Police and sheriff · Montana

Law Enforcement Agencies in Fergus County, Montana

2 agenciesFBI UCR list

The FBI's Uniform Crime Reporting program lists 2 law enforcement agencies in Fergus County, Montana: the county sheriff's office and 1 city or town police department.

Sheriff's Office and County Police in Fergus County

  • Fergus County Sheriff's OfficeCounty sheriff or police · ORI MT0140000 · NIBRS since 2005

City and Town Police Departments in Fergus County

  • Lewistown Police DepartmentCity or town police · ORI MT0140100 · NIBRS since 2005

Where People Arrested in Fergus County Are Held

In most U.S. counties, adults arrested by city police, the sheriff or state troopers are booked into the county jail first. Some larger cities run their own holding jail, so if a person is not on the county roster, call the arresting department.

Law Enforcement in Other Montana Counties

Agency names, types and ORI codes come from the FBI Crime Data Explorer agency list, retrieved November 2026. NIBRS dates show when an agency began reporting incident-level crime data to the FBI.

Frequently Asked Questions

How many police departments are in Fergus County?
The FBI lists 2 law enforcement agencies in Fergus County, including 1 city or town police departments. The full list is on this page.
Who runs the jail in Fergus County?
In most counties the sheriff runs the county jail. In Fergus County that is the Fergus County Sheriff's Office. See Fergus County Jail on this site for the jail's roster or contact details.
What is an ORI number?
An ORI is the nine-character identifier the FBI assigns to each law enforcement agency for crime reporting, for example MT0140000. It is useful when you request records or read crime statistics.