How many places in Australia are called Castle Island?

There is one place named Castle Island in Australia.

All places in the world called "Castle Island".

Location Castle Island:

• Queensland

Cities

Kingston (5)
Gladstone (5)
Hamilton (5)
Woodstock (4)
Darlington (4)
Rosedale (4)
Richmond (4)
Gordon (4)
Windsor (4)
Newstead (4)
Cremorne (4)
Springfield (4)
Salisbury (3)
Stony Creek (3)
Dundas (3)
Kangaroo Flat (3)
Red Hill (3)
Swan Reach (3)
Beaconsfield (3)
Bridgewater (3)
Elliott (3)
Forest Hill (3)
Warburton (3)
Williamstown (3)
Middleton (3)
Sassafras (3)
Somerton (3)
Wattle Flat (3)
Black Springs (3)
Flinders (3)