NYC's Island Geography: Manhattan, Staten Island & the Rest

New York City spans five boroughs across three primary islands and the mainland. The two most prominent islands are:

1. Manhattan — the dense, iconic core, bounded by the Hudson, East, and Harlem Rivers.
2. Staten Island — the least populated, most suburban borough, sitting in New York Bay.

The Other Islands

• Long Island — contains Brooklyn and Queens (geographically part of the same island as Nassau/Suffolk counties).
• Roosevelt Island — narrow East River strip, technically part of Manhattan.
• Randall's & Wards Islands — joined by landfill, in the East River.
• Governors Island — former military base, now parkland.
• Ellis & Liberty Islands — federal property in the harbor.
• City Island — nautical community in the Bronx.

Mainland Connection

The Bronx is the only borough on the North American mainland, connected to Manhattan by bridges and the Harlem River Ship Canal.

So while "Manhattan and Staten Island" answers the "two islands" question, the full picture is an archipelago city — 36+ islands in total — stitched together by bridges, tunnels, and ferries.