Carleton Island
| Geography | |
|---|---|
| Location | St. Lawrence River at Cape Vincent, Jefferson County, New York |
| Coordinates | 44°10′43″N 76°17′17″W / 44.17861°N 76.28806°W |
| Area | 2.8 sq mi (7.3 km2) |
| Highest elevation | 331 ft (100.9 m) |
| Administration | |
New York | |
| County | Jefferson County |
| Demographics | |
| Population | 34 homes with 54 residents (2008) |
Carleton Island is located in the St Lawrence River in upstate New York. One of the Thousand Islands, it is part of the Town of Cape Vincent, in Jefferson County.