Greenville, commonly known as Edgemont, is a census-designated place in the town of Greenburgh in Westchester County, New York, United States. The population was 9,394 at the 2020 census. Most of its residents refer to the area as Edgemont, which is also the name of its school district. It is an inner suburb of New York City, lying 22 miles north of Columbus Circle. It is a partial bedroom community, with some of its residents working in Midtown Manhattan.