5158, SA · Postcode

Demographics & Identity in 5158, SA

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

Noticeably older residents than the national average define postcode 5158, where the typical person is 41. The area has grown by 4.4% since 2011 to reach a population of 25,087 people, making it larger than about 89% of similar areas.

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📍 5158, SA, Postcode

Where 5158, SA sits — Total population

25,087 ▲ +4.4%
  • 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 5158, SA — higher than 86% of areas.

Total population compared with the state and national average
5158, SA25,087
Marion 94,721
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The typical resident is 41, which is about the same as the South Australian figure but 3 years older than the national typical age. This age has climbed by 4 years since 2011.

25,087 ▲ +4.4%

Higher than 86% of postcode areas.

  • 2011: 24,029
  • 2016: 24,735
  • 2021: 25,087

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

41 yrs ▲ +10.8%

Younger than 57% of postcode areas.

  • 2011: 37 yrs
  • 2016: 39 yrs
  • 2021: 41 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 18.3% of the population, which is higher than most areas. Meanwhile, the proportion of people aged 65 and over has risen sharply by 7.6 points since 2011, though it remains well below the South Australian figure of 20.0%.

17.0% ▲ +80.3%

Lower than 65% of postcode areas.

  • 2011: 9.4%
  • 2016: 12.6%
  • 2021: 17.0%

Share of the population aged 65 years and over.

18.3% ▼ -6.5%

Higher than 61% of postcode areas.

  • 2011: 19.6%
  • 2016: 19.1%
  • 2021: 18.3%

Share of the population aged under 15 years.

Age structure

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5158, SA splits fairly evenly between Older adults (45–64) (28%) and Young adults (25–44) (26%), with Children (0–14) at 18%.

Identity & relationships

First Nations identity and marital status.

Married people make up 54.3% of the community, while those in de facto relationships account for 11.1%, a figure lower than most areas. Aboriginal and Torres Strait Islander people make up 1.0% of the population, which is a little below both state and national figures.

11.1% ▲ +22.3%

Lower than 66% of postcode areas.

  • 2011: 9.0%
  • 2016: 9.7%
  • 2021: 11.1%

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

Marital status

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In 5158, SA, Married is the majority at 54%; Never married is next at 31%.

Age & sex structure

  • 85+: 85+: 142 males; 85+: 197 females
  • 80–84: 80–84: 188 males; 80–84: 213 females
  • 75–79: 75–79: 347 males; 75–79: 333 females
  • 70–74: 70–74: 600 males; 70–74: 610 females
  • 65–69: 65–69: 768 males; 65–69: 872 females
  • 60–64: 60–64: 861 males; 60–64: 949 females
  • 55–59: 55–59: 850 males; 55–59: 908 females
  • 50–54: 50–54: 815 males; 50–54: 863 females
  • 45–49: 45–49: 823 males; 45–49: 881 females
  • 40–44: 40–44: 889 males; 40–44: 914 females
  • 35–39: 35–39: 890 males; 35–39: 941 females
  • 30–34: 30–34: 739 males; 30–34: 857 females
  • 25–29: 25–29: 647 males; 25–29: 659 females
  • 20–24: 20–24: 688 males; 20–24: 666 females
  • 15–19: 15–19: 745 males; 15–19: 661 females
  • 10–14: 10–14: 818 males; 10–14: 795 females
  • 5–9: 5–9: 797 males; 5–9: 807 females
  • 0–4: 0–4: 716 males; 0–4: 655 females

Sources

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

More for 5158, SA

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 5158, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5158/5158-sa/topic/demographics-identity