How many places in Australia are called Slip Island?

There is one place named Slip Island in Australia.

All places in the world called "Slip Island".

Location Slip Island:

• New South Wales

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)
Kangaroo Flat (3)
Salisbury (3)
Stony Creek (3)
Dundas (3)
Red Hill (3)
Swan Reach (3)
Beaconsfield (3)
Bridgewater (3)
Elliott (3)
Forest Hill (3)
Middleton (3)
Warburton (3)
Williamstown (3)
Huntly (3)
Sassafras (3)
Somerton (3)
Wattle Flat (3)
Black Springs (3)