Largs Bay - Semaphore · Statistical Area 2 (SA2)

Demographics & Identity in Largs Bay - Semaphore

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

A typical resident in Largs Bay - Semaphore is 45, making the area noticeably older than both the state and national figures. This shift is part of a clear trend toward an older population, with the usual age rising by four years since 2011.

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📍 Largs Bay - Semaphore, Statistical Area 2 (SA2)

Where Largs Bay - Semaphore sits — Total population

14,807 ▲ +2.1%
  • 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 Largs Bay - Semaphore — higher than 75% of areas.

Total population compared with the state and national average
Largs Bay - Semaphore14,807
5016, SA 9,306
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population has grown by 2.1% since 2011 to reach 14,807 people, which is larger than about 76% of similar areas.

14,807 ▲ +2.1%

Higher than 75% of statistical area 2 (sa2) areas.

  • 2011: 14,505
  • 2016: 14,491
  • 2021: 14,807

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

45 yrs ▲ +9.8%

Older than 78% of statistical area 2 (sa2) areas.

  • 2011: 41 yrs
  • 2016: 43 yrs
  • 2021: 45 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 14.3% of the community, a figure well below the Australian average. Meanwhile, the proportion of people aged 65 and over rose by 4.7 points since 2011 to reach 18.8%.

18.8% ▲ +33.4%

Higher than 59% of statistical area 2 (sa2) areas.

  • 2011: 14.1%
  • 2016: 16.7%
  • 2021: 18.8%

Share of the population aged 65 years and over.

14.3% ▼ -11.9%

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

  • 2011: 16.2%
  • 2016: 14.8%
  • 2021: 14.3%

Share of the population aged under 15 years.

Age structure

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In Largs Bay - Semaphore, the largest group is Older adults (45–64) at 32%, followed by Young adults (25–44) (25%) and Seniors (65+) (19%).

Identity & relationships

First Nations identity and marital status.

About 15.1% of residents are in a de facto relationship, which is well above the state and national figures. Aboriginal and Torres Strait Islander people make up 3.0% of the population, a figure higher than most areas.

3.0% ▲ +21.1%

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

  • 2011: 2.4%
  • 2016: 2.9%
  • 2021: 3.0%

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

15.1% ▲ +12.4%

Higher than 81% of statistical area 2 (sa2) areas.

  • 2011: 13.5%
  • 2016: 14.2%
  • 2021: 15.1%

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

Marital status

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Largs Bay - Semaphore splits fairly evenly between Never married (40%) and Married (39%), with Divorced at 12%.

Age & sex structure

  • 85+: 85+: 141 males; 85+: 258 females
  • 80–84: 80–84: 93 males; 80–84: 170 females
  • 75–79: 75–79: 204 males; 75–79: 223 females
  • 70–74: 70–74: 361 males; 70–74: 389 females
  • 65–69: 65–69: 443 males; 65–69: 491 females
  • 60–64: 60–64: 606 males; 60–64: 638 females
  • 55–59: 55–59: 609 males; 55–59: 695 females
  • 50–54: 50–54: 579 males; 50–54: 645 females
  • 45–49: 45–49: 491 males; 45–49: 491 females
  • 40–44: 40–44: 445 males; 40–44: 458 females
  • 35–39: 35–39: 461 males; 35–39: 547 females
  • 30–34: 30–34: 496 males; 30–34: 501 females
  • 25–29: 25–29: 376 males; 25–29: 414 females
  • 20–24: 20–24: 381 males; 20–24: 392 females
  • 15–19: 15–19: 352 males; 15–19: 327 females
  • 10–14: 10–14: 379 males; 10–14: 344 females
  • 5–9: 5–9: 358 males; 5–9: 312 females
  • 0–4: 0–4: 387 males; 0–4: 340 females

Sources

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

More for Largs Bay - Semaphore

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Largs Bay - Semaphore [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/404021099/largs-bay-semaphore/topic/demographics-identity