Thailand · Bangkok · Bangkok
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Large urban prison with eight zones. Foreign female prisoners typically held here in Zone 8 (Lard Yao) prior to transfer.
Klong Prem Central prison (Thai: à¹à¸£à¸·à¸à¸à¸à¹à¸²à¸à¸¥à¸²à¸à¸à¸¥à¸à¸à¹à¸à¸£à¸¡; RTGS: Rueancham Klang Khlong Prem) is a maximum security prison in Chatuchak District, Bangkok, Thailand. The prison has several separate sections. The compound houses up to 20,000 inmates. Within the perimeter of the compound are the Women's Central Prison, often referred to as "Lat Yao" or "Lat Yao women's prison". There is the Central Correction Institution for Drug Addicts (also known as "Bambat Phiset"), Bangkok Special Prison (Thai: à¹à¸£à¸·à¸à¸à¸à¹à¸²à¸à¸´à¹à¸¨à¸©à¸à¸£à¸¸à¸à¹à¸à¸à¸¡à¸«à¸²à¸à¸à¸£), and the Central Correctional Hospital.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
7,000
Current population
9,500
Occupancy
136%
Year opened
1944
Operational
Figures from official sources · verified 21 May 2026 · methodology
Operator
Department of CorrectionsPopulation held
mixed
Opened
1944
Region
Bangkok
Security level
Medium
Death-row facility
No
Substantial overcrowding. Mixed-tier zones include separated foreign and female wings.
Daily morning visits except Sundays; ID required. Foreigner-section visits arranged via consular liaison.
Format: Inmate Name, Klong Prem Central Prison, Ngam Wong Wan Rd, Chatuchak, Bangkok 10900, Thailand.
Consular access for foreigners co-ordinated with embassies; Prisoners Abroad runs a UK pen-pal scheme.
Subject of multiple memoirs by Western prisoners documenting overcrowding and hygiene shortfalls.
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Thaksin Shinawatra (Thai: à¸à¸±à¸à¸©à¸´à¸ à¸à¸´à¸à¸§à¸±à¸à¸£, RTGS: Thaksin Chinnawat [tʰák.sÇn tÉʰīn.nÄ.wát] ; born 26 July 1949) is a Thai former politician, businessman, and police officer who served as the 23rd prime minister of Thailand from 2001 until his overthrow in 2006.
Source: Wikidata + Wikipedia.
Derived signal — not a judgement. How it's calculated
What the score is responding to:
This facility scores 14. The national average across 163 scored Thailand facilities is 1 — 13 points above national average.
Population and occupancy by year. Source: official corrections statistics + oversight reports.
Population held
Same country, matched on type + security level where possible.
Higher risk than 99% of peer facilities in Thailand.
Foreign-section conditions described as significantly overcrowded; consular access for new entrants takes 4-6 weeks on average.
How many of our profile fields are populated. We surface this so families and researchers know the limits.
Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). Klong Prem Central Prison. Retrieved July 21, 2026, from https://worldprisons.com/prisons/klong-prem
"Klong Prem Central Prison." World Prisons. Accessed July 21, 2026. https://worldprisons.com/prisons/klong-prem.
@misc{worldprisons-klong-prem,
author = {{World Prisons}},
title = {Klong Prem Central Prison},
year = {2026},
url = {https://worldprisons.com/prisons/klong-prem},
urldate = {2026-07-21}
}