Nassau is a Staten Island Railway station located roughly between the neighborhoods of Tottenville (on the south) and Charleston (on the north), in Staten Island, New York. In the St. George bound direction it is located at Bethel Avenue and Saint Andrews Place. In the Tottenville bound direction it is at the end of Nassau Place. This station contains two four-car length side platforms with an overpass and exits at the south end. The staircase to St.