Oak Beach–Captree, frequently just called Oak Beach, was a census-designated place (CDP) in the town of Babylon in Suffolk County, New York, United States.

[1] Prior to the 2010 census, the area was part of a larger CDP called Gilgo-Oak Beach-Captree, New York.

[1] The census numbers are presumably for full-time inhabitants; many of these houses are second homes and not primary residences, although the proportion of seasonal residents is decreasing.

The land for these communities is not privately owned, but leased from the Town of Babylon through the year 2065.

If the leases are not renewed at some point in the future, the owners will have to move the houses elsewhere, similar to what happened at High Hill Beach when Jones Beach State Park was created.