How many places in Australia are called Ridley Island?

There is one place named Ridley Island in Australia.

All places in the world called "Ridley Island".

Location Ridley Island:

• Western Australia

Cities

Hamilton (5)
Kingston (5)
Gladstone (5)
Springfield (4)
Woodstock (4)
Darlington (4)
Rosedale (4)
Richmond (4)
Gordon (4)
Windsor (4)
Newstead (4)
Cremorne (4)
Waratah (3)
Belmont (3)
Campbelltown (3)
Fitzroy (3)
Hampton (3)
Killarney (3)
Lilydale (3)
Raglan (3)
Sunnyside (3)
Woodford (3)
Longford (3)
Saint Helens (3)
Stanley (3)
Denison (3)
Kensington (3)
Oxley (3)
Winton (3)
Croydon (3)