Is a county and region the same thing?

Answer 1

In the United States, forty-eight of the fifty states are divided into counties. Louisiana is divided into sixty-four parishes, which function much the same as counties in other states.

Alaska is divided into boroughs, which function as the local government entity in Alaska, though services that are typically provided by counties or parishes in other states, might be provided by the State of Alaska rather than the borough. In fact, more than half of the geographical area of Alaska has no separate borough, and is considered the Unorganized Borough. In the Unorganized Borough, the State of Alaska provides all services, even the ones that would be provided by a borough, when such exists elsewhere in Alaska.

So clearly, a county is not the same thing as a state, since where counties do exist, a state is made up of counties.