where does harlem begin on the east side
Harlem Harlem is located in Upper Manhattan, often referred to as Uptown by locals. It stretches from the East River in the east, to the Hudson River to the west; and between 155th Street in the north, where it meets Washington Heights, and an uneven boundary along the south that runs along either 96th Street east of Fifth Avenue or 110th Street west of Fifth Avenue.
Upper East Side Given its very high population density and per capita income ($85,081 in 2000), the neighborhood contains the greatest concentration of individual wealth in Manhattan.[40] As of 2011, the median household income for the Upper East Side was $117,903.[41] As of 2011, 60.6% of adults (25+) had earned a bachelor's degree or higher.[41]