How many places in Canada are called Plum Island?

There is one place named Plum Island in Canada.

All places in the world called "Plum Island".

Location Plum Island:

• Ontario

Cities

Wellington (4)
Windsor (4)
Centreville (3)
Sidney (3)
Borden (3)
Princeton (3)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Kingston (3)
Victoria (3)
Havelock (3)
Benton Station (2)
Delisle (2)
Frobisher (2)
Keswick (2)
Marysville (2)
Port Burwell (2)
Saint George (2)
Valleyfield (2)
Badger (2)
Burwash (2)
Clyde River (2)
Elgin (2)
Griffin (2)
Lethbridge (2)