Trinity Gardens · Suburb / Locality

Demographics & Identity in Trinity Gardens

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

Few significant shifts in identity and age have occurred in Trinity Gardens since 2011, leaving it a stable community of 1,264 people. The area is largely made up of married couples, with over half the population fitting this description.

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📍 Trinity Gardens, Suburb / Locality

Where Trinity Gardens sits — Total population

1,264 ▲ +6.9%
  • 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 Trinity Gardens — higher than 74% of areas.

Total population compared with the state and national average
Trinity Gardens1,264
5068, SA 12,648
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The typical resident in Trinity Gardens is 40 years old, which is slightly younger than the South Australian figure and older than the national average.

1,264 ▲ +6.9%

Higher than 74% of suburb / locality areas.

  • 2011: 1,182
  • 2016: 1,234
  • 2021: 1,264

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

40 yrs ▲ +2.6%

Younger than 71% of suburb / locality areas.

  • 2011: 39 yrs
  • 2016: 41 yrs
  • 2021: 40 yrs

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

Age profile

How the population splits across age groups.

Children under 15 and seniors aged 65 and over each make up about 17% of the population, which is roughly the same as the figures for Australia and South Australia.

17.2% ▲ +21.6%

Lower than 57% of suburb / locality areas.

  • 2011: 14.1%
  • 2016: 15.0%
  • 2021: 17.2%

Share of the population aged 65 years and over.

17.6% ▼ -0.6%

Higher than 53% of suburb / locality areas.

  • 2011: 17.7%
  • 2016: 16.7%
  • 2021: 17.6%

Share of the population aged under 15 years.

Age structure

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Trinity Gardens splits fairly evenly between Older adults (45–64) (27%) and Young adults (25–44) (25%), with Children (0–14) at 17%.

Identity & relationships

First Nations identity and marital status.

A small number of people, 0.3%, identify as Aboriginal or Torres Strait Islander, which is a little below the national figure. De facto relationships are also uncommon here, at 7.1%, which is well below the figures for the state and nation.

0.3% ▼ -58.3%

Lower than 68% of suburb / locality areas.

  • 2011: 0.8%
  • 2016: 0.2%
  • 2021: 0.3%

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

7.1% ▼ -21.2%

Lower than 83% of suburb / locality areas.

  • 2011: 9.0%
  • 2016: 6.0%
  • 2021: 7.1%

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

Marital status

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In Trinity Gardens, Married is the majority at 52%; Never married is next at 33%.

Age & sex structure

  • 85+: 85+: 14 males; 85+: 19 females
  • 80–84: 80–84: 9 males; 80–84: 18 females
  • 75–79: 75–79: 15 males; 75–79: 28 females
  • 70–74: 70–74: 21 males; 70–74: 18 females
  • 65–69: 65–69: 30 males; 65–69: 45 females
  • 60–64: 60–64: 33 males; 60–64: 39 females
  • 55–59: 55–59: 47 males; 55–59: 55 females
  • 50–54: 50–54: 46 males; 50–54: 47 females
  • 45–49: 45–49: 31 males; 45–49: 48 females
  • 40–44: 40–44: 42 males; 40–44: 41 females
  • 35–39: 35–39: 40 males; 35–39: 45 females
  • 30–34: 30–34: 24 males; 30–34: 44 females
  • 25–29: 25–29: 42 males; 25–29: 40 females
  • 20–24: 20–24: 41 males; 20–24: 46 females
  • 15–19: 15–19: 47 males; 15–19: 45 females
  • 10–14: 10–14: 31 males; 10–14: 50 females
  • 5–9: 5–9: 43 males; 5–9: 35 females
  • 0–4: 0–4: 33 males; 0–4: 30 females

Sources

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

More for Trinity Gardens

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Trinity Gardens [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL41472/trinity-gardens/topic/demographics-identity