Cardinia · Sub-region (SA3)

Demographics & Identity in Cardinia

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

Nearly half of the population in Cardinia is married, reflecting a community with a strong family focus. The area has grown quickly, adding about 44,000 people since 2011. It is a noticeably young place where the typical resident is 34, which is four years younger than the national figure.

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📍 Cardinia, Sub-region (SA3)

Where Cardinia sits — Total population

118,342 ▲ +59.2%
  • 1–2: 3 areas
  • 2–2: 0 areas
  • 2–4: 0 areas
  • 4–6: 0 areas
  • 6–9: 2 areas
  • 9–15: 2 areas
  • 15–23: 1 area
  • 23–37: 0 areas
  • 37–57: 1 area
  • 57–90: 0 areas
  • 90–141: 1 area
  • 141–221: 1 area
  • 221–347: 1 area
  • 347–545: 2 areas
  • 545–854: 3 areas
  • 854–1,340: 0 areas
  • 1,340–2,101: 3 areas
  • 2,101–3,296: 1 area
  • 3,296–5,169: 2 areas
  • 5,169–8,107: 3 areas
  • 8,107–12,714: 7 areas
  • 12,714–19,940: 16 areas
  • 19,940–31,273: 30 areas
  • 31,273–49,048: 61 areas
  • 49,048–76,924: 90 areas
  • 76,924–120,643: 70 areas
  • 120,643–189,211: 46 areas
  • 189,211–296,748: 12 areas

All sub-region (sa3) areas, 2021. The marker is Cardinia — higher than 83% of areas.

Total population compared with the state and national average
Cardinia118,342
Greater Melbourne 4,917,750
Victoria 6,503,491
Australia 25,422,788

Population

How many people, and the typical age.

Cardinia has grown 59% since 2011 to reach a total population of 118,342. This is larger than about 84% of similar areas.

118,342 ▲ +59.2%

Higher than 83% of sub-region (sa3) areas.

  • 2011: 74,337
  • 2016: 94,288
  • 2021: 118,342

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

34 yrs → 0.0%

Younger than 89% of sub-region (sa3) areas.

  • 2011: 34 yrs
  • 2016: 34 yrs
  • 2021: 34 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 22.6% of the population, which is well above the national figure of 18.2%. This high number of children helps explain why the area is much younger than most, with seniors aged 65 and over making up only 12.6% of residents.

12.6% ▲ +18.4%

Lower than 82% of sub-region (sa3) areas.

  • 2011: 10.6%
  • 2016: 11.9%
  • 2021: 12.6%

Share of the population aged 65 years and over.

22.6% ▼ -3.2%

Higher than 91% of sub-region (sa3) areas.

  • 2011: 23.4%
  • 2016: 23.1%
  • 2021: 22.6%

Share of the population aged under 15 years.

Age structure

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In Cardinia, the largest group is Young adults (25–44) at 31%, followed by Children (0–14) (23%) and Older adults (45–64) (22%).

Identity & relationships

First Nations identity and marital status.

People in de facto relationships make up 13.0% of the population, which is a little above the national figure. About 1.0% of residents identify as Aboriginal or Torres Strait Islander, a figure that is about the same as the Victorian average.

13.0% ▲ +9.4%

Higher than 63% of sub-region (sa3) areas.

  • 2011: 11.9%
  • 2016: 12.1%
  • 2021: 13.0%

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

Marital status

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In Cardinia, the largest group is Married at 49%, followed by Never married (35%) and Divorced (8%).

Age & sex structure

  • 85+: 85+: 597 males; 85+: 891 females
  • 80–84: 80–84: 835 males; 80–84: 916 females
  • 75–79: 75–79: 1,376 males; 75–79: 1,520 females
  • 70–74: 70–74: 1,908 males; 70–74: 2,231 females
  • 65–69: 65–69: 2,207 males; 65–69: 2,381 females
  • 60–64: 60–64: 2,649 males; 60–64: 2,854 females
  • 55–59: 55–59: 2,984 males; 55–59: 3,194 females
  • 50–54: 50–54: 3,384 males; 50–54: 3,567 females
  • 45–49: 45–49: 3,705 males; 45–49: 3,846 females
  • 40–44: 40–44: 3,988 males; 40–44: 3,914 females
  • 35–39: 35–39: 4,684 males; 35–39: 4,927 females
  • 30–34: 30–34: 4,751 males; 30–34: 5,245 females
  • 25–29: 25–29: 4,170 males; 25–29: 4,448 females
  • 20–24: 20–24: 3,591 males; 20–24: 3,486 females
  • 15–19: 15–19: 3,805 males; 15–19: 3,499 females
  • 10–14: 10–14: 4,241 males; 10–14: 4,100 females
  • 5–9: 5–9: 4,851 males; 5–9: 4,502 females
  • 0–4: 0–4: 4,645 males; 0–4: 4,452 females

Sources

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

More for Cardinia

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Cardinia [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa3/21201/cardinia/topic/demographics-identity