New York Borders: States, Map & Complete Guide

Vermont and New York are separated by a border located on New York's eastern edge. Lake Champlain forms much of this boundary in the north, while a land border continues to the south.

The New York-Vermont border extends for about 90 miles from Quebec in the north to Massachusetts in the south. Lake Champlain creates a natural water border for much of the northern section. New York counties along this border include Clinton, Essex, Warren, Washington, and Rensselaer. The Adirondack Mountains dominate the New York side of the border region.

Massachusetts and New York are separated by a border in New York's eastern region. The boundary runs roughly east-west in the south and north-south in the north where the three states of New York, Massachusetts, and Vermont meet.

The New York-Massachusetts border extends for about 50 miles. The border follows relatively straight survey lines through the Berkshire and Taconic mountain regions. New York counties along this border include Rensselaer, Columbia, and Berkshire. The border region is known for its mountainous terrain and cultural attractions.

Connecticut and New York are separated by a border in New York's southeastern region. The boundary runs roughly north-south from Massachusetts in the north to Long Island Sound in the south.

The New York-Connecticut border extends for about 90 miles. The border follows a relatively straight line through rolling hills and suburban areas. New York counties along this border include Dutchess, Putnam, and Westchester. The New York City metropolitan area extends to this border, with Stamford, Greenwich, and other Connecticut cities forming part of the greater New York region.

Pennsylvania and New York are separated by a border located on New York's southern edge. The boundary runs roughly east-west from Lake Erie in the west to New Jersey in the east.

The New York-Pennsylvania border extends for about 300 miles. The border follows a mostly straight line across southern New York. The Delaware River forms a small portion of the eastern border. New York counties along this border include Chautauqua, Cattaraugus, Allegany, Steuben, Chemung, Tioga, Broome, Delaware, and others. Major cities near this border include Buffalo and Binghamton in New York.

New Jersey and New York are separated by borders in New York's southern region. The Hudson River forms much of the boundary, while a land border exists in the northwest.

The New York-New Jersey border includes about 50 miles of land border and about 15 miles along the Hudson River. The Hudson River separates New York City (Manhattan, Bronx) from New Jersey. New York counties along this border include Rockland, Westchester, Bronx, New York (Manhattan), Kings (Brooklyn), and Richmond (Staten Island). Major crossings include the George Washington Bridge, Lincoln Tunnel, and Holland Tunnel.

Quebec and New York are separated by a border located on New York's northern edge. The boundary runs roughly east-west from Vermont in the east to the St. Lawrence River in the west.

The New York-Quebec border extends for about 120 miles. The border follows the 45th parallel north latitude for much of its length. New York counties along this border include Clinton, Franklin, and St. Lawrence. The Adirondack Mountains dominate the New York side. Major crossing points include Champlain-Lacolle and Massena.

Ontario and New York are separated by water borders running through the St. Lawrence River, Lake Ontario, the Niagara River, and Lake Erie. These waterways create the international boundary.

The New York-Ontario border extends for hundreds of miles through various water bodies. The St. Lawrence River forms the border in the northeast, Lake Ontario in the north, the Niagara River (including Niagara Falls) in the west, and Lake Erie in the southwest. New York counties along this border include St. Lawrence, Jefferson, Oswego, Wayne, Monroe, Niagara, and Erie. Major cities on this border include Buffalo and Rochester in New York, and Toronto and Niagara Falls in Ontario.

Lake Erie borders New York's southwestern region, while Lake Ontario borders the northwestern region. Both lakes form parts of New York's border with Canada (Ontario).

New York's Lake Erie coastline extends for about 50 miles, with Erie and Chautauqua counties having Erie shoreline. Buffalo sits at the eastern end of Lake Erie. Lake Ontario provides New York with about 300 miles of coastline (including islands and bays), with counties including Jefferson, Oswego, Wayne, Monroe, Orleans, and Niagara having Ontario shoreline. Rochester is the largest city on Lake Ontario. The Erie Canal connects the two lakes and was historically crucial for commerce.

The Atlantic Ocean forms New York's southeastern boundary along Long Island and the mouth of the Hudson River. The coastline includes New York Harbor, one of the world's finest natural harbors.

New York's Atlantic coastline extends for about 127 miles of general shoreline, though the tidal shoreline is much longer. Long Island extends about 120 miles into the Atlantic, with the island's southern shore forming most of New York's ocean coastline. New York counties with Atlantic coastline include Queens, Nassau, Suffolk, Kings (Brooklyn), Richmond (Staten Island), and New York (Manhattan). New York City developed around New York Harbor where the Hudson River meets the Atlantic.