World Prisons

Prisons

31,353 facilities indexed. Filter by country, security level, type, or gender. Click any card for contact details, visiting rules, and conditions.

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Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.

Masac At Plymouth

United States · Plymouth

Minimum

Type

State prison

Capacity

275

Held

262

Under capacity (95%)Low

Masafu Prison

Uganda

Type

General

Capacity

91

Held

342

Overcrowded (376%)Moderate

Masaka Main Prison

Uganda

Type

General

Capacity

252

Held

1,625

Overcrowded (645%)Moderate

Masaka Prison

Uganda

Type

—

Capacity

—

Held

—

Masaka Women Prison

Uganda

Type

Women

Capacity

32

Held

108

Overcrowded (338%)Moderate

Masanjia Labor Camp

China

Type

—

Capacity

—

Held

—

Ma San Jia Lao Dong Jiao Yang Yuan

China

Type

—

Capacity

—

Held

—

Masbate City Jail

Philippines · Masbate City

Type

City jail

Capacity

—

Held

—

Masbate Provincial Jail

Philippines

Type

—

Capacity

—

Held

—

Masemola Community Corrections

South Africa

Type

Community Corrections

Capacity

—

Held

—

Masindi Main Prison

Uganda

Type

General

Capacity

262

Held

1,393

Overcrowded (532%)Moderate

Masindi Women Prison

Uganda

Type

Women

Capacity

28

Held

99

Overcrowded (354%)Moderate

Masion d'arret et de correction de Divo

Côte d'Ivoire

Type

—

Capacity

—

Held

—

Masiukoŭščyna extermination camp

Belarus

Type

—

Capacity

—

Held

—

Mason County Detention Center

United States · Maysville

Type

County jail

Capacity

131

Held

180

Overcrowded (137%)Low

Mason County Jail

United States · Mason

Maximum

Type

County jail

Capacity

5

Held

2

Under capacity (40%)

Mason County Jail

United States · Havana

Type

—

Capacity

—

Held

—

Mason County Jail

United States

Type

—

Capacity

—

Held

—

Mason County Juvenile Detention Center

United States · Shelton

Juvenile

Type

County jail

Capacity

—

Held

—

Massac County Jail

United States · Metropolis

Type

County jail

Capacity

42

Held

37

Under capacity (88%)Low

Massachusetts Alcohol and Substance Abuse Center

United States · Bridgewater

Type

—

Capacity

—

Held

—

Massachusetts Correctional Institution – Cedar Junction

United States · Walpole

Type

—

Capacity

—

Held

—

Massachusetts Correctional Institution – Framingham

United States · Framingham

Type

—

Capacity

—

Held

—

Massachusetts Correctional Institution - Lancaster

United States

Minimum

Type

—

Capacity

—

Held

—

Massachusetts Correctional Institution – Plymouth

United States · Plymouth

Type

—

Capacity

—

Held

—

Massachusetts Treatment Center

United States · Bridgewater

Medium

Type

State prison

Capacity

667

Held

499

Under capacity (75%)Low

Masseube concentration camp

France

Type

Concentration camp

Capacity

—

Held

—

Masshalderbuch

Germany

Type

—

Capacity

—

Held

—

Massnahmenzentrum Bitzi

Switzerland

Type

—

Capacity

—

Held

—

Massnahmenzentrum Uitikon

Switzerland · Uitikon Waldegg

Type

—

Capacity

—

Held

—