Geography of New York City Bronx and Manhattan from Northern New Jersey. The Harlem River, another tidal strait between the East and Hudson Rivers, separates Manhattan from the Bronx. The boroughs of New York City straddle the border between two geologic provinces of eastern North America. Brooklyn and Queens, located on Long Island, are part of the eastern coastal plain. Long Island is a massive moraine which formed at the southern fringe of the Laurentide Ice Sheet during the last Ice Age. The Bronx and Manhattan lie on the eastern edge of the Newark Basin, a block of the Earth's crust which sank downward during
Demographics of New York (state) The top ancestry groups in New York State are Italian American (15.8%), African American (14.4%), Hispanic (14.2%), Irish (12.9%), German (11.1%), English (6%), and Polish (5.27%). 1.5% of the state population is multiracial. New York contains the largest Puerto Rican population in the country, concentrated in parts of New York City such as the Bronx, Brooklyn, and Manhattan. New York also has the largest Dominican population in the country, concentrated in New York City's Upper Manhattan and the Bronx. New York City is home to many blacks, the majority with roots in the United States but a group which includes