Lincolndale is a hamlet and census-designated place (CDP) located in the town of Somers in Westchester County, New York, United States.

[2] At the 2000 census there were 2,018 people, 717 households, and 590 families residing in the hamlet.

There were 742 housing units at an average density of 529.9 per square mile (204.6/km2).

[5] Of the 717 households, 43.8% had children under the age of 18 living with them, 70.0% were married couples living together, 8.9% had a female householder with no husband present, and 17.6% were non-families.

About 1.4% of families and 0.8% of the population were below the poverty line, including none of those under the age of 18, or over 65.