Mount Barker · Council (LGA)

Demographics & Identity in Mount Barker

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

Nearly half of the 39,217 people in Mount Barker are married, reflecting a strong family focus in an area that has grown quickly. The population jumped by 32% since 2011, adding about 9,450 residents. This expansion has helped keep the community relatively young compared to many other similar areas.

Open map →
📍 Mount Barker, Council (LGA)

Where Mount Barker sits — Total population

39,217 ▲ +31.7%
  • 1–2: 3 areas
  • 2–3: 0 areas
  • 3–4: 0 areas
  • 4–7: 0 areas
  • 7–12: 2 areas
  • 12–20: 1 area
  • 20–33: 0 areas
  • 33–55: 1 area
  • 55–91: 0 areas
  • 91–150: 5 areas
  • 150–248: 3 areas
  • 248–409: 13 areas
  • 409–675: 22 areas
  • 675–1,115: 38 areas
  • 1,115–1,840: 37 areas
  • 1,840–3,038: 30 areas
  • 3,038–5,014: 40 areas
  • 5,014–8,276: 49 areas
  • 8,276–13,661: 54 areas
  • 13,661–22,550: 57 areas
  • 22,550–37,223: 43 areas
  • 37,223–61,442: 49 areas
  • 61,442–101,420: 39 areas
  • 101,420–167,409: 37 areas
  • 167,409–276,336: 31 areas
  • 276,336–456,137: 8 areas
  • 456,137–752,926: 2 areas
  • 752,926–1,242,825: 1 area

All council (lga) areas, 2021. The marker is Mount Barker — higher than 72% of areas.

Total population compared with the state and national average
Mount Barker39,217
Greater Adelaide 1,387,290
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population is growing fast, and the typical resident is 39 years old. This is a little younger than the South Australian figure of 41, though slightly older than the national typical age of 38.

39,217 ▲ +31.7%

Higher than 72% of council (lga) areas.

  • 2011: 29,767
  • 2016: 33,397
  • 2021: 39,217

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

39 yrs ▲ +2.6%

Younger than 67% of council (lga) areas.

  • 2011: 38 yrs
  • 2016: 39 yrs
  • 2021: 39 yrs

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

Age profile

How the population splits across age groups.

Families with children are common here, as the 19.5% of residents under 15 is a little above the national figure. Meanwhile, seniors aged 65 and over make up 17.7% of the population, which is a little below the state average.

17.7% ▲ +45.5%

Lower than 62% of council (lga) areas.

  • 2011: 12.2%
  • 2016: 15.4%
  • 2021: 17.7%

Share of the population aged 65 years and over.

19.5% ▼ -10.8%

Higher than 70% of council (lga) areas.

  • 2011: 21.9%
  • 2016: 20.2%
  • 2021: 19.5%

Share of the population aged under 15 years.

Age structure

View on map →

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

Identity & relationships

First Nations identity and marital status.

A small number of residents, 1.3%, identify as Aboriginal and Torres Strait Islander, which is much lower than most areas. De facto relationships are slightly more common here than across the state, accounting for 13.2% of the population.

1.3% ▲ +55.6%

Lower than 83% of council (lga) areas.

  • 2011: 0.8%
  • 2016: 1.1%
  • 2021: 1.3%

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

13.2% ▲ +18.9%

Higher than 58% of council (lga) areas.

  • 2011: 11.1%
  • 2016: 12.1%
  • 2021: 13.2%

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

Marital status

View on map →

In Mount Barker, the largest group is Married at 50%, followed by Never married (33%) and Divorced (10%).

Age & sex structure

  • 85+: 85+: 289 males; 85+: 450 females
  • 80–84: 80–84: 319 males; 80–84: 421 females
  • 75–79: 75–79: 619 males; 75–79: 682 females
  • 70–74: 70–74: 957 males; 70–74: 1,004 females
  • 65–69: 65–69: 1,055 males; 65–69: 1,146 females
  • 60–64: 60–64: 1,088 males; 60–64: 1,222 females
  • 55–59: 55–59: 1,178 males; 55–59: 1,248 females
  • 50–54: 50–54: 1,268 males; 50–54: 1,417 females
  • 45–49: 45–49: 1,237 males; 45–49: 1,385 females
  • 40–44: 40–44: 1,153 males; 40–44: 1,262 females
  • 35–39: 35–39: 1,251 males; 35–39: 1,377 females
  • 30–34: 30–34: 1,220 males; 30–34: 1,273 females
  • 25–29: 25–29: 1,176 males; 25–29: 1,244 females
  • 20–24: 20–24: 1,173 males; 20–24: 1,111 females
  • 15–19: 15–19: 1,164 males; 15–19: 1,176 females
  • 10–14: 10–14: 1,362 males; 10–14: 1,286 females
  • 5–9: 5–9: 1,309 males; 5–9: 1,204 females
  • 0–4: 0–4: 1,284 males; 0–4: 1,212 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/lga/LGA44550/mount-barker/topic/demographics-identity