may refer to a location in the United States:

*Plum Island (Massachusetts), island in northeastern Essex County **Plum Island, Massachusetts, village on Plum Island in Massachusetts *Plum Island (New York), island off northeastern Long Island **Plum Island Animal Disease Center, on the New York island **Plum Island Light, on the New York island **Plum Island (novel) (Plum Island (novel)), by Long Island author Nelson DeMille, who uses the animal disease center as one of the settings *Plum Island (Wisconsin), one of the five islands that make up Washington Township in Door County **Plum Island Range Lights, on the Wisconsin island *Plum Island (Aleutian Islands), one of the Andreanof Islands (List of Aleutian Islands#Andreanof Islands (Nii?u?in tanangis)) in Alaska

disambig

de:Plum Island