Mount Cotton · Suburb / Locality

Demographics & Identity in Mount Cotton

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

A noticeably younger population now defines Mount Cotton, where the typical resident is just 34. This shift is most evident in the high number of families with children and a very small proportion of seniors compared to the rest of the country.

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📍 Mount Cotton, Suburb / Locality

Where Mount Cotton sits — Total population

7,302 ▲ +52.0%
  • 1–1: 689 areas
  • 1–2: 0 areas
  • 2–3: 119 areas
  • 3–5: 108 areas
  • 5–7: 243 areas
  • 7–11: 241 areas
  • 11–16: 514 areas
  • 16–24: 579 areas
  • 24–36: 898 areas
  • 36–53: 1059 areas
  • 53–79: 1168 areas
  • 79–117: 1203 areas
  • 117–174: 1171 areas
  • 174–258: 1010 areas
  • 258–384: 856 areas
  • 384–571: 670 areas
  • 571–850: 616 areas
  • 850–1,263: 567 areas
  • 1,263–1,879: 520 areas
  • 1,879–2,794: 590 areas
  • 2,794–4,154: 679 areas
  • 4,154–6,177: 585 areas
  • 6,177–9,186: 528 areas
  • 9,186–13,659: 405 areas
  • 13,659–20,311: 195 areas
  • 20,311–30,202: 96 areas
  • 30,202–44,910: 33 areas
  • 44,910–66,781: 10 areas

All suburb / locality areas, 2021. The marker is Mount Cotton — higher than 87% of areas.

Total population compared with the state and national average
Mount Cotton7,302
4165, QLD 39,491
Queensland 5,156,138
Australia 25,422,788

Population

How many people, and the typical age.

With 7,302 residents, this is one of the largest areas of its kind. The typical person here is 34, which is noticeably younger than the national figure of 38.

7,302 ▲ +52.0%

Higher than 87% of suburb / locality areas.

  • 2011: 4,804
  • 2016: 6,835
  • 2021: 7,302

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

34 yrs ▲ +6.3%

Younger than 87% of suburb / locality areas.

  • 2011: 32 yrs
  • 2016: 32 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 25.8% of the population, well above the national figure of 18.2%. This helps explain why the area is so young, while seniors aged 65 and over are much lower than most areas at only 7.4%.

7.4% ▲ +53.4%

Lower than 89% of suburb / locality areas.

  • 2011: 4.8%
  • 2016: 5.7%
  • 2021: 7.4%

Share of the population aged 65 years and over.

25.8% ▼ -5.7%

Higher than 89% of suburb / locality areas.

  • 2011: 27.4%
  • 2016: 26.9%
  • 2021: 25.8%

Share of the population aged under 15 years.

Age structure

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In Mount Cotton, the largest group is Young adults (25–44) at 31%, followed by Children (0–14) (26%) and Older adults (45–64) (25%).

Identity & relationships

First Nations identity and marital status.

Most people are married at 59.2%, while 30.2% have never married. About 2.2% of the population are Aboriginal or Torres Strait Islander, which is about the same as the Australian figure.

12.9% ▲ +1.0%

Higher than 56% of suburb / locality areas.

  • 2011: 12.8%
  • 2016: 13.6%
  • 2021: 12.9%

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

Marital status

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In Mount Cotton, Married is the majority at 59%; Never married is next at 30%.

Age & sex structure

  • 85+: 85+: 17 males; 85+: 19 females
  • 80–84: 80–84: 22 males; 80–84: 20 females
  • 75–79: 75–79: 53 males; 75–79: 40 females
  • 70–74: 70–74: 87 males; 70–74: 84 females
  • 65–69: 65–69: 107 males; 65–69: 104 females
  • 60–64: 60–64: 154 males; 60–64: 153 females
  • 55–59: 55–59: 194 males; 55–59: 200 females
  • 50–54: 50–54: 258 males; 50–54: 239 females
  • 45–49: 45–49: 282 males; 45–49: 301 females
  • 40–44: 40–44: 334 males; 40–44: 308 females
  • 35–39: 35–39: 297 males; 35–39: 365 females
  • 30–34: 30–34: 270 males; 30–34: 282 females
  • 25–29: 25–29: 198 males; 25–29: 204 females
  • 20–24: 20–24: 162 males; 20–24: 168 females
  • 15–19: 15–19: 246 males; 15–19: 235 females
  • 10–14: 10–14: 316 males; 10–14: 298 females
  • 5–9: 5–9: 338 males; 5–9: 333 females
  • 0–4: 0–4: 306 males; 0–4: 302 females

Sources

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

More for Mount Cotton

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Mount Cotton [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL31952/mount-cotton/topic/demographics-identity