Where is North Bethesda Maryland? What County is North Bethesda in

The town of North Bethesda belongs (from oldest to youngest) to the state Maryland and Montgomery County.

The town of North Bethesda covers 23.0 km2, has 38,610 inhabitants (2000 census) and a density of 1,678.70 inhabitants per km2. The average altitude is 120 m.

What is considered North Bethesda?
Is North Bethesda the same as Rockville?
Is North Bethesda a good place to live?
Where should I live in North Bethesda?