Thornleigh
Thornleigh | |||||||||||||
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Federation style home, Station Street | |||||||||||||
Thornleigh Location in greater metropolitan Sydney | |||||||||||||
Interactive map of Thornleigh | |||||||||||||
| Country | Australia | ||||||||||||
| State | New South Wales | ||||||||||||
| City | Sydney | ||||||||||||
| LGA | |||||||||||||
| Location |
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| Established | 1830s | ||||||||||||
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| • State electorate | |||||||||||||
| • Federal division | |||||||||||||
| Area | |||||||||||||
• Total | 4 km2 (1.5 sq mi) | ||||||||||||
| Elevation | 170 m (560 ft) | ||||||||||||
| Population | |||||||||||||
| • Total | 8,898 (2021 census) | ||||||||||||
| • Density | 2,220/km2 (5,800/sq mi) | ||||||||||||
| Postcode | 2120 | ||||||||||||
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Thornleigh is a suburb in the Upper North Shore region of Sydney in the state of New South Wales, Australia. Thornleigh is located 22 kilometres north-west of the Sydney central business district in the local government area of Hornsby Shire. The source of the Lane Cove River is located in Thornleigh.