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 centered on the Emerton Leisure Centre. It is quite close to the suburbs of Mount Druitt, New South Wales and St Marys.
The suburb's boundary is formed to the south and east by Popondetta Road continuing north around the extent of Popondetta Park. To the west, the boundary runs along Halmahera Creek until the creek meets Luxford Road and follows the road south to the intersection with Popondetta Road.