Greater Sydney · Capital City

Demographics & Identity in Greater Sydney

Who lives here — how many people, how old they are, and how communities identify.

Over 407,000 people moved into Greater Sydney between 2016 and 2021, pushing the total population to 5,231,147. This growth has happened alongside a slight ageing of the population, though the typical resident remains a little younger than the national figure at 37.

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📍 Greater Sydney, Capital City

Where Greater Sydney sits — Total population

5,231,147
  • 1–2: 3 areas
  • 2–3: 0 areas
  • 3–5: 0 areas
  • 5–9: 0 areas
  • 9–16: 2 areas
  • 16–28: 1 area
  • 28–48: 1 area
  • 48–83: 0 areas
  • 83–144: 1 area
  • 144–251: 1 area
  • 251–436: 0 areas
  • 436–758: 2 areas
  • 758–1,316: 0 areas
  • 1,316–2,287: 1 area
  • 2,287–3,974: 2 areas
  • 3,974–6,906: 1 area
  • 6,906–11,999: 3 areas
  • 11,999–20,850: 1 area
  • 20,850–36,228: 0 areas
  • 36,228–62,950: 0 areas
  • 62,950–109,382: 1 area
  • 109,382–190,063: 1 area
  • 190,063–330,254: 2 areas
  • 330,254–573,849: 3 areas
  • 573,849–997,120: 0 areas
  • 997,120–1,732,595: 2 areas
  • 1,732,595–3,010,558: 4 areas
  • 3,010,558–5,231,147: 2 areas

All capital city areas, 2021. The marker is Greater Sydney — higher than 99% of areas.

Total population compared with the state and national average
Greater Sydney5,231,147
New South Wales 8,072,163
Australia 25,422,788

Population

How many people, and the typical age.

Greater Sydney has one of the highest populations at this level, with 5,231,147 people. The typical resident is 37, which is a little younger than the typical person in Australia.

5,231,147

Higher than 99% of capital city areas.

  • 2016: 4,823,991
  • 2021: 5,231,147

The number of people who usually live in the area, counted on Census night.

37 yrs

Younger than 77% of capital city areas.

  • 2016: 36 yrs
  • 2021: 37 yrs

Half the population is older than this age, and half younger.

Age profile

How the population splits across age groups.

Children under 15 make up 18.4% of the population, which is much higher than most similar areas. Meanwhile, the proportion of people aged 65 and over rose to 15.2%, though this is still a little below the national figure.

15.2%

Higher than 58% of capital city areas.

  • 2016: 13.9%
  • 2021: 15.2%

Share of the population aged 65 years and over.

18.4%

Higher than 76% of capital city areas.

  • 2016: 18.7%
  • 2021: 18.4%

Share of the population aged under 15 years.

Age structure

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In Greater Sydney, the largest group is Young adults (25–44) at 30%, followed by Older adults (45–64) (24%) and Children (0–14) (18%).

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 1.7% of the population, which is much lower than most similar areas. Those in de facto relationships account for 9.7%, a figure that is among the lowest at this level.

9.7%

Lower than 99% of capital city areas.

  • 2016: 8.6%
  • 2021: 9.7%

Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).

Marital status

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In Greater Sydney, the largest group is Married at 48%, followed by Never married (36%) and Divorced (8%).

Age & sex structure

  • 85+: 85+: 40,820 males; 85+: 64,909 females
  • 80–84: 80–84: 45,992 males; 80–84: 56,208 females
  • 75–79: 75–79: 69,511 males; 75–79: 77,803 females
  • 70–74: 70–74: 97,631 males; 70–74: 107,264 females
  • 65–69: 65–69: 111,238 males; 65–69: 123,339 females
  • 60–64: 60–64: 133,198 males; 60–64: 142,487 females
  • 55–59: 55–59: 149,478 males; 55–59: 154,011 females
  • 50–54: 50–54: 157,208 males; 50–54: 165,240 females
  • 45–49: 45–49: 169,568 males; 45–49: 175,147 females
  • 40–44: 40–44: 181,586 males; 40–44: 182,755 females
  • 35–39: 35–39: 203,911 males; 35–39: 209,496 females
  • 30–34: 30–34: 204,099 males; 30–34: 213,685 females
  • 25–29: 25–29: 197,024 males; 25–29: 196,510 females
  • 20–24: 20–24: 176,492 males; 20–24: 166,569 females
  • 15–19: 15–19: 152,229 males; 15–19: 142,533 females
  • 10–14: 10–14: 165,443 males; 10–14: 156,334 females
  • 5–9: 5–9: 169,015 males; 5–9: 160,061 females
  • 0–4: 0–4: 160,794 males; 0–4: 151,568 females

Sources

  • Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).

More for Greater Sydney

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Greater Sydney [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/gccsa/1GSYD/greater-sydney/topic/demographics-identity