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Sydney

Sydney (5.1 million inhabitants): major city of Australia, with country factbook, ranking and leader links.

Last updated: October 2026

About Sydney

CountryAustralia
Population5.1 million

Source: UN World Urbanization Prospects, 2022 Revision (metropolitan agglomeration estimate). Observation date: 2022. The Bureau cross-checked major-city figures against UN WUP; smaller-city figures are presented as published and have not been individually re-verified.

What is the population of Sydney?

Sydney has a metropolitan population of 5.1 million, according to the UN World Urbanization Prospects (2022 Revision) cited on this page.

Where is Sydney located?

Sydney is in Australia. It is a major city of Australia.

What is Sydney known for?

Sydney is a major city of Australia. The Bureau’s profile records its population and country context; see the Australia factbook for the wider national picture.

Other cities in Australia

MelbourneBrisbanePerthAdelaideCanberra
AustraliaRankings

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