Semaphore South · Suburb / Locality

Demographics & Identity in Semaphore South

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

Nearly 30% of Semaphore South residents are older adults aged between 45 and 64. This makes the area notably older than the national average, with 1,031 people living in the neighborhood.

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📍 Semaphore South, Suburb / Locality

Where Semaphore South sits — Total population

1,031 ▲ +4.8%
  • 1–1: 689 areas
  • 1–2: 0 areas
  • 2–3: 119 areas
  • 3–5: 108 areas
  • 5–7: 243 areas
  • 7–11: 241 areas
  • 11–16: 514 areas
  • 16–24: 579 areas
  • 24–36: 898 areas
  • 36–53: 1059 areas
  • 53–79: 1168 areas
  • 79–117: 1203 areas
  • 117–174: 1171 areas
  • 174–258: 1010 areas
  • 258–384: 856 areas
  • 384–571: 670 areas
  • 571–850: 616 areas
  • 850–1,263: 567 areas
  • 1,263–1,879: 520 areas
  • 1,879–2,794: 590 areas
  • 2,794–4,154: 679 areas
  • 4,154–6,177: 585 areas
  • 6,177–9,186: 528 areas
  • 9,186–13,659: 405 areas
  • 13,659–20,311: 195 areas
  • 20,311–30,202: 96 areas
  • 30,202–44,910: 33 areas
  • 44,910–66,781: 10 areas

All suburb / locality areas, 2021. The marker is Semaphore South — higher than 73% of areas.

Total population compared with the state and national average
Semaphore South1,031
5019, SA 9,385
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The typical person here is 44, which is noticeably older than the typical resident in South Australia and Australia. This population size is larger than about 74% of similar areas.

1,031 ▲ +4.8%

Higher than 73% of suburb / locality areas.

  • 2011: 984
  • 2016: 1,019
  • 2021: 1,031

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

44 yrs ▲ +10.0%

Younger than 54% of suburb / locality areas.

  • 2011: 40 yrs
  • 2016: 43 yrs
  • 2021: 44 yrs

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

Age profile

How the population splits across age groups.

Seniors aged 65 and over make up 19.8% of the community, a figure slightly above the national average. Children under 15 account for 15.8% of residents, which is a little below the state and national figures.

19.8% ▲ +14.5%

Higher than 55% of suburb / locality areas.

  • 2011: 17.3%
  • 2016: 17.9%
  • 2021: 19.8%

Share of the population aged 65 years and over.

15.8% ▼ -10.1%

Lower than 59% of suburb / locality areas.

  • 2011: 17.6%
  • 2016: 16.9%
  • 2021: 15.8%

Share of the population aged under 15 years.

Age structure

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Semaphore South splits fairly evenly between Older adults (45–64) (30%) and Young adults (25–44) (25%), with Seniors (65+) at 20%.

Identity & relationships

First Nations identity and marital status.

De facto relationships are much more common here than in most areas, sitting well above both state and national figures at 15.5%. Aboriginal and Torres Strait Islander people make up 1.6% of the population.

1.6% ▲ +440.3%

Lower than 53% of suburb / locality areas.

  • 2011: 0.3%
  • 2016: 1.9%
  • 2021: 1.6%

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

15.5% ▲ +28.3%

Higher than 73% of suburb / locality areas.

  • 2011: 12.1%
  • 2016: 14.7%
  • 2021: 15.5%

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

Marital status

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Semaphore South splits fairly evenly between Married (43%) and Never married (38%), with Divorced at 11%.

Age & sex structure

  • 85+: 85+: 10 males; 85+: 23 females
  • 80–84: 80–84: 10 males; 80–84: 14 females
  • 75–79: 75–79: 15 males; 75–79: 15 females
  • 70–74: 70–74: 23 males; 70–74: 32 females
  • 65–69: 65–69: 29 males; 65–69: 32 females
  • 60–64: 60–64: 35 males; 60–64: 33 females
  • 55–59: 55–59: 42 males; 55–59: 48 females
  • 50–54: 50–54: 37 males; 50–54: 52 females
  • 45–49: 45–49: 31 males; 45–49: 33 females
  • 40–44: 40–44: 39 males; 40–44: 29 females
  • 35–39: 35–39: 28 males; 35–39: 30 females
  • 30–34: 30–34: 32 males; 30–34: 34 females
  • 25–29: 25–29: 26 males; 25–29: 35 females
  • 20–24: 20–24: 33 males; 20–24: 17 females
  • 15–19: 15–19: 24 males; 15–19: 24 females
  • 10–14: 10–14: 20 males; 10–14: 29 females
  • 5–9: 5–9: 31 males; 5–9: 25 females
  • 0–4: 0–4: 31 males; 0–4: 31 females

Sources

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

More for Semaphore South

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Semaphore South [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL41331/semaphore-south/topic/demographics-identity