There is one place named Blackstone Island in Canada.
All places in the world called "Blackstone Island".
Windsor (4)
Wellington (4)
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)
Centreville (3)
Sidney (3)
Bedford (2)
Canyon City (2)
Cowley (2)
Field (2)
Hudson (2)
Long Point (2)
North Branch (2)
Russell (2)
Seal Cove (2)
Tompkins (2)
Alexandria (2)
Chesterville (2)
Drinkwater (2)
Grand Beach (2)