Greenville is a town on the northern border of Greene County, New York, United States.

The northern town line is the border of Albany County.

As of the census[7] of 2000, there were 3,316 people, 1,345 households, and 918 families residing in the town.

There were 1,694 housing units at an average density of 43.5 per square mile (16.8/km2).

26.5% of all households were made up of individuals, and 12.3% had someone living alone who was 65 years of age or older.