4120, QLD · Postcode

Demographics & Identity in 4120, QLD

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

A typical resident in postcode 4120 is just 33 years old, making this one of the youngest areas at this level. This youthfulness is reflected in the population structure, where young adults aged 25 to 44 make up the largest group at 42.3%.

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📍 4120, QLD, Postcode

Where 4120, QLD sits — Total population

10,387 ▲ +21.3%
  • 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 4120, QLD — higher than 68% of areas.

Total population compared with the state and national average
4120, QLD10,387
Brisbane 1,242,825
Queensland 5,156,138
Australia 25,422,788

Population

How many people, and the typical age.

The population has grown by 21% since 2011, adding about 1,822 people to reach a total of 10,387. This total is larger than about 68% of similar areas.

10,387 ▲ +21.3%

Higher than 68% of postcode areas.

  • 2011: 8,565
  • 2016: 8,936
  • 2021: 10,387

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

33 yrs ▲ +3.1%

Younger than 93% of postcode areas.

  • 2011: 32 yrs
  • 2016: 32 yrs
  • 2021: 33 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 12.4% of the population, which is well below the national figure of 18.2%. Seniors aged 65 and over are also well below the national average at 10.2%.

10.2% ▼ -3.3%

Lower than 89% of postcode areas.

  • 2011: 10.6%
  • 2016: 9.7%
  • 2021: 10.2%

Share of the population aged 65 years and over.

12.4% ▼ -4.7%

Lower than 87% of postcode areas.

  • 2011: 13.0%
  • 2016: 13.3%
  • 2021: 12.4%

Share of the population aged under 15 years.

Age structure

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In 4120, QLD, the largest group is Young adults (25–44) at 42%, followed by Older adults (45–64) (21%) and Youth (15–24) (14%).

Identity & relationships

First Nations identity and marital status.

De facto relationships are much more common here than in most areas, at 17.8%, which is well above the 11.5% seen across Australia. About 1.7% of residents are Aboriginal or Torres Strait Islander, a figure a little below the state average.

17.8% ▲ +26.3%

Higher than 88% of postcode areas.

  • 2011: 14.1%
  • 2016: 15.4%
  • 2021: 17.8%

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

Marital status

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In 4120, QLD, Never married is the majority at 53%; Married is next at 32%.

Age & sex structure

  • 85+: 85+: 44 males; 85+: 79 females
  • 80–84: 80–84: 51 males; 80–84: 55 females
  • 75–79: 75–79: 71 males; 75–79: 117 females
  • 70–74: 70–74: 156 males; 70–74: 134 females
  • 65–69: 65–69: 171 males; 65–69: 178 females
  • 60–64: 60–64: 227 males; 60–64: 250 females
  • 55–59: 55–59: 250 males; 55–59: 248 females
  • 50–54: 50–54: 307 males; 50–54: 287 females
  • 45–49: 45–49: 289 males; 45–49: 296 females
  • 40–44: 40–44: 339 males; 40–44: 334 females
  • 35–39: 35–39: 555 males; 35–39: 479 females
  • 30–34: 30–34: 590 males; 30–34: 615 females
  • 25–29: 25–29: 742 males; 25–29: 740 females
  • 20–24: 20–24: 515 males; 20–24: 603 females
  • 15–19: 15–19: 171 males; 15–19: 206 females
  • 10–14: 10–14: 193 males; 10–14: 149 females
  • 5–9: 5–9: 226 males; 5–9: 217 females
  • 0–4: 0–4: 270 males; 0–4: 228 females

Sources

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

More for 4120, QLD

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 4120, QLD [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA4120/4120-qld/topic/demographics-identity