Mortdale is located 20 kilometres south of the Sydney central business district and is part of the St George area .
Mortdale , New South Wales -- Mortdale is a suburb in southern Sydney , in the state of New South Wales , Australia .
suburb is located 20 kilometres south of the Sydney central business district and is part of the St George area .
Mortdale , New South Wales -- Mortdale is a suburb in southern Sydney , in the state of New South Wales , Australia .