Perth - North West · Region (SA4)

Demographics & Identity in Perth - North West

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

Nearly 94,000 extra people have moved into Perth - North West since 2011, driving a 20% population increase. The area remains a large hub where the typical resident is 38 years old, matching both the state and national figures. This growth has occurred alongside a slight rise in the number of older residents.

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📍 Perth - North West, Region (SA4)

Where Perth - North West sits — Total population

577,297 ▲ +19.5%
  • 1–2: 3 areas
  • 2–3: 0 areas
  • 3–4: 0 areas
  • 4–7: 0 areas
  • 7–11: 1 area
  • 11–19: 1 area
  • 19–30: 1 area
  • 30–50: 1 area
  • 50–81: 0 areas
  • 81–132: 1 area
  • 132–214: 1 area
  • 214–349: 0 areas
  • 349–569: 1 area
  • 569–927: 1 area
  • 927–1,511: 1 area
  • 1,511–2,461: 0 areas
  • 2,461–4,010: 2 areas
  • 4,010–6,532: 1 area
  • 6,532–10,641: 2 areas
  • 10,641–17,336: 2 areas
  • 17,336–28,242: 0 areas
  • 28,242–46,009: 1 area
  • 46,009–74,953: 0 areas
  • 74,953–122,107: 9 areas
  • 122,107–198,924: 21 areas
  • 198,924–324,066: 28 areas
  • 324,066–527,936: 21 areas
  • 527,936–860,060: 8 areas

All region (sa4) areas, 2021. The marker is Perth - North West — higher than 91% of areas.

Total population compared with the state and national average
Perth - North West577,297
Greater Perth 2,116,647
Western Australia 2,660,026
Australia 25,422,788

Population

How many people, and the typical age.

The total population reached 577,297 people in 2021, making it one of the largest areas at this level. While the typical age is now 38, this is 2 years older than it was in 2011.

577,297 ▲ +19.5%

Higher than 91% of region (sa4) areas.

  • 2011: 482,955
  • 2016: 535,114
  • 2021: 577,297

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

38 yrs ▲ +5.6%

Younger than 64% of region (sa4) areas.

  • 2011: 36 yrs
  • 2016: 36 yrs
  • 2021: 38 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 19.3% of the population, which is higher than most areas. Meanwhile, the proportion of people aged 65 and over is a little below the national figure at 15.6%, though this group rose by 3.8 percentage points since 2011.

15.6% ▲ +32.7%

Lower than 59% of region (sa4) areas.

  • 2011: 11.7%
  • 2016: 13.3%
  • 2021: 15.6%

Share of the population aged 65 years and over.

19.3% ▼ -4.0%

Higher than 73% of region (sa4) areas.

  • 2011: 20.1%
  • 2016: 19.7%
  • 2021: 19.3%

Share of the population aged under 15 years.

Age structure

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Perth - North West splits fairly evenly between Young adults (25–44) (28%) and Older adults (45–64) (25%), with Children (0–14) at 19%.

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 1.4% of the population, which is much lower than in most areas. Regarding relationships, 49.2% of residents are married, while those in de facto relationships stand at 11.1%, slightly below the state figure.

1.4% ▲ +20.5%

Lower than 75% of region (sa4) areas.

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

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

11.1% ▲ +15.7%

Lower than 74% of region (sa4) areas.

  • 2011: 9.6%
  • 2016: 10.6%
  • 2021: 11.1%

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

Marital status

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In Perth - North West, the largest group is Married at 49%, followed by Never married (35%) and Divorced (9%).

Age & sex structure

  • 85+: 85+: 4,163 males; 85+: 6,767 females
  • 80–84: 80–84: 4,931 males; 80–84: 6,382 females
  • 75–79: 75–79: 7,642 males; 75–79: 8,714 females
  • 70–74: 70–74: 11,405 males; 70–74: 12,669 females
  • 65–69: 65–69: 12,817 males; 65–69: 14,501 females
  • 60–64: 60–64: 14,976 males; 60–64: 16,261 females
  • 55–59: 55–59: 16,828 males; 55–59: 17,719 females
  • 50–54: 50–54: 18,802 males; 50–54: 19,436 females
  • 45–49: 45–49: 19,315 males; 45–49: 19,950 females
  • 40–44: 40–44: 19,235 males; 40–44: 20,224 females
  • 35–39: 35–39: 21,854 males; 35–39: 22,810 females
  • 30–34: 30–34: 20,408 males; 30–34: 22,219 females
  • 25–29: 25–29: 18,015 males; 25–29: 18,760 females
  • 20–24: 20–24: 17,578 males; 20–24: 16,927 females
  • 15–19: 15–19: 17,773 males; 15–19: 16,665 females
  • 10–14: 10–14: 19,396 males; 10–14: 18,307 females
  • 5–9: 5–9: 19,591 males; 5–9: 18,469 females
  • 0–4: 0–4: 18,341 males; 0–4: 17,456 females

Sources

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

More for Perth - North West

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Perth - North West [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa4/505/perth-north-west/topic/demographics-identity