There is one place named Irwin in Australia.
All places in the world called "Irwin".
Hamilton (5)
Kingston (5)
Gladstone (5)
Cremorne (4)
Springfield (4)
Darlington (4)
Woodstock (4)
Rosedale (4)
Richmond (4)
Gordon (4)
Windsor (4)
Newstead (4)
Alberton (3)
Broughton (3)
Donnybrook (3)
Greenmount (3)
Laura (3)
Lyndhurst (3)
Mount Pleasant (3)
Oakwood (3)
Seymour (3)
Stonehenge (3)
Windermere (3)
Apsley (3)
Mangalore (3)
Scarborough (3)
Southern Cross (3)
Belmont (3)
Campbelltown (3)
Waratah (3)