St Clair · Suburb / Locality

Demographics & Identity in St Clair

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

A typical resident in St Clair is just 32 years old, making it far younger than the South Australian average. This youthful profile is reflected in a population of 2,634 people, with a very small number of seniors living in the area.

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📍 St Clair, Suburb / Locality

Where St Clair sits — Total population

2,634
  • 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 St Clair — higher than 82% of areas.

Total population compared with the state and national average
St Clair2,634
5011, SA 13,986
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The typical age of 32 is among the lowest for similar areas and noticeably younger than the national figure of 38.

2,634

Higher than 82% of suburb / locality areas.

  • 2016: 1,712
  • 2021: 2,634

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

32 yrs

Younger than 91% of suburb / locality areas.

  • 2016: 30 yrs
  • 2021: 32 yrs

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

Age profile

How the population splits across age groups.

Young adults aged 25 to 44 make up 44.7% of the population. This helps explain why the proportion of people aged 65 and over is far below the state figure of 20%.

6.3%

Lower than 90% of suburb / locality areas.

  • 2016: 3.9%
  • 2021: 6.3%

Share of the population aged 65 years and over.

15.8%

Lower than 59% of suburb / locality areas.

  • 2016: 15.5%
  • 2021: 15.8%

Share of the population aged under 15 years.

Age structure

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In St Clair, the largest group is Young adults (25–44) at 45%, followed by Older adults (45–64) (19%) and Children (0–14) (16%).

Identity & relationships

First Nations identity and marital status.

Almost half of residents have never married, and those in de facto relationships make up 14.9% of the population, which is well above the national figure.

14.9%

Higher than 70% of suburb / locality areas.

  • 2016: 16.2%
  • 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 St Clair, the largest group is Never married at 46%, followed by Married (41%) and Divorced (7%).

Age & sex structure

  • 85+: 85+: 4 males; 85+: 4 females
  • 80–84: 80–84: 3 males; 80–84: 0 females
  • 75–79: 75–79: 19 males; 75–79: 14 females
  • 70–74: 70–74: 22 males; 70–74: 26 females
  • 65–69: 65–69: 34 males; 65–69: 36 females
  • 60–64: 60–64: 47 males; 60–64: 56 females
  • 55–59: 55–59: 51 males; 55–59: 60 females
  • 50–54: 50–54: 64 males; 50–54: 76 females
  • 45–49: 45–49: 82 males; 45–49: 79 females
  • 40–44: 40–44: 107 males; 40–44: 89 females
  • 35–39: 35–39: 156 males; 35–39: 142 females
  • 30–34: 30–34: 161 males; 30–34: 161 females
  • 25–29: 25–29: 180 males; 25–29: 179 females
  • 20–24: 20–24: 127 males; 20–24: 115 females
  • 15–19: 15–19: 48 males; 15–19: 58 females
  • 10–14: 10–14: 45 males; 10–14: 52 females
  • 5–9: 5–9: 63 males; 5–9: 67 females
  • 0–4: 0–4: 104 males; 0–4: 96 females

Sources

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

More for St Clair

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in St Clair [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL41367/st-clair/topic/demographics-identity