There are 4 places named Boulder Island in Canada.
All places in the world called "Boulder Island".
Wellington (4)
Windsor (4)
Kingston (3)
Victoria (3)
Havelock (3)
Centreville (3)
Sidney (3)
Borden (3)
Princeton (3)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Beaver Crossing (2)
Campbellton (2)
Coronation (2)
Fauquier (2)
Herschel (2)
Lomond (2)
Newport (2)
Rosedale (2)
Seaforth (2)
Tiverton (2)
Whitney (2)
Albany (2)
Bon Accord (2)
Chatham (2)