North Salem is a town in the northeastern section of Westchester County, New York, United States. The town, incorporated in 1788, is a suburb of New York City, located approximately 50 miles north of Midtown Manhattan. As of the 2020 census, North Salem was recorded as possessing a population of 5,243 people living on a land area of 21.3…North Salem is a town in the northeastern section of Westchester County, New York, United States. The town, incorporated in 1788, is a suburb of New York City, located approximately 50 miles north of Midtown Manhattan. As of the 2020 census, North Salem was recorded as possessing a population of 5,243 people living on a land area of 21.37 square miles.