5045, SA · Postcode

Demographics & Identity in 5045, SA

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

A growing population of 16,071 people in postcode 5045 has aged noticeably since 2011. The area is now far older than the national average, with a typical resident aged 47. This shift is most visible in the sharp rise of residents aged 65 and over.

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📍 5045, SA, Postcode

Where 5045, SA sits — Total population

16,071 ▲ +4.0%
  • 1–2: 1 area
  • 2–2: 0 areas
  • 2–4: 0 areas
  • 4–5: 2 areas
  • 5–8: 3 areas
  • 8–12: 2 areas
  • 12–19: 2 areas
  • 19–29: 12 areas
  • 29–44: 19 areas
  • 44–67: 35 areas
  • 67–102: 30 areas
  • 102–155: 70 areas
  • 155–237: 97 areas
  • 237–360: 129 areas
  • 360–549: 158 areas
  • 549–836: 168 areas
  • 836–1,273: 181 areas
  • 1,273–1,938: 179 areas
  • 1,938–2,951: 157 areas
  • 2,951–4,493: 179 areas
  • 4,493–6,842: 176 areas
  • 6,842–10,418: 210 areas
  • 10,418–15,865: 268 areas
  • 15,865–24,158: 254 areas
  • 24,158–36,786: 182 areas
  • 36,786–56,016: 93 areas
  • 56,016–85,299: 28 areas
  • 85,299–129,888: 8 areas

All postcode areas, 2021. The marker is 5045, SA — higher than 78% of areas.

Total population compared with the state and national average
5045, SA16,071
Holdfast Bay 37,543
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The total population grew by 4.0% since 2011, adding about 620 people. The typical resident is now 47, which is far older than the Australian figure of 38.

16,071 ▲ +4.0%

Higher than 78% of postcode areas.

  • 2011: 15,451
  • 2016: 15,589
  • 2021: 16,071

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

47 yrs ▲ +9.3%

Older than 71% of postcode areas.

  • 2011: 43 yrs
  • 2016: 44 yrs
  • 2021: 47 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 26.1% of the area, a figure that rose 7.3 points since 2011 and is well above the national average. Conversely, children under 15 represent only 12.1%, which is well below the 18.2% seen across Australia.

26.1% ▲ +38.7%

Higher than 79% of postcode areas.

  • 2011: 18.8%
  • 2016: 21.4%
  • 2021: 26.1%

Share of the population aged 65 years and over.

12.1% ▲ +2.8%

Lower than 88% of postcode areas.

  • 2011: 11.7%
  • 2016: 12.6%
  • 2021: 12.1%

Share of the population aged under 15 years.

Age structure

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5045, SA splits fairly evenly between Older adults (45–64) (26%) and Seniors (65+) (26%), with Young adults (25–44) at 26%.

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 0.8% of the population, which is a little below the national figure. About 45.6% of residents are married, while those in de facto relationships rose slightly to 12.1% since 2011.

0.8% ▲ +60.3%

Lower than 78% of postcode areas.

  • 2011: 0.5%
  • 2016: 0.8%
  • 2021: 0.8%

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

12.1% ▲ +15.5%

Lower than 54% of postcode areas.

  • 2011: 10.4%
  • 2016: 11.6%
  • 2021: 12.1%

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

Marital status

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In 5045, SA, the largest group is Married at 46%, followed by Never married (34%) and Divorced (12%).

Age & sex structure

  • 85+: 85+: 197 males; 85+: 386 females
  • 80–84: 80–84: 220 males; 80–84: 281 females
  • 75–79: 75–79: 371 males; 75–79: 399 females
  • 70–74: 70–74: 529 males; 70–74: 574 females
  • 65–69: 65–69: 596 males; 65–69: 641 females
  • 60–64: 60–64: 565 males; 60–64: 660 females
  • 55–59: 55–59: 514 males; 55–59: 574 females
  • 50–54: 50–54: 500 males; 50–54: 491 females
  • 45–49: 45–49: 456 males; 45–49: 497 females
  • 40–44: 40–44: 481 males; 40–44: 508 females
  • 35–39: 35–39: 539 males; 35–39: 539 females
  • 30–34: 30–34: 556 males; 30–34: 553 females
  • 25–29: 25–29: 478 males; 25–29: 513 females
  • 20–24: 20–24: 404 males; 20–24: 441 females
  • 15–19: 15–19: 334 males; 15–19: 347 females
  • 10–14: 10–14: 341 males; 10–14: 306 females
  • 5–9: 5–9: 313 males; 5–9: 346 females
  • 0–4: 0–4: 307 males; 0–4: 313 females

Sources

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

More for 5045, SA

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 5045, SA [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA5045/5045-sa/topic/demographics-identity