There are 5 places named Johnston Island in Canada.
All places in the world called "Johnston Island".
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)