Riverstone is a suburb of Sydney in the state of New South Wales, Australia. Riverstone is located 48 kilometres (30 mi) north-west of the Sydney central business district, in the Blacktown local government area and part of the Greater Western Sydney region. Originally settled in 1803 as part of a government stock farm, Riverstone is one of the oldest towns in Australia.

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.