Plattsburgh is a city in and the county seat of Clinton County, New York, United States, situated on the north-western shore of Lake Champlain. The population was 19,841 at the 2020 census.[2] The population of the surrounding (and separately incorporated) Town of Plattsburgh was 11,886 as of the 2020 census, making the combined population of Plattsburgh to be 31,727. Plattsburgh lies just to the northeast of Adirondack Park, immediately outside of the park boundaries. It is the second largest community in the North Country region (after Watertown), and serves as the main commercial hub for the sparsely populated northern Adirondack Mountains. The land around what is referred to as Plattsburgh was previously inhabited by the Iroquois, Western Abenaki, Mohican and Mohawk people. Samuel de Champlain was the first ever recorded European that sailed into Champlain Valley and later claimed the region as a part of New France in 1609.[3]
Plattsburgh was the site of the amphibious Battle of Plattsburgh in the War of 1812, a key American victory that marked the end of hostilities in the Northern United States. It has been an important military outpost for much of its history, from hosting one of the largest Citizens' Military Training Camps prior to World War I, and Plattsburgh Air Force Base, the east coast center of operations for the Strategic Air Command during much of the Cold War period. The conversion of the base to a civilian airport in the 1990s resulted from the Base Realignment and Closure process during the wind down of the Cold War, and today it serves as a hub for economic development for the region. The city was named one of the Financial Times Top 10 Micro City of the Future several times.[4][when?]
The city of Plattsburgh is the population center and county seat at the heart of the Plattsburgh micropolitan statistical area (MSA) with a population of 82,128 according to the 2010 Census.[5] A statistical area representing the greater Plattsburgh region (as defined by the U.S. government), the Plattsburgh MSA includes all communities in the immediate Clinton County area.
Plattsburgh was founded by Zephaniah Platt in 1785 after he was granted the land by George Clinton.[6] Platt, who was from Poughkeepsie, New York, established the new city of Plattsburgh to buffer emerging American interests in the Saint Lawrence River valley and Lake Champlain valley after the American victory in the American Revolutionary War. The centralized American authority proclaimed Plattsburgh in 1785.
On March 3, 1815, an act was passed by the New York State legislature incorporating the Village of Plattsburgh out of an area that was formerly the eastern part of the town. The first village elections were held on May 2 of that year.[7]
With its significant location on a major water thoroughfare and proximity to the Canada–U.S. border, Plattsburgh has been the site of a number of historic events including the Revolutionary War's Battle of Valcour Island and the War of 1812's Battle of Plattsburgh; the city has a War of 1812 museum. The Battle of Plattsburgh is significant, as it was the final battle of the war between the British/Canadian forces and those of the Americans.