Kings Langley is a suburb of Sydney, in the state of New South Wales, Australia. Kings Langley is located 28.3 kilometres north-west in a straight line from the Sydney central business district in the local government area of Blacktown City council.

Blacktown City Council is a local government area in Western Sydney, situated on the Cumberland Plain, approximately 35 kilometres (22 mi) west of the Sydney central business district, in the state of New South Wales, Australia. Established in 1906 as the Blacktown Shire and becoming the Municipality of Blacktown in 1961 before gaining city status in 1979, the City occupies an area of 246.9 square kilometres (95.3 sq mi) and has a population of 410,419, making it the most populous local government area in Sydney.