Emerton is a suburb of Sydney, in the state of New South Wales, Australia. Emerton is located 46 kilometres west of the Sydney central business district, in the local government area of the City of Blacktown and is part of the Greater Western Sydney region. Emerton is primarily a residential suburb with very limited commercial activity centred on the Emerton Leisure Centre. It is quite close to the suburbs of Mount Druitt, New South Wales and St Marys.