Mandurah · Sub-region (SA3)

Demographics & Identity in Mandurah

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

About 48.2% of people in Mandurah are married, making this the most common relationship status in an area that has grown significantly. The population reached 107,641 people in 2021, with the typical resident now noticeably older than those in the rest of the state.

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📍 Mandurah, Sub-region (SA3)

Where Mandurah sits — Total population

107,641 ▲ +29.2%
  • 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 Mandurah — higher than 78% of areas.

Total population compared with the state and national average
Mandurah107,641
Greater Perth 2,116,647
Western Australia 2,660,026
Australia 25,422,788

Population

How many people, and the typical age.

The typical resident in Mandurah is 45, which is noticeably older than the Western Australian and national figure of 38. This age has trended upwards since 2011, while the total population grew by 29% to add about 24,347 people.

107,641 ▲ +29.2%

Higher than 78% of sub-region (sa3) areas.

  • 2011: 83,294
  • 2016: 96,736
  • 2021: 107,641

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

45 yrs ▲ +7.1%

Older than 79% of sub-region (sa3) areas.

  • 2011: 42 yrs
  • 2016: 43 yrs
  • 2021: 45 yrs

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

Age profile

How the population splits across age groups.

Seniors aged 65 and over make up 25.3% of the population, a figure well above the national average. This group has grown by 5.1 percentage points since 2011, while the proportion of children under 15 has fallen slightly to 17.5%.

25.3% ▲ +25.0%

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

  • 2011: 20.3%
  • 2016: 22.5%
  • 2021: 25.3%

Share of the population aged 65 years and over.

17.5% ▼ -7.7%

Lower than 54% of sub-region (sa3) areas.

  • 2011: 19.0%
  • 2016: 18.2%
  • 2021: 17.5%

Share of the population aged under 15 years.

Age structure

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Mandurah splits fairly evenly between Older adults (45–64) (26%) and Seniors (65+) (25%), with Young adults (25–44) at 21%.

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 2.9% of the population, which is about the same as the state and national figures. Those in de facto relationships account for 12.2% of residents, up 1.0 percentage point from 2011.

12.2% ▲ +8.9%

Lower than 51% of sub-region (sa3) areas.

  • 2011: 11.2%
  • 2016: 11.8%
  • 2021: 12.2%

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

Marital status

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In Mandurah, the largest group is Married at 48%, followed by Never married (30%) and Divorced (11%).

Age & sex structure

  • 85+: 85+: 1,305 males; 85+: 1,799 females
  • 80–84: 80–84: 1,836 males; 80–84: 1,951 females
  • 75–79: 75–79: 2,665 males; 75–79: 2,793 females
  • 70–74: 70–74: 3,666 males; 70–74: 3,793 females
  • 65–69: 65–69: 3,500 males; 65–69: 3,940 females
  • 60–64: 60–64: 3,332 males; 60–64: 3,875 females
  • 55–59: 55–59: 3,428 males; 55–59: 3,690 females
  • 50–54: 50–54: 3,225 males; 50–54: 3,521 females
  • 45–49: 45–49: 3,089 males; 45–49: 3,308 females
  • 40–44: 40–44: 2,715 males; 40–44: 3,019 females
  • 35–39: 35–39: 2,935 males; 35–39: 3,228 females
  • 30–34: 30–34: 2,677 males; 30–34: 3,020 females
  • 25–29: 25–29: 2,493 males; 25–29: 2,692 females
  • 20–24: 20–24: 2,623 males; 20–24: 2,686 females
  • 15–19: 15–19: 3,015 males; 15–19: 2,971 females
  • 10–14: 10–14: 3,449 males; 10–14: 3,387 females
  • 5–9: 5–9: 3,153 males; 5–9: 3,174 females
  • 0–4: 0–4: 2,866 males; 0–4: 2,800 females

Sources

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

More for Mandurah

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Mandurah [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa3/50201/mandurah/topic/demographics-identity