Australian Capital Territory · State / Territory

Demographics & Identity in Australian Capital Territory

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

Population growth of 27% since 2011 has shaped the Australian Capital Territory into a noticeably young region. The typical resident is just 35, making the territory much younger than most other similar areas across the country.

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📍 Australian Capital Territory, State / Territory

Where Australian Capital Territory sits — Total population

454,499 ▲ +27.2%
  • 4,788–6,243: 1 area
  • 6,243–8,140: 0 areas
  • 8,140–10,614: 0 areas
  • 10,614–13,840: 0 areas
  • 13,840–18,046: 0 areas
  • 18,046–23,530: 0 areas
  • 23,530–30,681: 0 areas
  • 30,681–40,004: 0 areas
  • 40,004–52,162: 0 areas
  • 52,162–68,014: 0 areas
  • 68,014–88,683: 0 areas
  • 88,683–115,634: 0 areas
  • 115,634–150,775: 0 areas
  • 150,775–196,595: 0 areas
  • 196,595–256,340: 1 area
  • 256,340–334,241: 0 areas
  • 334,241–435,817: 0 areas
  • 435,817–568,262: 2 areas
  • 568,262–740,956: 0 areas
  • 740,956–966,133: 0 areas
  • 966,133–1,259,740: 0 areas
  • 1,259,740–1,642,575: 0 areas
  • 1,642,575–2,141,752: 1 area
  • 2,141,752–2,792,630: 1 area
  • 2,792,630–3,641,309: 0 areas
  • 3,641,309–4,747,901: 0 areas
  • 4,747,901–6,190,786: 1 area
  • 6,190,786–8,072,163: 2 areas

All state / territory areas, 2021. The marker is Australian Capital Territory.

Total population compared with the state and national average
Australian Capital Territory454,499
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by about 97,277 people to reach 454,499. This growth has seen the typical age of residents rise slightly from 34 in 2011 to 35 years.

454,499 ▲ +27.2%

  • 2011: 357,222
  • 2016: 397,397
  • 2021: 454,499

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

35 yrs ▲ +2.9%

  • 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.

Younger people dominate the age structure, with 32.4% being adults aged 25 to 44. Meanwhile, the proportion of seniors aged 65 and over is 13.7%, which is well below the national figure of 17.2%.

13.7% ▲ +28.1%

  • 2011: 10.7%
  • 2016: 12.6%
  • 2021: 13.7%

Share of the population aged 65 years and over.

18.2% ▼ -1.7%

  • 2011: 18.6%
  • 2016: 18.7%
  • 2021: 18.2%

Share of the population aged under 15 years.

Age structure

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In Australian Capital Territory, the largest group is Young adults (25–44) at 32%, followed by Older adults (45–64) (22%) and Children (0–14) (18%).

Identity & relationships

First Nations identity and marital status.

About 2% of the population are Aboriginal and Torres Strait Islander people, which is a little below the Australian average. In terms of relationships, 12.5% of people are in a de facto partnership, a figure that has risen since 2011.

12.5% ▲ +17.3%

  • 2011: 10.7%
  • 2016: 11.5%
  • 2021: 12.5%

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

Marital status

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In Australian Capital Territory, the largest group is Married at 47%, followed by Never married (39%) and Divorced (8%).

Age & sex structure

  • 85+: 85+: 2,864 males; 85+: 4,316 females
  • 80–84: 80–84: 3,328 males; 80–84: 4,271 females
  • 75–79: 75–79: 5,463 males; 75–79: 6,290 females
  • 70–74: 70–74: 8,007 males; 70–74: 9,157 females
  • 65–69: 65–69: 8,641 males; 65–69: 9,872 females
  • 60–64: 60–64: 10,246 males; 60–64: 11,239 females
  • 55–59: 55–59: 11,663 males; 55–59: 12,263 females
  • 50–54: 50–54: 13,353 males; 50–54: 13,570 females
  • 45–49: 45–49: 14,486 males; 45–49: 14,795 females
  • 40–44: 40–44: 16,018 males; 40–44: 16,129 females
  • 35–39: 35–39: 18,318 males; 35–39: 18,918 females
  • 30–34: 30–34: 18,969 males; 30–34: 19,497 females
  • 25–29: 25–29: 19,738 males; 25–29: 19,543 females
  • 20–24: 20–24: 17,084 males; 20–24: 17,173 females
  • 15–19: 15–19: 13,415 males; 15–19: 12,936 females
  • 10–14: 10–14: 14,012 males; 10–14: 13,086 females
  • 5–9: 5–9: 15,002 males; 5–9: 14,158 females
  • 0–4: 0–4: 13,766 males; 0–4: 12,918 females

Sources

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

More for Australian Capital Territory

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Australian Capital Territory [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/ste/8/australian-capital-territory/topic/demographics-identity