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The state of Montana falls beneath the national average rate of incarceration estimating 357 people for every 100,000 based on the statistics of the National Institute of Corrections. The prison population of Montana is roughly about 3.642 housed in different correctional facilities lead by the state. Additional information is included on the links provided bellow.

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Title Address
Beaverhead County Jail 2 South Pacific Suite 16, Dillon, MT 59725
Big Horn County Jail 121 3rd Street, Hardin, MT 59034
Billings City Jail 220 North 27th, Billings, MT 59101
Bozeman City Jail 615 South 16th Avenue, Bozeman, MT 59771
Broadwater County Jail 519 Broadway, Townsend, MT 59644
Butte City Jail 225 Alaska Street, Butte, MT 59701
Carbon County Jail 102 North Broadway Avenue, Red Lodge, MT 59068
Cascade County Jail- Detention Center 3800 Ulm North Frontage Road, Great Falls, MT 59404
Cascade County Regional Prison 3800 Ulm North Frontage Road; Great Falls, MT 59404
Crossroads Correctional Facility 50 Crossroads Drive Shelby, Mt 59474
Deer Lodge County Jail 800 S. Oak Street, Anaconda, MT 59711.
Fergus County Jail 121 8th Avenue South, Lewistown, MT 59457
Flathead County Detention Center 920 South Main Street, Kalispell, MT 59901
Gallatin County Detention Center 605 South 16th Ave. Bozeman, MT 59715
Glacier County Jail 28 6th Ave SE Cut Bank, MT 59427
Great Falls City Jail 112 1st Street South, Great Falls, MT 59403
Helena City Jail 221 Breckenridge Street, Helena, MT 59601
Hill County Jail 1450 2nd Street West, Havre, MT 59501
Jefferson County Jail 110 South Washington, Boulder, MT 59632
Kalispell City Jail 312 1st Avenue East, Kalispell, MT 59901
Lake County Jail 106 4th Avenue East, Polson, MT 59860
Lewis And Clark County Detention Center 221 Breckenridge, Helena, MT 59601
Lewistown Infirmary 800 Casino Creek Dr.; Lewistown, MT 59457
Lincoln County Jail 512 California Avenue, Libby, MT 59923
Missoula County Correctional Facility 2340 Mullan Road, Missoula, MT 59802
Montana State Prison 400 Conley Lake Road Deer Lodge, MT 59722
Montana Women's Prison 701 S. 27th St. Billings, MT 59101
Park County Jail 414 East Callender, Livingston, MT 59047
Polson City Jail 106 1st Street, Polson, MT 59860
Pondera County Jail 20 4th Avenue SW, Conrad, MT 59425
Powell County Jail 313 Fourth St. Deer Lodge, MT 59722
Prairie County Jail 217 West Park Street Terry, MT 59349-0126
Ravalli County Detention Center 205 Bedford Street Suite I Hamilton, MT 59840
Richland County Jail & Detention Center 110 Second Avenue NW, Sidney, MT 59270
Riverside Youth Correctional Facility 2 Riverside Road Boulder, MT 59632-0088
Silver Bow County Detention Center 155 West Quartz Street, Butte, MT 59701
Stillwater County Jail 400 3rd Avenue North, Columbus, MT 59019
Toole County Jail 235 Deer Lodge Avenue, Shelby, MT 59474
Wibaux County Jail 203 South Wibaux Street, Wibaux, MT 59353
Yellowstone County Detention Center 3165 King Avenue East, Billings, MT 59101