Prisons

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

Photo gallery View on map

Data is aggregated from public sources and may be incomplete or out of date.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.

OvercrowdedWith photos

Mack Alford Correctional Center

United States · Atoka

Medium

Type

State prison

Capacity

760

Held

777

Overcrowded (102%)

Mackenrode SS-Baubrigade III

Germany

Type

Concentration camp

Capacity

—

Held

—

Mackinac County Jail

United States · Saint Ignace

Type

County jail

Capacity

Held

Under capacity (86%)Low

Maclaren Youth Correctional Facility

United States · Woodburn

Juvenile

Type

State prison

Capacity

186

Held

129

Under capacity (69%)

Macomb Correctional Facility

United States · New Haven

Medium

Type

Medium Security

Capacity

1,400

Held

1,355

Under capacity (97%)

Macomb County Jail

United States · Mount Clemens

Medium

Type

County jail

Capacity

1,238

Held

1,148

Under capacity (93%)Low

Macomb County Juvenile Justice Center

United States · Mount Clemens

Juvenile

Type

County jail

Capacity

140

Held

Under capacity (62%)Low

Macon County Detention Center

United States · Franklin

Type

County jail

Capacity

Held

—

Macon County Detention Facility

United States · Tuskegee

Type

County jail

Capacity

—

Held

—

Macon County Jail

United States · Oglethorpe

Maximum

Type

County jail

Capacity

425

Held

329

Under capacity (77%)Low

Macon County Sheriff

United States · Decatur

Type

—

Capacity

—

Held

—

Macon Regional Youth Detention Center

United States · Macon

Juvenile

Type

State prison

Capacity

Held

Under capacity (13%)Low

Macon State Prison

United States · Oglethorpe

Type

State prison

Capacity

1,762

Held

1,703

Under capacity (97%)

Macon Transitional Center

United States · Macon

Minimum

Type

State prison

Capacity

156

Held

157

Overcrowded (101%)

Macon Youth Development Campus

United States · Macon

Juvenile

Type

State prison

Capacity

150

Held

Under capacity (19%)Low

Macoupin County Jail

United States · Carlinville

Type

County jail

Capacity

Held

—

MAC pour femmes

Senegal

Type

—

Capacity

—

Held

—

Macquarie Correctional Centre

Australia · Wellington

Maximum

Type

Multi-level

Capacity

—

Held

—

Macquarie Harbour Penal Station

Australia

Type

—

Capacity

—

Held

—

Madawaska Regional Correctional Center

Canada · St. Hilaire

Type

—

Capacity

—

Held

—

Maddela Municipal Jail

Philippines

Type

—

Capacity

—

Held

—

Madera Adult Correctional Facility

United States · Madera

Type

County jail

Capacity

—

Held

463

Madera County Juvenile Detention Facility

United States · Madera

Juvenile

Type

County jail

Capacity

Held

—

Madera County Juvenile Hall

United States · Madera

Juvenile

Type

County jail

Capacity

Held

—

Madison Correctional Facility

United States · Madison

Minimum

Type

State prison

Capacity

662

Held

550

Under capacity (83%)

Madison Correctional Institution

United States · Madison

Type

State prison

Capacity

1,189

Held

1,259

Overcrowded (106%)

Madison Correctional Institution

United States

Type

—

Capacity

—

Held

—

Madison Correctional Institution (Florida)

United States

mixed

Type

State prison

Capacity

1,054

Held

—

Madison County Courthouse Facility

United States · Huntsville

Type

County jail

Capacity

—

Held

—

Madison County Criminal Justice Complex

United States · Jackson

Type

County jail

Capacity

304

Held

340

Overcrowded (112%)Low