population:
928
Country
Guam (USA)
Prison administration
Department of Corrections
Contact address

P.O.Box 3236, Hagatna (Agana), Guam 96932
Guam

Telephone
Head of prison administration
Fred Bordallo, Director of Corrections

Prison population data

Prison population total (including pre-trial detainees / remand prisoners) 928
at 23.7.2025 (Guam prison administration)
Prison population rate (per 100,000 of national population) 530
based on an estimated national population of 175,000 at July 2025 (from United Nations figures)
Pre-trial detainees / remand prisoners (percentage of prison population) 52.8%
(23.7.2025)
Female prisoners (percentage of prison population) 3.9%
(14.11.2022)
Juveniles / minors / young prisoners incl. definition (percentage of prison population) 0.0%
(Juveniles are detained in the Youth Correctional Facility which is the responsibility of the Department for Youth Affairs. At September 2014 there were 48 so detained.)
Foreign prisoners (percentage of prison population) 0.0%
(14.11.2022)
Number of establishments / institutions 2
(14.11.2022)
Official capacity of prison system 443
(31.12.2022)
Occupancy level (based on official capacity) 147.6%
(31.12.2022)

Prison population trend

Year Prison population total Prison population rate
684 440
542 344
393 249
495 311
559 352
559 352
585 366
754 467
752 460
559 336
539 318

Prison population total

Prison population rate

Pre-trial/remand prison population: trend

The table below gives an indication of the recent trend in the pre-trial/remand prison population. The final row shows the latest figures available.

It consists of the number of pre-trial/remand prisoners in the prison population on a single date in the year (or the annual average) and the percentage of the total prison population that pre-trial/remand prisoners constituted on that day.  

The final column shows the pre-trial/remand population rate per 100,000 of the national population. 

                                                    GUAM (USA)

Year

Number in
pre-trial/remand
imprisonment

Percentage
of total
prison population

Pre-trial/remand
population rate
(per 100,000 of
national population)

2005
2011
2017

171
359
301

33.9%
59.8%
45.1%

101
222
182

2025

490

52.8%

280

It should be noted that the number of pre-trial/remand prisoners fluctuates from day to day, month to month and year to year. Consequently the above figures give an indication of the trend but the picture is inevitably incomplete.                                                      

The pre-trial/remand population rate is calculated on the basis of the national population total. All national population figures are inevitably estimates but the estimates used in the World Prison Brief are based on official national figures, United Nations figures or figures from other recognised international authorities. 

Female prison population: trend

The table below gives an indication of the trend in the female prison population. The final row shows the latest figures available.

It consists of the number of female prisoners in the prison population on a single date in the year (or the annual average) and the percentage of the total prison population that female prisoners constituted on that day. 

The final column shows the female prison population rate per 100,000 of the national population.

                                                     GUAM (USA)

Year

Number of
female
prisoners

Percentage
of total
prison population

Female prison
population rate
(per 100,000 of
national population)

2005
2009
2015
2017

31
21
42
48

6.2%
4.1%
5.6%
7.2%

19.6
13.2
24.3
29.1

2022

27

3.9%

15.7

The number of female prisoners fluctuates and so the above figures give an indication of the trend but the picture is inevitably incomplete.  

The female prison population rate is calculated on the basis of the national population total. All national population figures are inevitably estimates but the estimates used in the World Prison Brief are based on official national figures, United Nations figures or figures from other recognised international authorities.

(If the rate were calculated on the basis of the number of females in the national population it would of course be approximately double the figure in the final column).

Prison population trend up to 2000

The figures below give an indication of the prison population trend in the years up to 2000. They supplement the more recent figures that are shown at the foot of the Overview page and in the graphs below.

                                           GUAM (USA)

Year

Prison
population
total

Prison population rate
(per 100,000 of
national population)

1995
1998
2000

379
629
684

258
411
440

 

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