Lewiston is a town in Niagara County, New York, United States. The population was 15,944 at the 2020 census. The town and its contained village are named after Morgan Lewis, a governor of New York.

Niagara County is in the U.S. state of New York. As of the 2020 United States census, the population was 212,666. The county seat is Lockport. The county name is from the Iroquois word Onguiaahra; mea