Masonville is a town in Delaware County, New York, United States.

[5] The western town line is the border of Chenango County.

[4] Most of the town drains west via Masonville Creek to the Susquehanna River near Bainbridge, but the southern edge of the town and the eastern tip drain south via several tributaries to the West Branch Delaware River.

As of the census[8] of 2000, there were 1,405 people, 525 households, and 399 families residing in the town.

19.6% of all households were made up of individuals, and 8.2% had someone living alone who was 65 years of age or older.