Forestdale is a village and census-designated place (CDP) within the town of Sandwich in Barnstable County, Massachusetts, United States.

[3] It is bordered by the town of Mashpee to the south and by Otis Air National Guard Base to the west.

Massachusetts Route 130 (Forestdale Road) is the main route through the community, leading north to Sandwich village and south through Mashpee to Santuit in Barnstable.

[2] As of the census[5] of 2000, there were 3,992 people, 1,307 households, and 1,049 families residing in the CDP.

14.7% of all households were made up of individuals, and 5.4% had someone living alone who was 65 years of age or older.