Lockport is a city in Niagara County, New York, United States. The population was 21,165 at the 2010 census. It is so named from a set of Erie Canal locks within the city. Lockport is the county seat of Niagara County and is surrounded by the town of Lockport. It is part of the Buffalo–Niagara Falls Metropolitan Statistical Area.HistoryThe New York State Legislature authorized the Erie Canal's construction in April 1816. The route proposed by surveyors was to traverse an area in central Niagara County, New York, which was then "uncivilized" and free of White settlers. At the time, the nearest settlers were in nearby Cold Springs, New York. As it became known where the proposed canal was to be built, land speculators began to buy large plots along and near the proposed route of the canal. By December 1820, when the exact location of the step locks had been determined, the area that would become Lockport was owned by only fifteen men, many of whom were Quakers.