| Arncliffe Sydney, New South Wales | |||||||||||||||
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 Arncliffe Post Office | |||||||||||||||
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| Population | 12,023 (2021 census)[1] | ||||||||||||||
| • Density | 3,340/km2 (8,650/sq mi) | ||||||||||||||
| Established | 1840 | ||||||||||||||
| Postcode(s) | 2205 | ||||||||||||||
| Area | 3.6 km2 (1.4 sq mi) | ||||||||||||||
| Location | 11 km (7 mi) south of Sydney CBD | ||||||||||||||
| LGA(s) | Bayside Council | ||||||||||||||
| State electorate(s) | Rockdale | ||||||||||||||
| Federal division(s) | Barton | ||||||||||||||
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Arncliffe is a suburb in southern Sydney, in the state of New South Wales, Australia. Arncliffe is located 11 kilometres south of the Sydney central business district, in the local government area of the Bayside Council.
Arncliffe is south of the Cooks River and Wolli Creek, close to Sydney Airport. Arncliffe is a mostly residential area featuring low-density detached and semi-detached houses and some medium density town houses and blocks of flats. There are also some areas of commercial and light industrial developments.