Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Marble Hill is the northernmost section of the Borough of Manhattan in New York City, United States. Marble Hill is part of the borough of Manhattan and New York County but is located on the North American mainland, not on Manhattan Island. Because of its geography, Marble Hill is often associated with the Bronx. Broadway is the area s primary thoroughfare. At the end of the 20th century national retailers opened outlets in the neighborhood. The United States Census Bureau defines Marble Hill as Census Tract 309 of New York County. As of the 2000 census it had a population of 7,820 on a land area of 0.3065 km² 0.1183 sq mi, 75.7 acres.