Yorkville is a neighborhood in the Upper East Side of Manhattan, New York City. Its southern boundary is East 79th Street, its northern East 96th Street, its western Third Avenue, and its eastern the East River. 

The Upper East Side is a neighborhood in the borough of Manhattan in New York City, between Central Park/Fifth Avenue, 59th Street, the East River, and 96th Street. The area incorporates several smaller neighborhoods, including Lenox Hill, Carnegie Hill, and Yorkville. Once known as the Silk Stocking District, it is now one of the most affluent neighborhoods in New York City.