Sydney - Outer South West · Region (SA4)

Demographics & Identity in Sydney - Outer South West

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

Nearly half of the 297,292 people in Sydney - Outer South West are married. This is a noticeably young region, where the typical resident is just 35. It has seen significant growth, adding about 61,488 people since 2011.

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📍 Sydney - Outer South West, Region (SA4)

Where Sydney - Outer South West sits — Total population

297,292 ▲ +26.1%
  • 1–2: 3 areas
  • 2–3: 0 areas
  • 3–4: 0 areas
  • 4–7: 0 areas
  • 7–11: 1 area
  • 11–19: 1 area
  • 19–30: 1 area
  • 30–50: 1 area
  • 50–81: 0 areas
  • 81–132: 1 area
  • 132–214: 1 area
  • 214–349: 0 areas
  • 349–569: 1 area
  • 569–927: 1 area
  • 927–1,511: 1 area
  • 1,511–2,461: 0 areas
  • 2,461–4,010: 2 areas
  • 4,010–6,532: 1 area
  • 6,532–10,641: 2 areas
  • 10,641–17,336: 2 areas
  • 17,336–28,242: 0 areas
  • 28,242–46,009: 1 area
  • 46,009–74,953: 0 areas
  • 74,953–122,107: 9 areas
  • 122,107–198,924: 21 areas
  • 198,924–324,066: 28 areas
  • 324,066–527,936: 21 areas
  • 527,936–860,060: 8 areas

All region (sa4) areas, 2021. The marker is Sydney - Outer South West — higher than 68% of areas.

Total population compared with the state and national average
Sydney - Outer South West297,292
Greater Sydney 5,231,147
New South Wales 8,072,163
Australia 25,422,788

Population

How many people, and the typical age.

The population grew 26% since 2011 to reach 297,292 people. The typical resident is 35, which is noticeably younger than the New South Wales figure of 39.

297,292 ▲ +26.1%

Higher than 68% of region (sa4) areas.

  • 2011: 235,804
  • 2016: 262,064
  • 2021: 297,292

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

35 yrs ▲ +2.9%

Younger than 86% of region (sa4) areas.

  • 2011: 34 yrs
  • 2016: 35 yrs
  • 2021: 35 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 22.3% of the population, which is well above the national figure of 18.2%. This helps explain the young profile, while seniors aged 65 and over are well below the state average at 13.3%.

13.3% ▲ +39.0%

Lower than 76% of region (sa4) areas.

  • 2011: 9.6%
  • 2016: 11.9%
  • 2021: 13.3%

Share of the population aged 65 years and over.

22.3% ▼ -1.5%

Higher than 98% of region (sa4) areas.

  • 2011: 22.7%
  • 2016: 22.1%
  • 2021: 22.3%

Share of the population aged under 15 years.

Age structure

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In Sydney - Outer South West, the largest group is Young adults (25–44) at 28%, followed by Older adults (45–64) (23%) and Children (0–14) (22%).

Identity & relationships

First Nations identity and marital status.

About 4.0% of residents are Aboriginal and Torres Strait Islander, which is about the same as the Australian average. People in de facto relationships make up 9.5% of the population, a figure much lower than most similar areas.

9.5% ▲ +20.1%

Lower than 87% of region (sa4) areas.

  • 2011: 7.9%
  • 2016: 9.0%
  • 2021: 9.5%

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

Marital status

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In Sydney - Outer South West, the largest group is Married at 50%, followed by Never married (35%) and Divorced (8%).

Age & sex structure

  • 85+: 85+: 1,300 males; 85+: 2,375 females
  • 80–84: 80–84: 2,020 males; 80–84: 2,399 females
  • 75–79: 75–79: 3,398 males; 75–79: 3,704 females
  • 70–74: 70–74: 5,372 males; 70–74: 5,834 females
  • 65–69: 65–69: 6,332 males; 65–69: 6,926 females
  • 60–64: 60–64: 7,455 males; 60–64: 8,086 females
  • 55–59: 55–59: 7,987 males; 55–59: 8,713 females
  • 50–54: 50–54: 8,521 males; 50–54: 8,759 females
  • 45–49: 45–49: 9,605 males; 45–49: 9,798 females
  • 40–44: 40–44: 10,074 males; 40–44: 10,089 females
  • 35–39: 35–39: 11,129 males; 35–39: 12,007 females
  • 30–34: 30–34: 10,225 males; 30–34: 11,535 females
  • 25–29: 25–29: 9,384 males; 25–29: 10,062 females
  • 20–24: 20–24: 9,528 males; 20–24: 9,020 females
  • 15–19: 15–19: 9,924 males; 15–19: 9,383 females
  • 10–14: 10–14: 11,043 males; 10–14: 10,518 females
  • 5–9: 5–9: 11,622 males; 5–9: 11,101 females
  • 0–4: 0–4: 11,249 males; 0–4: 10,807 females

Sources

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

More for Sydney - Outer South West

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Sydney - Outer South West [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa4/123/sydney-outer-south-west/topic/demographics-identity