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Home / Montana / Cascade County / Sheriff & police

Sheriff and police in Cascade County.
Montana. By agency.

5 listed agencies make arrests in Cascade County: the sheriff, city police departments, campus police and state agencies. The arresting agency is usually not the facility that holds the person; the county page has the jail.

Cascade County jail information Emergency? Call 911. Agency lines below are non-emergency numbers.
Sheriff's office1 of 5

Cascade County Sheriffs Office / Cascade County Regional Prison

3800 Ulm North Frontage Road
Great Falls, MT 59404
Non-emergency line
(406) 454-6820
Location
Great Falls, MT
Find the jail that holds people Directions

Booking, bond and release questions go to the jail, not the arresting agency. Confirm where the person is before you act.

Sheriff's office

The sheriff is usually the police department for unincorporated areas and the operator of the county jail. An arresting station is usually not the holding facility.

Cascade County Sheriffs Office / Cascade County Regional Prison

Sheriff's office · Great Falls
Address
3800 Ulm North Frontage Road
Great Falls, MT 59404
Directions
Phone
(406) 454-6820
Non-emergency. Emergency: 911.
Covers
County sheriff’s office. The jail is usually a Sheriff facility, not the arresting station.
Custody
Arrests here usually book into the county jail. Jail page

From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.

Municipal police departments

These departments police that city. A local arrest still usually books into the county jail.

Great Falls Police Department

City police · Great Falls
Address
112 1st Avenue South
Great Falls, MT 59401
Directions
Covers
City police listed for Great Falls.

From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.

Highway patrol (2)

Freeway collisions, traffic stops, and commercial inspection. City streets belong to that city’s police or the Sheriff.

Montana Highway Patrol District 2

Highway patrol
Covers
State traffic enforcement for freeways and unincorporated roads.

From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.

Montana Highway Patrol District 2 - Great Falls Office

Highway patrol · Great Falls
Address
3800 Ulm North Frontage Road
Great Falls, MT 59404
Directions
Covers
State traffic enforcement for freeways and unincorporated roads.

From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.

Other law-enforcement locations

Special jurisdictions, constables, marshals, and other listed public-safety agencies in this county.

Great Falls International Airport Police

Law enforcement · Great Falls
Address
2800 Terminal Drive, 2nd Floor
Great Falls, MT 59404
Directions

From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.

Clear information.
Clear boundaries.

Jail411 lists the public agencies that make arrests so families can find the right door. We are not a government agency, a police department or a live custody-records service.

Is the sheriff's office the same as the jail?

Often the sheriff runs the county jail, but the jail is a separate facility with its own address, phone and rules. Open the jail page for booking, visiting, mail and money details.

How do I find out which department made the arrest?

Ask the person, check any paperwork or citation, or call the sheriff's non-emergency line. City arrests belong to that city's police; unincorporated areas and county roads usually belong to the sheriff; freeways usually belong to the state patrol.

Can these agencies tell me if someone is in custody?

The jail can. The arresting agency may confirm an arrest but does not hold the person. Call the jail's booking or information line first.

What if a listing needs correcting?

Send us the page and the detail that needs attention. Include the agency's official page when you have it. Do not send private booking documents or other sensitive personal information.

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Jail411 source information preserved on 2026-09-25.Official sources appear alongside the relevant information.