Fundamentally it is in the way the Department is managed and more importantly by WHO it is managed, and to whom they report. Police Departments are managed and led by the individual governments of...
the difference between the two are, the police dept. handles city ordinances, and city calls, the sheriffs dept. handles all county calls. they can assist local police in any matter that comes up....
A department is one of many companies from a certain trade, and an apartment is a place to live by paying rant in a building with many other apartments.
An apartment typically refers to a dwelling where someone lives. A department typically refers to a division of a store or company. Such as the shoe department or the maintenance department.