5091, SA · Postcode

Demographics & Identity in 5091, SA

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

A significant 22.1% of residents are seniors, making postcode 5091 well above the national figure for older populations. This area has grown by 7.2% since 2011 and is now home to 7,872 people. It is a mature community where the typical resident is 42, which is noticeably older than the Australian average.

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📍 5091, SA, Postcode

Where 5091, SA sits — Total population

7,872 ▲ +7.2%
  • 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 5091, SA — higher than 62% of areas.

Total population compared with the state and national average
5091, SA7,872
Tea Tree Gully 101,174
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by 529 people since 2011 to reach 7,872. Residents here are generally older than those across the country, with the typical age rising slightly to 42 years.

7,872 ▲ +7.2%

Higher than 62% of postcode areas.

  • 2011: 7,343
  • 2016: 7,505
  • 2021: 7,872

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

42 yrs ▲ +2.4%

Younger than 52% of postcode areas.

  • 2011: 41 yrs
  • 2016: 42 yrs
  • 2021: 42 yrs

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

Age profile

How the population splits across age groups.

Seniors make up 22.1% of the area, a figure that has risen by 4.9 percentage points since 2011 and is much higher than the national average. Children under 15 account for 17.6% of the population, which is about the same as the state and national figures.

22.1% ▲ +28.6%

Higher than 64% of postcode areas.

  • 2011: 17.2%
  • 2016: 20.7%
  • 2021: 22.1%

Share of the population aged 65 years and over.

17.6% ▼ -1.6%

Higher than 53% of postcode areas.

  • 2011: 17.9%
  • 2016: 16.9%
  • 2021: 17.6%

Share of the population aged under 15 years.

Age structure

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5091, SA splits fairly evenly between Older adults (45–64) (25%) and Young adults (25–44) (24%), with Seniors (65+) at 22%.

Identity & relationships

First Nations identity and marital status.

Indigenous people make up 1.2% of the population, which is a little below the state and national levels. Most residents are married at 52.8%, while those in de facto relationships account for 11.2%.

11.2% ▲ +24.5%

Lower than 65% of postcode areas.

  • 2011: 9.0%
  • 2016: 10.1%
  • 2021: 11.2%

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

Marital status

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In 5091, SA, Married is the majority at 53%; Never married is next at 32%.

Age & sex structure

  • 85+: 85+: 61 males; 85+: 81 females
  • 80–84: 80–84: 122 males; 80–84: 121 females
  • 75–79: 75–79: 208 males; 75–79: 219 females
  • 70–74: 70–74: 222 males; 70–74: 281 females
  • 65–69: 65–69: 182 males; 65–69: 234 females
  • 60–64: 60–64: 215 males; 60–64: 192 females
  • 55–59: 55–59: 247 males; 55–59: 240 females
  • 50–54: 50–54: 263 males; 50–54: 280 females
  • 45–49: 45–49: 252 males; 45–49: 256 females
  • 40–44: 40–44: 259 males; 40–44: 260 females
  • 35–39: 35–39: 244 males; 35–39: 261 females
  • 30–34: 30–34: 218 males; 30–34: 236 females
  • 25–29: 25–29: 233 males; 25–29: 199 females
  • 20–24: 20–24: 223 males; 20–24: 205 females
  • 15–19: 15–19: 230 males; 15–19: 237 females
  • 10–14: 10–14: 254 males; 10–14: 231 females
  • 5–9: 5–9: 249 males; 5–9: 221 females
  • 0–4: 0–4: 231 males; 0–4: 196 females

Sources

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

More for 5091, SA

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 5091, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5091/5091-sa/topic/demographics-identity