Aldinga · Statistical Area 2 (SA2)

Demographics & Identity in Aldinga

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

A growing population of 15,923 people defines Aldinga, where families and older adults make up the largest groups. The area has aged noticeably over the last decade, with the typical resident now 40 years old.

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📍 Aldinga, Statistical Area 2 (SA2)

Where Aldinga sits — Total population

15,923 ▲ +12.5%
  • 1–1: 40 areas
  • 1–2: 0 areas
  • 2–3: 0 areas
  • 3–4: 12 areas
  • 4–6: 6 areas
  • 6–9: 9 areas
  • 9–13: 10 areas
  • 13–19: 7 areas
  • 19–27: 17 areas
  • 27–39: 6 areas
  • 39–56: 5 areas
  • 56–81: 4 areas
  • 81–116: 1 area
  • 116–168: 5 areas
  • 168–242: 3 areas
  • 242–349: 4 areas
  • 349–503: 2 areas
  • 503–725: 9 areas
  • 725–1,045: 3 areas
  • 1,045–1,506: 5 areas
  • 1,506–2,171: 31 areas
  • 2,171–3,130: 83 areas
  • 3,130–4,513: 217 areas
  • 4,513–6,507: 318 areas
  • 6,507–9,382: 402 areas
  • 9,382–13,526: 546 areas
  • 13,526–19,501: 496 areas
  • 19,501–28,116: 231 areas

All statistical area 2 (sa2) areas, 2021. The marker is Aldinga — higher than 79% of areas.

Total population compared with the state and national average
Aldinga15,923
5173, SA 13,213
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by 13% since 2011, adding about 1,770 people. This makes Aldinga larger than about 80% of similar areas.

15,923 ▲ +12.5%

Higher than 79% of statistical area 2 (sa2) areas.

  • 2011: 14,153
  • 2016: 15,379
  • 2021: 15,923

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

40 yrs ▲ +17.6%

Older than 52% of statistical area 2 (sa2) areas.

  • 2011: 34 yrs
  • 2016: 37 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 make up 20% of the population, which is a little above the national figure. Meanwhile, the proportion of people aged 65 and over rose 7.5 percentage points since 2011 to reach 18.6%.

18.6% ▲ +68.2%

Higher than 58% of statistical area 2 (sa2) areas.

  • 2011: 11.1%
  • 2016: 14.7%
  • 2021: 18.6%

Share of the population aged 65 years and over.

20.0% ▼ -15.1%

Higher than 72% of statistical area 2 (sa2) areas.

  • 2011: 23.5%
  • 2016: 22.6%
  • 2021: 20.0%

Share of the population aged under 15 years.

Age structure

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Aldinga splits fairly evenly between Older adults (45–64) (26%) and Young adults (25–44) (24%), with Children (0–14) at 20%.

Identity & relationships

First Nations identity and marital status.

De facto relationships are much more common here than in most areas, at 15.5%, which is well above the state and national figures. About 2.3% of residents are Aboriginal and Torres Strait Islander, a figure that has barely changed since 2011.

2.3% ▲ +41.3%

Higher than 52% of statistical area 2 (sa2) areas.

  • 2011: 1.6%
  • 2016: 1.7%
  • 2021: 2.3%

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

15.5% ▼ -7.1%

Higher than 85% of statistical area 2 (sa2) areas.

  • 2011: 16.7%
  • 2016: 15.2%
  • 2021: 15.5%

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

Marital status

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Aldinga splits fairly evenly between Married (42%) and Never married (37%), with Divorced at 13%.

Age & sex structure

  • 85+: 85+: 101 males; 85+: 161 females
  • 80–84: 80–84: 168 males; 80–84: 160 females
  • 75–79: 75–79: 271 males; 75–79: 293 females
  • 70–74: 70–74: 377 males; 70–74: 460 females
  • 65–69: 65–69: 457 males; 65–69: 504 females
  • 60–64: 60–64: 442 males; 60–64: 524 females
  • 55–59: 55–59: 520 males; 55–59: 556 females
  • 50–54: 50–54: 553 males; 50–54: 533 females
  • 45–49: 45–49: 480 males; 45–49: 555 females
  • 40–44: 40–44: 411 males; 40–44: 563 females
  • 35–39: 35–39: 519 males; 35–39: 590 females
  • 30–34: 30–34: 453 males; 30–34: 487 females
  • 25–29: 25–29: 396 males; 25–29: 419 females
  • 20–24: 20–24: 438 males; 20–24: 405 females
  • 15–19: 15–19: 498 males; 15–19: 454 females
  • 10–14: 10–14: 586 males; 10–14: 549 females
  • 5–9: 5–9: 580 males; 5–9: 598 females
  • 0–4: 0–4: 436 males; 0–4: 434 females

Sources

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

More for Aldinga

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Aldinga [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/403041072/aldinga/topic/demographics-identity