Unley · Sub-region (SA3)

Demographics & Identity in Unley

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

Older residents are more common in Unley than they used to be, with the typical person now 43. The area has grown by about 1,800 people since 2011, reflecting a population that is now noticeably older than the national average.

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📍 Unley, Sub-region (SA3)

Where Unley sits — Total population

38,641 ▲ +4.9%
  • 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 Unley — lower than 71% of areas.

Total population compared with the state and national average
Unley38,641
Greater Adelaide 1,387,290
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The typical resident is 43, which is 5 years older than the national figure and 4 years older than in 2011. The total population grew 4.9% to reach 38,641 people.

38,641 ▲ +4.9%

Lower than 71% of sub-region (sa3) areas.

  • 2011: 36,840
  • 2016: 37,721
  • 2021: 38,641

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

43 yrs ▲ +10.3%

Older than 71% of sub-region (sa3) areas.

  • 2011: 39 yrs
  • 2016: 41 yrs
  • 2021: 43 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 22.2% of the area, a figure well above the national average that has risen by 5.9 points since 2011. Meanwhile, children under 15 account for 15.5%, which is much lower than most areas.

22.2% ▲ +35.9%

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

  • 2011: 16.3%
  • 2016: 19.1%
  • 2021: 22.2%

Share of the population aged 65 years and over.

15.5% ▼ -3.6%

Lower than 80% of sub-region (sa3) areas.

  • 2011: 16.1%
  • 2016: 15.9%
  • 2021: 15.5%

Share of the population aged under 15 years.

Age structure

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Unley splits fairly evenly between Young adults (25–44) (25%) and Older adults (45–64) (25%), with Seniors (65+) at 22%.

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 0.5% of the population, which is among the lowest for similar areas. Most residents are married (46.9%), while those in de facto relationships (10.7%) are much fewer than in most other areas.

10.7% ▲ +13.1%

Lower than 74% of sub-region (sa3) areas.

  • 2011: 9.5%
  • 2016: 10.2%
  • 2021: 10.7%

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

Marital status

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In Unley, the largest group is Married at 47%, followed by Never married (36%) and Divorced (9%).

Age & sex structure

  • 85+: 85+: 530 males; 85+: 1,041 females
  • 80–84: 80–84: 440 males; 80–84: 670 females
  • 75–79: 75–79: 678 males; 75–79: 811 females
  • 70–74: 70–74: 981 males; 70–74: 1,160 females
  • 65–69: 65–69: 1,038 males; 65–69: 1,217 females
  • 60–64: 60–64: 1,078 males; 60–64: 1,276 females
  • 55–59: 55–59: 1,109 males; 55–59: 1,218 females
  • 50–54: 50–54: 1,238 males; 50–54: 1,293 females
  • 45–49: 45–49: 1,220 males; 45–49: 1,334 females
  • 40–44: 40–44: 1,217 males; 40–44: 1,342 females
  • 35–39: 35–39: 1,150 males; 35–39: 1,329 females
  • 30–34: 30–34: 1,138 males; 30–34: 1,214 females
  • 25–29: 25–29: 1,205 males; 25–29: 1,230 females
  • 20–24: 20–24: 1,155 males; 20–24: 1,236 females
  • 15–19: 15–19: 1,014 males; 15–19: 1,078 females
  • 10–14: 10–14: 1,136 males; 10–14: 1,126 females
  • 5–9: 5–9: 1,083 males; 5–9: 973 females
  • 0–4: 0–4: 863 males; 0–4: 818 females

Sources

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

More for Unley

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Unley [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa3/40107/unley/topic/demographics-identity