Law Enforcement Agencies in Sidney, MT MT › Richland County Agencies serving the city of Sidney in MT. Agency Types in Sidney Coroners 2 agencies County Jails 1 agencies Municipal Police 1 agencies Sheriff 1 agencies All Agencies in Sidney, MT McKenzie County Coroners Office Richland County Richland County Coroners Office Richland County Richland County Jail-Detention Center Richland County Richland County Sheriffs Office Richland County Sidney Police Department Richland County
