St Peters - Marden · Statistical Area 2 (SA2)

Demographics & Identity in St Peters - Marden

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

Older residents are more common in St Peters - Marden, where the typical person is 41. This area has seen its population grow to 13,515 people, becoming noticeably older than the national average over the last decade.

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📍 St Peters - Marden, Statistical Area 2 (SA2)

Where St Peters - Marden sits — Total population

13,515 ▲ +3.5%
  • 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 St Peters - Marden — higher than 70% of areas.

Total population compared with the state and national average
St Peters - Marden13,515
5069, SA 8,387
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population grew by 3.5% since 2011, adding about 457 people. The typical resident is now 41, which is 2 years older than in 2011.

13,515 ▲ +3.5%

Higher than 70% of statistical area 2 (sa2) areas.

  • 2011: 13,058
  • 2016: 12,956
  • 2021: 13,515

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

41 yrs ▲ +5.1%

Older than 57% of statistical area 2 (sa2) areas.

  • 2011: 39 yrs
  • 2016: 40 yrs
  • 2021: 41 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 19.6% of the area, a figure that rose 4.0 points since 2011. This contributes to a lower proportion of children under 15, who make up 15.2% of the population—well below the national figure.

19.6% ▲ +25.6%

Higher than 63% of statistical area 2 (sa2) areas.

  • 2011: 15.6%
  • 2016: 17.0%
  • 2021: 19.6%

Share of the population aged 65 years and over.

15.2% ▼ -4.4%

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

  • 2011: 15.9%
  • 2016: 15.8%
  • 2021: 15.2%

Share of the population aged under 15 years.

Age structure

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St Peters - Marden splits fairly evenly between Young adults (25–44) (27%) and Older adults (45–64) (26%), with Seniors (65+) at 20%.

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 0.5% of the population, which is much lower than most areas. Nearly half of the residents are married, while those in de facto relationships make up 9.7%.

0.5% ▲ +5.8%

Lower than 88% of statistical area 2 (sa2) areas.

  • 2011: 0.5%
  • 2016: 0.6%
  • 2021: 0.5%

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

9.7% ▲ +21.3%

Lower than 74% of statistical area 2 (sa2) areas.

  • 2011: 8.0%
  • 2016: 8.8%
  • 2021: 9.7%

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

Marital status

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In St Peters - Marden, the largest group is Married at 48%, followed by Never married (36%) and Divorced (8%).

Age & sex structure

  • 85+: 85+: 162 males; 85+: 263 females
  • 80–84: 80–84: 140 males; 80–84: 193 females
  • 75–79: 75–79: 201 males; 75–79: 290 females
  • 70–74: 70–74: 320 males; 70–74: 346 females
  • 65–69: 65–69: 338 males; 65–69: 387 females
  • 60–64: 60–64: 442 males; 60–64: 430 females
  • 55–59: 55–59: 478 males; 55–59: 498 females
  • 50–54: 50–54: 413 males; 50–54: 479 females
  • 45–49: 45–49: 413 males; 45–49: 421 females
  • 40–44: 40–44: 384 males; 40–44: 399 females
  • 35–39: 35–39: 430 males; 35–39: 473 females
  • 30–34: 30–34: 494 males; 30–34: 473 females
  • 25–29: 25–29: 491 males; 25–29: 482 females
  • 20–24: 20–24: 430 males; 20–24: 424 females
  • 15–19: 15–19: 454 males; 15–19: 314 females
  • 10–14: 10–14: 379 males; 10–14: 375 females
  • 5–9: 5–9: 359 males; 5–9: 338 females
  • 0–4: 0–4: 307 males; 0–4: 285 females

Sources

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

More for St Peters - Marden

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in St Peters - Marden [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/401051019/st-peters-marden/topic/demographics-identity