Marion · Council (LGA)

Demographics & Identity in Marion

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

Growth has been a major story for Marion, where the population climbed by 14% since 2011 to reach 94,721 people. While the total number of residents has risen significantly, the typical age has stayed steady at 39 years. This creates a balanced mix of ages, though the number of seniors has grown over the last decade.

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📍 Marion, Council (LGA)

Where Marion sits — Total population

94,721 ▲ +14.1%
  • 1–2: 3 areas
  • 2–3: 0 areas
  • 3–4: 0 areas
  • 4–7: 0 areas
  • 7–12: 2 areas
  • 12–20: 1 area
  • 20–33: 0 areas
  • 33–55: 1 area
  • 55–91: 0 areas
  • 91–150: 5 areas
  • 150–248: 3 areas
  • 248–409: 13 areas
  • 409–675: 22 areas
  • 675–1,115: 38 areas
  • 1,115–1,840: 37 areas
  • 1,840–3,038: 30 areas
  • 3,038–5,014: 40 areas
  • 5,014–8,276: 49 areas
  • 8,276–13,661: 54 areas
  • 13,661–22,550: 57 areas
  • 22,550–37,223: 43 areas
  • 37,223–61,442: 49 areas
  • 61,442–101,420: 39 areas
  • 101,420–167,409: 37 areas
  • 167,409–276,336: 31 areas
  • 276,336–456,137: 8 areas
  • 456,137–752,926: 2 areas
  • 752,926–1,242,825: 1 area

All council (lga) areas, 2021. The marker is Marion — higher than 84% of areas.

Total population compared with the state and national average
Marion94,721
Greater Adelaide 1,387,290
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

With 94,721 residents, Marion is larger than about 85% of similar areas. The typical resident is 39, which is a little younger than the South Australian figure.

94,721 ▲ +14.1%

Higher than 84% of council (lga) areas.

  • 2011: 82,991
  • 2016: 88,618
  • 2021: 94,721

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

39 yrs → 0.0%

Younger than 67% of council (lga) areas.

  • 2011: 39 yrs
  • 2016: 39 yrs
  • 2021: 39 yrs

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

Age profile

How the population splits across age groups.

Seniors make up 19.0% of the population, a figure that rose 2.2 percentage points since 2011 and is a little above the national average. Children under 15 account for 16.1%, which is slightly below the national figure.

19.0% ▲ +13.4%

Lower than 55% of council (lga) areas.

  • 2011: 16.7%
  • 2016: 17.4%
  • 2021: 19.0%

Share of the population aged 65 years and over.

16.1% ▼ -0.6%

Lower than 71% of council (lga) areas.

  • 2011: 16.2%
  • 2016: 16.2%
  • 2021: 16.1%

Share of the population aged under 15 years.

Age structure

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In Marion, the largest group is Young adults (25–44) at 29%, followed by Older adults (45–64) (24%) and Seniors (65+) (19%).

Identity & relationships

First Nations identity and marital status.

About 1.3% of residents identify as Aboriginal or Torres Strait Islander, which is much lower than most areas. Those in de facto relationships make up 11.4% of the population, an increase of 2.3 percentage points since 2011.

1.3% ▲ +26.8%

Lower than 82% of council (lga) areas.

  • 2011: 1.1%
  • 2016: 1.2%
  • 2021: 1.3%

Share of people who identify as Aboriginal and/or Torres Strait Islander.

11.4% ▲ +25.8%

Lower than 73% of council (lga) areas.

  • 2011: 9.1%
  • 2016: 9.9%
  • 2021: 11.4%

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

Marital status

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In Marion, the largest group is Married at 45%, followed by Never married (37%) and Divorced (10%).

Age & sex structure

  • 85+: 85+: 983 males; 85+: 1,747 females
  • 80–84: 80–84: 935 males; 80–84: 1,268 females
  • 75–79: 75–79: 1,395 males; 75–79: 1,691 females
  • 70–74: 70–74: 2,096 males; 70–74: 2,423 females
  • 65–69: 65–69: 2,514 males; 65–69: 2,901 females
  • 60–64: 60–64: 2,627 males; 60–64: 3,111 females
  • 55–59: 55–59: 2,638 males; 55–59: 2,924 females
  • 50–54: 50–54: 2,680 males; 50–54: 2,868 females
  • 45–49: 45–49: 2,873 males; 45–49: 2,924 females
  • 40–44: 40–44: 3,073 males; 40–44: 3,187 females
  • 35–39: 35–39: 3,435 males; 35–39: 3,688 females
  • 30–34: 30–34: 3,540 males; 30–34: 3,767 females
  • 25–29: 25–29: 3,396 males; 25–29: 3,570 females
  • 20–24: 20–24: 3,107 males; 20–24: 3,233 females
  • 15–19: 15–19: 2,494 males; 15–19: 2,336 females
  • 10–14: 10–14: 2,491 males; 10–14: 2,434 females
  • 5–9: 5–9: 2,704 males; 5–9: 2,565 females
  • 0–4: 0–4: 2,633 males; 0–4: 2,455 females

Sources

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

More for Marion

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Marion [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/lga/LGA44060/marion/topic/demographics-identity