Mount Barker · Statistical Area 2 (SA2)

Demographics & Identity in Mount Barker

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

A rapid 48% population jump since 2011 has seen Mount Barker grow to over 22,113 people. The area is noticeably younger than the South Australian average, with a typical resident aged 37. This growth is driven by a high proportion of young adults and children.

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📍 Mount Barker, Statistical Area 2 (SA2)

Where Mount Barker sits — Total population

22,113 ▲ +48.3%
  • 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 Mount Barker — higher than 92% of areas.

Total population compared with the state and national average
Mount Barker22,113
5251, SA 19,184
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

Mount Barker is among the largest areas at this level, with its population growing by about 7,198 people since 2011. The typical resident is 37, which is noticeably younger than the South Australian figure of 41.

22,113 ▲ +48.3%

Higher than 92% of statistical area 2 (sa2) areas.

  • 2011: 14,915
  • 2016: 17,365
  • 2021: 22,113

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

37 yrs ▲ +2.8%

Younger than 64% of statistical area 2 (sa2) areas.

  • 2011: 36 yrs
  • 2016: 37 yrs
  • 2021: 37 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 20.0% of the population, which is a little above the national figure. While the share of children has fallen slightly since 2011, the proportion of people aged 65 and over rose by 4.8 percentage points in that time.

17.2% ▲ +38.9%

Lower than 51% of statistical area 2 (sa2) areas.

  • 2011: 12.4%
  • 2016: 15.6%
  • 2021: 17.2%

Share of the population aged 65 years and over.

20.0% ▼ -10.3%

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

  • 2011: 22.3%
  • 2016: 21.0%
  • 2021: 20.0%

Share of the population aged under 15 years.

Age structure

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Mount Barker splits fairly evenly between Young adults (25–44) (27%) and Older adults (45–64) (23%), with Children (0–14) at 20%.

Identity & relationships

First Nations identity and marital status.

About 13.1% of residents are in a de facto relationship, which is higher than most areas. Meanwhile, the Aboriginal and Torres Strait Islander population is 1.5%, which is a little below the national figure.

1.5% ▲ +76.1%

Lower than 61% of statistical area 2 (sa2) areas.

  • 2011: 0.8%
  • 2016: 1.3%
  • 2021: 1.5%

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

13.1% ▲ +24.3%

Higher than 64% of statistical area 2 (sa2) areas.

  • 2011: 10.6%
  • 2016: 11.4%
  • 2021: 13.1%

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

Marital status

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In Mount Barker, the largest group is Married at 48%, followed by Never married (35%) and Divorced (9%).

Age & sex structure

  • 85+: 85+: 168 males; 85+: 258 females
  • 80–84: 80–84: 172 males; 80–84: 265 females
  • 75–79: 75–79: 326 males; 75–79: 439 females
  • 70–74: 70–74: 492 males; 70–74: 547 females
  • 65–69: 65–69: 531 males; 65–69: 607 females
  • 60–64: 60–64: 500 males; 60–64: 615 females
  • 55–59: 55–59: 544 males; 55–59: 627 females
  • 50–54: 50–54: 640 males; 50–54: 739 females
  • 45–49: 45–49: 664 males; 45–49: 759 females
  • 40–44: 40–44: 689 males; 40–44: 741 females
  • 35–39: 35–39: 729 males; 35–39: 791 females
  • 30–34: 30–34: 760 males; 30–34: 783 females
  • 25–29: 25–29: 769 males; 25–29: 784 females
  • 20–24: 20–24: 718 males; 20–24: 696 females
  • 15–19: 15–19: 674 males; 15–19: 669 females
  • 10–14: 10–14: 774 males; 10–14: 743 females
  • 5–9: 5–9: 746 males; 5–9: 694 females
  • 0–4: 0–4: 769 males; 0–4: 696 females

Sources

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

More for Mount Barker

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Mount Barker [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/401021007/mount-barker/topic/demographics-identity