How big is plum Island in New York?

Plum Island is approximately 3 miles long and 1.5 miles wide, covering an area of about 840 acres. It is located off the northeastern tip of Long Island, New York, in the Long Island Sound. The island is primarily known for housing the Plum Island Animal Disease Research Center, which focuses on research related to animal diseases. Access to the island is restricted due to its research facilities.