Port Augusta · Urban Centre

Demographics & Identity in Port Augusta

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

A far higher share of residents identify as Aboriginal and Torres Strait Islander in Port Augusta than in most other areas, reaching 21.5%. The typical person here is 38 years old, which is noticeably younger than the state average. While the population is among the largest for its level, it has shrank by 20% since 2011.

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📍 Port Augusta, Urban Centre

Where Port Augusta sits — Total population

12,788 ▼ -19.9%
  • 1–2: 3 areas
  • 2–3: 0 areas
  • 3–5: 0 areas
  • 5–9: 0 areas
  • 9–16: 2 areas
  • 16–27: 1 area
  • 27–47: 2 areas
  • 47–81: 2 areas
  • 81–139: 14 areas
  • 139–241: 145 areas
  • 241–418: 340 areas
  • 418–723: 351 areas
  • 723–1,252: 304 areas
  • 1,252–2,168: 191 areas
  • 2,168–3,752: 181 areas
  • 3,752–6,495: 107 areas
  • 6,495–11,242: 69 areas
  • 11,242–19,459: 44 areas
  • 19,459–33,683: 31 areas
  • 33,683–58,304: 17 areas
  • 58,304–100,921: 8 areas
  • 100,921–174,689: 8 areas
  • 174,689–302,378: 4 areas
  • 302,378–523,401: 5 areas
  • 523,401–905,982: 2 areas
  • 905,982–1,568,210: 1 area
  • 1,568,210–2,714,494: 2 areas
  • 2,714,494–4,698,656: 2 areas

All urban centre areas, 2021. The marker is Port Augusta — higher than 86% of areas.

Total population compared with the state and national average
Port Augusta12,788
5700, SA 11,042
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The total population is 12,788, though this is about 3,179 people fewer than in 2011. The typical resident is 38, making the area noticeably younger than the state average of 41.

12,788 ▼ -19.9%

Higher than 86% of urban centre areas.

  • 2011: 15,967
  • 2016: 16,804
  • 2021: 12,788

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

38 yrs ▼ -2.6%

Younger than 75% of urban centre areas.

  • 2011: 39 yrs
  • 2016: 40 yrs
  • 2021: 38 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 18.4% of the population, which is about the same as the national figure. People aged 65 and over account for 17.7%, a figure that is a little below the state average.

17.7% ▼ -2.0%

Lower than 66% of urban centre areas.

  • 2011: 18.1%
  • 2016: 20.2%
  • 2021: 17.7%

Share of the population aged 65 years and over.

18.4% ▼ -2.9%

Higher than 56% of urban centre areas.

  • 2011: 18.9%
  • 2016: 17.4%
  • 2021: 18.4%

Share of the population aged under 15 years.

Age structure

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Port Augusta splits fairly evenly between Young adults (25–44) (28%) and Older adults (45–64) (25%), with Children (0–14) at 18%.

Identity & relationships

First Nations identity and marital status.

Indigenous identity has risen 16 points since 2011 to 21.5%, far above the national figure of 3.2%. People in de facto relationships are also well above the national average at 16.7%.

21.5% ▲ +298.6%

Higher than 87% of urban centre areas.

  • 2011: 5.4%
  • 2016: 5.1%
  • 2021: 21.5%

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

16.7% ▲ +51.2%

Higher than 79% of urban centre areas.

  • 2011: 11.0%
  • 2016: 11.2%
  • 2021: 16.7%

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

Marital status

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In Port Augusta, the largest group is Never married at 45%, followed by Married (36%) and Divorced (8%).

Age & sex structure

  • 85+: 85+: 97 males; 85+: 151 females
  • 80–84: 80–84: 140 males; 80–84: 150 females
  • 75–79: 75–79: 220 males; 75–79: 236 females
  • 70–74: 70–74: 336 males; 70–74: 313 females
  • 65–69: 65–69: 318 males; 65–69: 317 females
  • 60–64: 60–64: 423 males; 60–64: 381 females
  • 55–59: 55–59: 428 males; 55–59: 432 females
  • 50–54: 50–54: 372 males; 50–54: 427 females
  • 45–49: 45–49: 375 males; 45–49: 359 females
  • 40–44: 40–44: 357 males; 40–44: 336 females
  • 35–39: 35–39: 467 males; 35–39: 378 females
  • 30–34: 30–34: 567 males; 30–34: 426 females
  • 25–29: 25–29: 539 males; 25–29: 472 females
  • 20–24: 20–24: 391 males; 20–24: 334 females
  • 15–19: 15–19: 366 males; 15–19: 327 females
  • 10–14: 10–14: 394 males; 10–14: 401 females
  • 5–9: 5–9: 390 males; 5–9: 399 females
  • 0–4: 0–4: 400 males; 0–4: 363 females

Sources

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

More for Port Augusta

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Port Augusta [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/ucl/UCL413003/port-augusta/topic/demographics-identity