Underwood · Statistical Area 2 (SA2)

Demographics & Identity in Underwood

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

A typical resident in Underwood is 34, making the area noticeably younger than the Queensland and national averages. This youthful profile is driven by a high number of children and young adults, with the population growing by 28% since 2011 to reach 6,809 people.

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📍 Underwood, Statistical Area 2 (SA2)

Where Underwood sits — Total population

6,809 ▲ +27.8%
  • 1–1: 40 areas
  • 1–2: 0 areas
  • 2–3: 0 areas
  • 3–4: 12 areas
  • 4–6: 6 areas
  • 6–9: 9 areas
  • 9–13: 10 areas
  • 13–19: 7 areas
  • 19–27: 17 areas
  • 27–39: 6 areas
  • 39–56: 5 areas
  • 56–81: 4 areas
  • 81–116: 1 area
  • 116–168: 5 areas
  • 168–242: 3 areas
  • 242–349: 4 areas
  • 349–503: 2 areas
  • 503–725: 9 areas
  • 725–1,045: 3 areas
  • 1,045–1,506: 5 areas
  • 1,506–2,171: 31 areas
  • 2,171–3,130: 83 areas
  • 3,130–4,513: 217 areas
  • 4,513–6,507: 318 areas
  • 6,507–9,382: 402 areas
  • 9,382–13,526: 546 areas
  • 13,526–19,501: 496 areas
  • 19,501–28,116: 231 areas

All statistical area 2 (sa2) areas, 2021. The marker is Underwood — lower than 67% of areas.

Total population compared with the state and national average
Underwood6,809
4119, QLD 6,809
Queensland 5,156,138
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by 28% since 2011, adding about 1,481 people. The typical age of 34 is much lower than most areas and noticeably younger than the Australian figure of 38.

6,809 ▲ +27.8%

Lower than 67% of statistical area 2 (sa2) areas.

  • 2011: 5,328
  • 2016: 6,341
  • 2021: 6,809

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

34 yrs ▲ +6.3%

Younger than 86% of statistical area 2 (sa2) areas.

  • 2011: 32 yrs
  • 2016: 33 yrs
  • 2021: 34 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 22.8% of the population, which is well above the national figure of 18.2%. Meanwhile, seniors aged 65 and over are much less common here than in most areas, sitting at 10.1%.

10.1% ▲ +38.0%

Lower than 86% of statistical area 2 (sa2) areas.

  • 2011: 7.3%
  • 2016: 8.1%
  • 2021: 10.1%

Share of the population aged 65 years and over.

22.8% ▲ +0.9%

Higher than 88% of statistical area 2 (sa2) areas.

  • 2011: 22.6%
  • 2016: 23.2%
  • 2021: 22.8%

Share of the population aged under 15 years.

Age structure

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In Underwood, the largest group is Young adults (25–44) at 32%, followed by Children (0–14) (23%) and Older adults (45–64) (22%).

Identity & relationships

First Nations identity and marital status.

People in de facto relationships make up 7.2% of the population, which is well below the Queensland figure of 12.9%. Those identifying as Aboriginal and Torres Strait Islander are at 1.5%, a little below the national average.

1.5% ▲ +39.7%

Lower than 62% of statistical area 2 (sa2) areas.

  • 2011: 1.1%
  • 2016: 1.4%
  • 2021: 1.5%

Share of people who identify as Aboriginal and/or Torres Strait Islander.

7.2% ▼ -25.1%

Lower than 87% of statistical area 2 (sa2) areas.

  • 2011: 9.7%
  • 2016: 7.7%
  • 2021: 7.2%

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

Marital status

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In Underwood, Married is the majority at 55%; Never married is next at 32%.

Age & sex structure

  • 85+: 85+: 26 males; 85+: 15 females
  • 80–84: 80–84: 24 males; 80–84: 43 females
  • 75–79: 75–79: 72 males; 75–79: 53 females
  • 70–74: 70–74: 98 males; 70–74: 109 females
  • 65–69: 65–69: 116 males; 65–69: 132 females
  • 60–64: 60–64: 138 males; 60–64: 158 females
  • 55–59: 55–59: 167 males; 55–59: 160 females
  • 50–54: 50–54: 196 males; 50–54: 199 females
  • 45–49: 45–49: 243 males; 45–49: 232 females
  • 40–44: 40–44: 262 males; 40–44: 264 females
  • 35–39: 35–39: 311 males; 35–39: 294 females
  • 30–34: 30–34: 282 males; 30–34: 302 females
  • 25–29: 25–29: 246 males; 25–29: 224 females
  • 20–24: 20–24: 248 males; 20–24: 191 females
  • 15–19: 15–19: 217 males; 15–19: 222 females
  • 10–14: 10–14: 256 males; 10–14: 264 females
  • 5–9: 5–9: 275 males; 5–9: 280 females
  • 0–4: 0–4: 261 males; 0–4: 225 females

Sources

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

More for Underwood

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Underwood [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/311061335/underwood/topic/demographics-identity