New Suffolk is a census-designated place (CDP) that roughly corresponds to the hamlet by the same name in the Town of Southold in Suffolk County, New York, United States.

[2] The name of Mr. Holland's company was changed to Electric Boat during this time.

[4] As of the census of 2000, there were 337 people, 172 households, and 98 families residing in the community.

There were 298 housing units at an average density of 414.1 per square mile (159.9/km2).

34.3% of all households were made up of individuals, and 19.8% had someone living alone who was 65 years of age or older.