5604, SA · Postcode

Demographics & Identity in 5604, SA

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

A typical resident in postcode 5604 is 56 years old, making this area far older than both the state and national figures. While the population is small, it has grown by 60% since 2011. This shift comes alongside a notably older age profile compared to most similar areas.

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📍 5604, SA, Postcode

Where 5604, SA sits — Total population

218 ▲ +60.3%
  • 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 5604, SA — lower than 91% of areas.

Total population compared with the state and national average
5604, SA218
Tumby Bay 2,817
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by 60% since 2011, adding about 82 people to reach a total of 218. Despite this growth, it remains smaller than about 90% of similar areas.

218 ▲ +60.3%

Lower than 91% of postcode areas.

  • 2011: 136
  • 2016: 194
  • 2021: 218

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

56 yrs ▼ -6.7%

Older than 94% of postcode areas.

  • 2011: 60 yrs
  • 2016: 58 yrs
  • 2021: 56 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 28% of the population, which is far above the national figure. This helps explain why children under 15 are among the lowest at this level, at just 7.8%.

28.0% ▼ -24.8%

Higher than 85% of postcode areas.

  • 2011: 37.2%
  • 2016: 32.0%
  • 2021: 28.0%

Share of the population aged 65 years and over.

7.8% ▼ -17.8%

Lower than 96% of postcode areas.

  • 2011: 9.5%
  • 2016: 8.8%
  • 2021: 7.8%

Share of the population aged under 15 years.

Age structure

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In 5604, SA, the largest group is Older adults (45–64) at 43%, followed by Seniors (65+) (30%) and Young adults (25–44) (14%).

Identity & relationships

First Nations identity and marital status.

No one here identifies as Aboriginal or Torres Strait Islander, which is well below the national figure. Most residents are married (58.1%), though the share of people in de facto relationships rose to 11.6% since 2011.

11.6% ▲ +172.9%

Lower than 60% of postcode areas.

  • 2011: 4.3%
  • 2016: 3.1%
  • 2021: 11.6%

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

Marital status

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In 5604, SA, Married is the majority at 58%; Never married is next at 18%.

Age & sex structure

  • 85+: 85+: 0 males; 85+: 5 females
  • 80–84: 80–84: 3 males; 80–84: 3 females
  • 75–79: 75–79: 9 males; 75–79: 6 females
  • 70–74: 70–74: 9 males; 70–74: 0 females
  • 65–69: 65–69: 17 males; 65–69: 17 females
  • 60–64: 60–64: 16 males; 60–64: 13 females
  • 55–59: 55–59: 14 males; 55–59: 18 females
  • 50–54: 50–54: 16 males; 50–54: 8 females
  • 45–49: 45–49: 5 males; 45–49: 6 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: 5 males; 30–34: 5 females
  • 25–29: 25–29: 9 males; 25–29: 3 females
  • 20–24: 20–24: 0 males; 20–24: 4 females
  • 15–19: 15–19: 0 males; 15–19: 5 females
  • 10–14: 10–14: 5 males; 10–14: 7 females
  • 5–9: 5–9: 4 males; 5–9: 0 females
  • 0–4: 0–4: 3 males; 0–4: 7 females

Sources

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

More for 5604, SA

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 5604, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5604/5604-sa/topic/demographics-identity