Serpentine - Jarrahdale · Sub-region (SA3)

Demographics & Identity in Serpentine - Jarrahdale

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

A massive 81% population jump since 2011 has seen Serpentine - Jarrahdale grow to 32,242 people. It is a notably young place where the typical resident is just 34, making it much younger than most similar areas. This youthfulness is driven by a very high number of children and families.

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📍 Serpentine - Jarrahdale, Sub-region (SA3)

Where Serpentine - Jarrahdale sits — Total population

32,242 ▲ +81.1%
  • 1–2: 3 areas
  • 2–2: 0 areas
  • 2–4: 0 areas
  • 4–6: 0 areas
  • 6–9: 2 areas
  • 9–15: 2 areas
  • 15–23: 1 area
  • 23–37: 0 areas
  • 37–57: 1 area
  • 57–90: 0 areas
  • 90–141: 1 area
  • 141–221: 1 area
  • 221–347: 1 area
  • 347–545: 2 areas
  • 545–854: 3 areas
  • 854–1,340: 0 areas
  • 1,340–2,101: 3 areas
  • 2,101–3,296: 1 area
  • 3,296–5,169: 2 areas
  • 5,169–8,107: 3 areas
  • 8,107–12,714: 7 areas
  • 12,714–19,940: 16 areas
  • 19,940–31,273: 30 areas
  • 31,273–49,048: 61 areas
  • 49,048–76,924: 90 areas
  • 76,924–120,643: 70 areas
  • 120,643–189,211: 46 areas
  • 189,211–296,748: 12 areas

All sub-region (sa3) areas, 2021. The marker is Serpentine - Jarrahdale — lower than 76% of areas.

Total population compared with the state and national average
Serpentine - Jarrahdale32,242
Greater Perth 2,116,647
Western Australia 2,660,026
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by 14,437 people since 2011, and the typical age of residents is now 34. This is noticeably younger than both the Western Australian and national figure of 38.

32,242 ▲ +81.1%

Lower than 76% of sub-region (sa3) areas.

  • 2011: 17,805
  • 2016: 26,873
  • 2021: 32,242

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

34 yrs ▼ -2.9%

Younger than 89% of sub-region (sa3) areas.

  • 2011: 35 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 24.9% of the population, which is well above the national figure of 18.2%. In contrast, seniors aged 65 and over are much less common here at 10.3%, well below the state average of 16.1%.

10.3% ▲ +14.3%

Lower than 90% of sub-region (sa3) areas.

  • 2011: 9.0%
  • 2016: 9.1%
  • 2021: 10.3%

Share of the population aged 65 years and over.

24.9% ▲ +6.0%

Higher than 99% of sub-region (sa3) areas.

  • 2011: 23.5%
  • 2016: 23.8%
  • 2021: 24.9%

Share of the population aged under 15 years.

Age structure

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In Serpentine - Jarrahdale, the largest group is Young adults (25–44) at 30%, followed by Children (0–14) (25%) and Older adults (45–64) (23%).

Identity & relationships

First Nations identity and marital status.

Around 14.9% of residents are in a de facto relationship, which is well above the Australian figure of 11.5%. Meanwhile, 2.9% of the population is Aboriginal and Torres Strait Islander, which is about the same as the state and national figures.

2.9% ▲ +98.4%

Higher than 52% of sub-region (sa3) areas.

  • 2011: 1.4%
  • 2016: 2.0%
  • 2021: 2.9%

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

14.9% ▲ +16.1%

Higher than 83% of sub-region (sa3) areas.

  • 2011: 12.8%
  • 2016: 15.3%
  • 2021: 14.9%

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

Marital status

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In Serpentine - Jarrahdale, Married is the majority at 51%; Never married is next at 35%.

Age & sex structure

  • 85+: 85+: 113 males; 85+: 137 females
  • 80–84: 80–84: 183 males; 80–84: 186 females
  • 75–79: 75–79: 314 males; 75–79: 267 females
  • 70–74: 70–74: 517 males; 70–74: 450 females
  • 65–69: 65–69: 563 males; 65–69: 603 females
  • 60–64: 60–64: 744 males; 60–64: 781 females
  • 55–59: 55–59: 961 males; 55–59: 921 females
  • 50–54: 50–54: 1,076 males; 50–54: 1,019 females
  • 45–49: 45–49: 991 males; 45–49: 989 females
  • 40–44: 40–44: 1,109 males; 40–44: 1,043 females
  • 35–39: 35–39: 1,296 males; 35–39: 1,327 females
  • 30–34: 30–34: 1,271 males; 30–34: 1,434 females
  • 25–29: 25–29: 1,009 males; 25–29: 1,184 females
  • 20–24: 20–24: 867 males; 20–24: 872 females
  • 15–19: 15–19: 964 males; 15–19: 1,013 females
  • 10–14: 10–14: 1,301 males; 10–14: 1,177 females
  • 5–9: 5–9: 1,419 males; 5–9: 1,348 females
  • 0–4: 0–4: 1,405 males; 0–4: 1,370 females

Sources

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

More for Serpentine - Jarrahdale

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Serpentine - Jarrahdale [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa3/50606/serpentine-jarrahdale/topic/demographics-identity