The FBI's Uniform Crime Reporting program lists 7 law enforcement agencies in Gallatin County, Montana: the county sheriff's office, 4 city or town police departments, 1 campus police department and 1 other agency.
Sheriff's Office and County Police in Gallatin County
City and Town Police Departments in Gallatin County
College and University Police in Gallatin County
Other Law Enforcement Agencies in Gallatin County
Where People Arrested in Gallatin 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.