Harlem is in Manhattan. Harlem is a neighborhood in the borough
of Manhattan. It's the neighborhood directly above Central
Park.
There are actually two Harlems, West Harlem and East Harlem.
East Harlem, also known as Spanish Harlem, is a predominantly
Latino neighborhood, while West Harlem is the historic black
neighborhood where the Harlem Renaissance took place.
Neighborhoods in New York City do not have precise boundaries,
but generally speaking, West Harlem ends and East Harlem begins at
Fifth Avenue. Fifth Avenue borders Central Park on the east
side.