Castle Hill Sydney, New South Wales | |||||||||||||||
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Coordinates | 33°43′45″S 151°0′14″E / 33.72917°S 151.00389°E | ||||||||||||||
Population | 40,874 (2021 census)[1] | ||||||||||||||
Established | 1802 | ||||||||||||||
Postcode(s) | 2154[2] | ||||||||||||||
Elevation | 142 m (466 ft) | ||||||||||||||
Location | 34 km (21 mi) north-west of Sydney CBD | ||||||||||||||
LGA(s) | |||||||||||||||
State electorate(s) | Castle Hill | ||||||||||||||
Federal division(s) | Mitchell | ||||||||||||||
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Castle Hill is a suburb of Sydney, New South Wales, Australia, located 34 kilometres north-west of the Sydney central business district[3] and 9.5 kilometres north of Parramatta.[4] It is within the Hills District region, split between the local government areas of The Hills Shire and Hornsby Shire.