Inwood is the northernmost neighborhood on Manhattan Island in the New York City borough of Manhattan and New York State's County of New York. This is not to say, however, that Inwood is the northernmost neighborhood of the borough of Manhattan (because the borough of Manhattan includes a small part of the North American mainland (Marble Hill) to the north of the island of Manhattan). While Inwood is sometimes thought to be a sub-section of Washington Heights, the larger and better-known neighborhood to its south, most people residing in, or familiar with, Upper Manhattan consider Inwood to be a separate and distinct neighborhood in its own right. It has earned the nickname "The Singer's Slum" as many opera singers, musicians, composers and actors live in the area.