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) is a town in Grand Isle County, Vermont, United States, founded in 1781 by Ira Allen. The population was 1,952 at the 2000 census. Alburgh is on the Alburgh Tongue, a peninsula extending from Canada into Lake Champlain, and lies on the only road-based route across Lake Champlain to New York state north of Addison, Vermont.
According to the United States Census Bureau, the town has a total area of 48.8 square miles (126.4 km²), of which, 29.3 square miles (75.9 km²) of it is land and 19.5 square miles (50.5 km²) of it (39.96%) is water. Like Alaska; Point Roberts, Washington; Elm Point, Minnesota; and the Northwest Angle, Alburgh can only be reached by crossing water by bridge or boat or by driving overland through Canada. There are bridges to Rouses Point, New York (U.S. Route 2) and Swanton, Vermont, as well as to North Hero island to the southeast; Isle La Motte lies to the southwest.