Arno Bay · Urban Centre

Demographics & Identity in Arno Bay

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

A typical resident in Arno Bay is 57, which is far older than the national figure of 38. This small community has aged significantly over the last decade, with a growing number of seniors now making up over a third of the population.

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📍 Arno Bay, Urban Centre

Where Arno Bay sits — Total population

219 ▼ -3.5%
  • 1–2: 3 areas
  • 2–3: 0 areas
  • 3–5: 0 areas
  • 5–9: 0 areas
  • 9–16: 2 areas
  • 16–27: 1 area
  • 27–47: 2 areas
  • 47–81: 2 areas
  • 81–139: 14 areas
  • 139–241: 145 areas
  • 241–418: 340 areas
  • 418–723: 351 areas
  • 723–1,252: 304 areas
  • 1,252–2,168: 191 areas
  • 2,168–3,752: 181 areas
  • 3,752–6,495: 107 areas
  • 6,495–11,242: 69 areas
  • 11,242–19,459: 44 areas
  • 19,459–33,683: 31 areas
  • 33,683–58,304: 17 areas
  • 58,304–100,921: 8 areas
  • 100,921–174,689: 8 areas
  • 174,689–302,378: 4 areas
  • 302,378–523,401: 5 areas
  • 523,401–905,982: 2 areas
  • 905,982–1,568,210: 1 area
  • 1,568,210–2,714,494: 2 areas
  • 2,714,494–4,698,656: 2 areas

All urban centre areas, 2021. The marker is Arno Bay — lower than 89% of areas.

Total population compared with the state and national average
Arno Bay219
5603, SA 422
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population is among the smallest at this level, totaling 219 people. This is a slight decrease from 2011, when the area had 227 residents.

219 ▼ -3.5%

Lower than 89% of urban centre areas.

  • 2011: 227
  • 2016: 234
  • 2021: 219

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

57 yrs ▲ +18.8%

Older than 88% of urban centre areas.

  • 2011: 48 yrs
  • 2016: 50 yrs
  • 2021: 57 yrs

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

Age profile

How the population splits across age groups.

Seniors aged 65 and over make up 36.1% of the population, a figure far above the 17.2% national average. This group has grown by 17 percentage points since 2011, while children under 15 now account for 17.4%.

36.1% ▲ +92.1%

Higher than 88% of urban centre areas.

  • 2011: 18.8%
  • 2016: 25.2%
  • 2021: 36.1%

Share of the population aged 65 years and over.

17.4% ▼ -5.4%

Lower than 52% of urban centre areas.

  • 2011: 18.3%
  • 2016: 17.5%
  • 2021: 17.4%

Share of the population aged under 15 years.

Age structure

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In Arno Bay, the largest group is Seniors (65+) at 34%, followed by Older adults (45–64) (24%) and Young adults (25–44) (19%).

Identity & relationships

First Nations identity and marital status.

De facto relationships are more common here than in most areas, at 14.9%, which is well above the national figure of 11.5%. About 2.3% of residents identify as Aboriginal and Torres Strait Islander, a figure that has barely changed since 2011.

2.3% ▼ -13.2%

Lower than 73% of urban centre areas.

  • 2011: 2.6%
  • 2016: 1.3%
  • 2021: 2.3%

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

14.9% ▲ +2.8%

Higher than 68% of urban centre areas.

  • 2011: 14.5%
  • 2016: 12.4%
  • 2021: 14.9%

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

Marital status

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In Arno Bay, the largest group is Married at 48%, followed by Never married (25%) and Divorced (15%).

Age & sex structure

  • 85+: 85+: 0 males; 85+: 0 females
  • 80–84: 80–84: 0 males; 80–84: 5 females
  • 75–79: 75–79: 3 males; 75–79: 5 females
  • 70–74: 70–74: 13 males; 70–74: 19 females
  • 65–69: 65–69: 8 males; 65–69: 14 females
  • 60–64: 60–64: 17 males; 60–64: 10 females
  • 55–59: 55–59: 3 males; 55–59: 8 females
  • 50–54: 50–54: 4 males; 50–54: 7 females
  • 45–49: 45–49: 0 males; 45–49: 6 females
  • 40–44: 40–44: 5 males; 40–44: 4 females
  • 35–39: 35–39: 3 males; 35–39: 7 females
  • 30–34: 30–34: 5 males; 30–34: 7 females
  • 25–29: 25–29: 0 males; 25–29: 8 females
  • 20–24: 20–24: 0 males; 20–24: 4 females
  • 15–19: 15–19: 3 males; 15–19: 3 females
  • 10–14: 10–14: 5 males; 10–14: 4 females
  • 5–9: 5–9: 6 males; 5–9: 12 females
  • 0–4: 0–4: 4 males; 0–4: 9 females

Sources

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

More for Arno Bay

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Arno Bay [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/ucl/UCL422005/arno-bay/topic/demographics-identity