5421, SA · Postcode

Demographics & Identity in 5421, SA

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

Older adults aged 45 to 64 make up the biggest group in postcode 5421, where 40.7% of residents fall into this bracket. The area is sparsely populated and has grown significantly older, with a typical resident now aged 56. This is far older than the national figure of 38 years.

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📍 5421, SA, Postcode

Where 5421, SA sits — Total population

135 ▼ -41.0%
  • 1–2: 1 area
  • 2–2: 0 areas
  • 2–4: 0 areas
  • 4–5: 2 areas
  • 5–8: 3 areas
  • 8–12: 2 areas
  • 12–19: 2 areas
  • 19–29: 12 areas
  • 29–44: 19 areas
  • 44–67: 35 areas
  • 67–102: 30 areas
  • 102–155: 70 areas
  • 155–237: 97 areas
  • 237–360: 129 areas
  • 360–549: 158 areas
  • 549–836: 168 areas
  • 836–1,273: 181 areas
  • 1,273–1,938: 179 areas
  • 1,938–2,951: 157 areas
  • 2,951–4,493: 179 areas
  • 4,493–6,842: 176 areas
  • 6,842–10,418: 210 areas
  • 10,418–15,865: 268 areas
  • 15,865–24,158: 254 areas
  • 24,158–36,786: 182 areas
  • 36,786–56,016: 93 areas
  • 56,016–85,299: 28 areas
  • 85,299–129,888: 8 areas

All postcode areas, 2021. The marker is 5421, SA — lower than 94% of areas.

Total population compared with the state and national average
5421, SA135
Goyder 4,060
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population is very small and has shrank by 41% since 2011, losing about 94 people to leave just 135 residents. The typical age has also climbed, becoming 8 years older since the last census.

135 ▼ -41.0%

Lower than 94% of postcode areas.

  • 2011: 229
  • 2016: 139
  • 2021: 135

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

56 yrs ▲ +16.7%

Older than 94% of postcode areas.

  • 2011: 48 yrs
  • 2016: 48 yrs
  • 2021: 56 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 only 5.9% of the area, which is far below the national figure of 18.2%. Meanwhile, seniors aged 65 and over account for 28.9%, a figure that is far above the Australian average.

28.9% ▲ +42.0%

Higher than 87% of postcode areas.

  • 2011: 20.3%
  • 2016: 11.5%
  • 2021: 28.9%

Share of the population aged 65 years and over.

5.9% ▼ -68.9%

Lower than 99% of postcode areas.

  • 2011: 19.0%
  • 2016: 12.9%
  • 2021: 5.9%

Share of the population aged under 15 years.

Age structure

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In 5421, SA, the largest group is Older adults (45–64) at 44%, followed by Seniors (65+) (31%) and Young adults (25–44) (12%).

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 7.4% of the population, which is well above the national figure. People in de facto relationships account for 20.9%, a proportion that is among the highest for similar areas.

20.9% ▲ +203.7%

Higher than 94% of postcode areas.

  • 2011: 6.9%
  • 2016: 17.1%
  • 2021: 20.9%

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

Marital status

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In 5421, SA, the largest group is Never married at 42%, followed by Married (30%) and Divorced (13%).

Age & sex structure

  • 85+: 85+: 0 males; 85+: 3 females
  • 80–84: 80–84: 0 males; 80–84: 0 females
  • 75–79: 75–79: 5 males; 75–79: 0 females
  • 70–74: 70–74: 6 males; 70–74: 7 females
  • 65–69: 65–69: 9 males; 65–69: 14 females
  • 60–64: 60–64: 7 males; 60–64: 6 females
  • 55–59: 55–59: 7 males; 55–59: 11 females
  • 50–54: 50–54: 10 males; 50–54: 4 females
  • 45–49: 45–49: 8 males; 45–49: 5 females
  • 40–44: 40–44: 3 males; 40–44: 0 females
  • 35–39: 35–39: 0 males; 35–39: 0 females
  • 30–34: 30–34: 6 males; 30–34: 4 females
  • 25–29: 25–29: 3 males; 25–29: 5 females
  • 20–24: 20–24: 0 males; 20–24: 3 females
  • 15–19: 15–19: 0 males; 15–19: 0 females
  • 10–14: 10–14: 0 males; 10–14: 0 females
  • 5–9: 5–9: 0 males; 5–9: 3 females
  • 0–4: 0–4: 0 males; 0–4: 5 females

Sources

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

More for 5421, SA

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 5421, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5421/5421-sa/topic/demographics-identity