Cairnlea · Statistical Area 2 (SA2)

Demographics & Identity in Cairnlea

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

A growing population of 10,038 people defines Cairnlea, where the typical resident is now 5 years older than they were in 2011. This area is generally younger than the national figure, with a strong presence of children and working-age adults.

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📍 Cairnlea, Statistical Area 2 (SA2)

Where Cairnlea sits — Total population

10,038 ▲ +13.6%
  • 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 Cairnlea — higher than 53% of areas.

Total population compared with the state and national average
Cairnlea10,038
3023, VIC 67,146
Victoria 6,503,491
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by 14% since 2011, adding about 1,199 people. The typical resident is 36, which is a little younger than the same figure for Victoria and Australia.

10,038 ▲ +13.6%

Higher than 53% of statistical area 2 (sa2) areas.

  • 2011: 8,839
  • 2016: 9,657
  • 2021: 10,038

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

36 yrs ▲ +16.1%

Younger than 71% of statistical area 2 (sa2) areas.

  • 2011: 31 yrs
  • 2016: 33 yrs
  • 2021: 36 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 19.2% of the population, which is higher than most areas. Conversely, the proportion of seniors aged 65 and over is 10.3%, a figure that is well below both the state and national levels.

10.3% ▲ +159.9%

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

  • 2011: 4.0%
  • 2016: 6.4%
  • 2021: 10.3%

Share of the population aged 65 years and over.

19.2% ▼ -22.0%

Higher than 65% of statistical area 2 (sa2) areas.

  • 2011: 24.7%
  • 2016: 22.7%
  • 2021: 19.2%

Share of the population aged under 15 years.

Age structure

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Cairnlea splits fairly evenly between Older adults (45–64) (28%) and Young adults (25–44) (27%), with Children (0–14) at 19%.

Identity & relationships

First Nations identity and marital status.

Over half the population is married, though the 5.3% of people in de facto relationships is among the lowest for similar areas. People of Aboriginal and Torres Strait Islander descent make up 0.2% of the community.

0.2% ▼ -6.1%

Lower than 99% of statistical area 2 (sa2) areas.

  • 2011: 0.2%
  • 2016: 0.1%
  • 2021: 0.2%

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

5.3% ▲ +11.7%

Lower than 95% of statistical area 2 (sa2) areas.

  • 2011: 4.7%
  • 2016: 5.4%
  • 2021: 5.3%

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

Marital status

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In Cairnlea, Married is the majority at 51%; Never married is next at 36%.

Age & sex structure

  • 85+: 85+: 28 males; 85+: 75 females
  • 80–84: 80–84: 34 males; 80–84: 31 females
  • 75–79: 75–79: 80 males; 75–79: 71 females
  • 70–74: 70–74: 143 males; 70–74: 142 females
  • 65–69: 65–69: 213 males; 65–69: 227 females
  • 60–64: 60–64: 295 males; 60–64: 290 females
  • 55–59: 55–59: 311 males; 55–59: 325 females
  • 50–54: 50–54: 346 males; 50–54: 403 females
  • 45–49: 45–49: 387 males; 45–49: 425 females
  • 40–44: 40–44: 345 males; 40–44: 399 females
  • 35–39: 35–39: 336 males; 35–39: 355 females
  • 30–34: 30–34: 292 males; 30–34: 300 females
  • 25–29: 25–29: 373 males; 25–29: 348 females
  • 20–24: 20–24: 391 males; 20–24: 370 females
  • 15–19: 15–19: 391 males; 15–19: 390 females
  • 10–14: 10–14: 345 males; 10–14: 356 females
  • 5–9: 5–9: 357 males; 5–9: 366 females
  • 0–4: 0–4: 275 males; 0–4: 236 females

Sources

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

More for Cairnlea

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Cairnlea [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/213011329/cairnlea/topic/demographics-identity