| Official Name: | Oak Beach–Captree, New York |
| Settlement Type: | Census-designated place |
| Pushpin Map: | New York |
| Pushpin Label Position: | right |
| Pushpin Label: | Oak Beach-Captree |
| Pushpin Map Caption: | Location within the state of New York |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Suffolk |
| Area Total Km2: | 9.5 |
| Area Land Km2: | 7.1 |
| Area Water Km2: | 2.4 |
| Population As Of: | 2010 |
| Population Total: | 286 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 6 |
| Coordinates: | 40.6392°N -73.2931°W |
| Blank Name: | FIPS code |
| Blank Info: | 36-54112 |
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. The population was 286 at the 2010 census.[1]
Prior to the 2010 census, the area was part of a larger CDP called Gilgo-Oak Beach-Captree, New York. The Oak Beach–Captree CDP consists of some small beach communities on a barrier island along the southern edge of Long Island, including Oak Beach, Oak Island, and Captree Island. As of 2020, Oak Beach–Captree was split into two separate CDPs called Oak Beach and Captree.[2]
Oak Beach–Captree was located at .
According to the United States Census Bureau, the CDP had a total area of 9.5km2, of which 7.1km2 is land and 2.4km2, or 25.03%, is water.[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. However, the residences on the property are owned. 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.