<P> Staten Island / ˌstætən ˈaɪlənd / is the southernmost and westernmost of the five boroughs of New York City in the U.S. state of New York . Located in the southwest portion of the city , Staten Island is the southernmost part of both the city and state of New York , with Conference House Park located at the southern tip of the island . The borough is separated from New Jersey by the Arthur Kill and the Kill Van Kull , and from the rest of New York by New York Bay . With a 2017 Census -- estimated population of 479,458 Staten Island is the least populated of the boroughs but is the third - largest in land area at 58.5 sq mi ( 152 km ) . The borough is coextensive with Richmond County and until 1975 was referred to as the Borough of Richmond . Its flag was later changed to reflect this . Staten Island has sometimes been called `` the forgotten borough '' by inhabitants who feel neglected by the city government . </P>
<P> Staten Island / ˌstætən ˈaɪlənd / is the southernmost and westernmost of the five boroughs of New York City in the U.S. state of New York . Located in the southwest portion of the city , Staten Island is the southernmost part of both the city and state of New York , with Conference House Park located at the southern tip of the island . The borough is separated from New Jersey by the Arthur Kill and the Kill Van Kull , and from the rest of New York by New York Bay . With a 2017 Census -- estimated population of 479,458 Staten Island is the least populated of the boroughs but is the third - largest in land area at 58.5 sq mi ( 152 km ) . The borough is coextensive with Richmond County and until 1975 was referred to as the Borough of Richmond . Its flag was later changed to reflect this . Staten Island has sometimes been called `` the forgotten borough '' by inhabitants who feel neglected by the city government . </P>
is staten island in new jersey or new york
is staten island in new jersey or new york
New York
New York