Map of New York and Vermont States: A Complete Guide

When you look at a map of New York and Vermont states, the first thing you notice is how Lake Champlain splits them. New York sits on the west side of the lake, Vermont on the east, and the two states share a border that runs roughly 200 miles from the Massachusetts line north to the Canadian border. The lake itself is about 120 miles long, and it is the defining geographic feature of the region. Most of the major roads, towns, and rail lines in this area run along the lake’s shoreline or cross it at a few key points.
How the Border Is Defined
The border between New York and Vermont is not a straight line. It follows the western shore of Lake Champlain for most of its length, then continues north along the Poultney River and a series of small streams and surveyed lines. The United States Geological Survey USGS maps show that the border enters the lake at the southern end near the town of Whitehall, New York, and exits at the lake’s northern outlet into the Richelieu River in Quebec.
The Lake Champlain Boundary
For about 90 miles, the state line runs through the lake itself. This means that the water, including the many islands in the lake, is split between the two states. The largest island, Grand Isle, belongs to Vermont. The New York side of the lake includes the Adirondack Park coastline, while the Vermont side has the Green Mountains visible in the distance. The USGS topographic maps are the standard reference for exactly where the boundary lies in the water, especially around the islands and shallow areas.
The Land Border
South of the lake, the border follows the Poultney River for about 15 miles, then turns east along a surveyed line to the Vermont-Massachusetts-New York tripoint. This section is mostly rural, with farmland and small forests. The Vermont Agency of Transportation VTrans and the New York State Department of Transportation NYSDOT both maintain maps of the border crossings, which are important for road maintenance and emergency services.
Major Roads and Crossings
There are only a handful of places where you can drive directly between New York and Vermont across Lake Champlain. These crossings are critical for travel and commerce.
Bridges and Ferries
The main bridge is the Lake Champlain Bridge, which connects Crown Point, New York, to Chimney Point, Vermont. It carries New York State Route 17 and Vermont Route 17. This is the only road bridge across the lake south of the Canadian border. North of that, you have the Champlain Bridge near Rouses Point, which carries US Route 2 across the lake’s narrow northern end.
For the middle section of the lake, you rely on ferries. The largest is the Charlotte-Essex Ferry, which runs between Charlotte, Vermont, and Essex, New York. It operates from April through October and carries cars and passengers. There is also the smaller Plattsburgh-Grand Isle Ferry, which connects Plattsburgh, New York, to Grand Isle, Vermont. These ferries are part of the state highway systems, and VTrans and NYSDOT coordinate their schedules.
Interstate Highways
Interstate 87 (the Adirondack Northway) runs north-south on the New York side, connecting Albany to the Canadian border. It does not cross into Vermont. On the Vermont side, Interstate 89 runs from Burlington north to the Canadian border. The two interstates are connected by US Route 2 and state highways that cross the lake. If you are driving from Burlington to Albany, you take US Route 7 south to the ferry or the Lake Champlain Bridge, then pick up I-87.
Geographic and Population Features
The map of New York and Vermont states shows a clear contrast in terrain. The New York side is dominated by the Adirondack Mountains, which are part of the larger Appalachian chain. The Vermont side has the Green Mountains, which run north-south through the center of the state. The lake valley between them is relatively flat and fertile.
Key Towns and Cities
On the New York side, the main population centers along the lake are Plattsburgh (about 20,000 people) and the smaller towns of Ticonderoga, Crown Point, and Whitehall. Plattsburgh is the largest city in the region and has a state university campus. On the Vermont side, Burlington is the largest city, with about 45,000 people. Other notable towns include St. Albans, Middlebury, and Vergennes. Burlington has a major airport and a ferry terminal, making it the primary gateway to the region from the Vermont side.
Natural Features Worth Noting
The map shows several notable geographic features. Lake Champlain has a maximum depth of about 400 feet, making it one of the deeper lakes in the United States. The lake is also home to over 70 islands, many of which are part of the Lake Champlain Islands region of Vermont. The Ausable River, which flows into the lake from the New York side, and the Winooski River, which flows in from Vermont, are the two largest tributaries. The USGS provides detailed hydrology maps for these rivers and the lake itself.
Key Takeaways
- The New York-Vermont border runs through Lake Champlain for most of its length, then follows the Poultney River and surveyed lines south of the lake.
- There are only two road bridges across Lake Champlain: the Lake Champlain Bridge (Crown Point-Chimney Point) and the Champlain Bridge (Rouses Point). Ferries connect the middle section.
- The USGS topographic maps are the definitive source for the exact boundary line, especially in the lake and around the islands.
- Major roads include Interstate 87 on the New York side and Interstate 89 on the Vermont side, connected by state routes and ferries.
- Burlington, Vermont, and Plattsburgh, New York, are the largest cities in the region, with Burlington being the primary urban center.