Castlecrag, New South Wales
| Castlecrag Sydney, New South Wales | |||||||||||||||
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Middle Harbour, view from Castlecrag | |||||||||||||||
| Coordinates | 33°48′05″S 151°13′12″E / 33.80137°S 151.22007°E | ||||||||||||||
| Population | 2,965 (2021 census) | ||||||||||||||
| • Density | 1,772.5/km2 (4,591/sq mi) | ||||||||||||||
| Established | 1860s | ||||||||||||||
| Postcode(s) | 2068 | ||||||||||||||
| Elevation | 85 m (279 ft) | ||||||||||||||
| Area | 1.5 km2 (0.6 sq mi) | ||||||||||||||
| Location | 8 km (5 mi) north of Sydney CBD | ||||||||||||||
| LGA(s) | City of Willoughby | ||||||||||||||
| State electorate(s) | Willoughby | ||||||||||||||
| Federal division(s) | Bradfield | ||||||||||||||
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Castlecrag is a suburb on the lower North Shore of Sydney, in the state of New South Wales, Australia 8 kilometres north of the Sydney central business district, in the local government area of the City of Willoughby.
Castlecrag is a suburb of historical significance that is bounded to the north, east and south by Middle Harbour and to the west by Eastern Valley Way. Castlecrag shares its postcode, 2068, with the surrounding suburbs of Willoughby, Middle Cove and North Willoughby.