High Quality Content by WIKIPEDIA articles! Carlingford is a suburb of Sydney, in the state of New South Wales, Australia. Carlingford is located 22 kilometres north-west of the Sydney central business district in the local government areas of the The Hills Shire, Hornsby Shire and the City of Parramatta. Carlingford is on the north-eastern outskirts of the Greater Western Sydney region and is on the south-eastern outskirts of the Hills District and western outskirts of Northern Suburbs.