How many places in Canada are called Main Duck Island?

There is one place named Main Duck Island in Canada.

All places in the world called "Main Duck Island".

Location Main Duck Island:

• Ontario

Cities

Wellington (4)
Windsor (4)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Kingston (3)
Victoria (3)
Havelock (3)
Sidney (3)
Centreville (3)
Princeton (3)
Borden (3)
Cornwall (2)
Enterprise (2)
Hebron (2)
Lockeport (2)
Newcastle (2)
Roblin (2)
Sandy Lake (2)
Sydney (2)
Beaver (2)
Cambridge (2)
Charlottetown (2)
Delta (2)
Georgetown (2)
Kildonan (2)