Dundas is a suburb of Sydney, New South Wales, Australia. Dundas is located 21 kilometres north-west of the Sydney central business district, in the local government area of the City of Parramatta, and the electoral division of Bennelong. Dundas is a leafy green suburb, notably due to its centrepiece The Ponds Walk, which follows the Ponds Subiaco Cree…Dundas is a suburb of Sydney, New South Wales, Australia. Dundas is located 21 kilometres north-west of the Sydney central business district, in the local government area of the City of Parramatta, and the electoral division of Bennelong. Dundas is a leafy green suburb, notably due to its centrepiece The Ponds Walk, which follows the Ponds Subiaco Creek. Dundas's postcode is part of the Northern Sydney region.