2101, NSW · Postcode

Demographics & Identity in 2101, NSW

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

Nearly half of the 19,885 people living in postcode 2101 are married, marking it as the most common relationship status in the area. This is an older community compared to the rest of the state, with a population that has grown by 11% over the last decade.

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📍 2101, NSW, Postcode

Where 2101, NSW sits — Total population

19,885 ▲ +10.6%
  • 1–2: 1 area
  • 2–2: 0 areas
  • 2–4: 0 areas
  • 4–5: 2 areas
  • 5–8: 3 areas
  • 8–12: 2 areas
  • 12–19: 2 areas
  • 19–29: 12 areas
  • 29–44: 19 areas
  • 44–67: 35 areas
  • 67–102: 30 areas
  • 102–155: 70 areas
  • 155–237: 97 areas
  • 237–360: 129 areas
  • 360–549: 158 areas
  • 549–836: 168 areas
  • 836–1,273: 181 areas
  • 1,273–1,938: 179 areas
  • 1,938–2,951: 157 areas
  • 2,951–4,493: 179 areas
  • 4,493–6,842: 176 areas
  • 6,842–10,418: 210 areas
  • 10,418–15,865: 268 areas
  • 15,865–24,158: 254 areas
  • 24,158–36,786: 182 areas
  • 36,786–56,016: 93 areas
  • 56,016–85,299: 28 areas
  • 85,299–129,888: 8 areas

All postcode areas, 2021. The marker is 2101, NSW — higher than 84% of areas.

Total population compared with the state and national average
2101, NSW19,885
Northern Beaches 263,554
New South Wales 8,072,163
Australia 25,422,788

Population

How many people, and the typical age.

The population reached 19,885 people in 2021, which is larger than about 84% of similar areas. Residents are noticeably older than the national figure, with a typical age of 43.

19,885 ▲ +10.6%

Higher than 84% of postcode areas.

  • 2011: 17,981
  • 2016: 19,395
  • 2021: 19,885

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

43 yrs ▲ +7.5%

Older than 52% of postcode areas.

  • 2011: 40 yrs
  • 2016: 42 yrs
  • 2021: 43 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 22.4% of the population, a figure that is well above the national average and has risen since 2011. Meanwhile, children under 15 make up 17.5%, which is about the same as the state and national figures.

22.4% ▲ +19.3%

Higher than 65% of postcode areas.

  • 2011: 18.8%
  • 2016: 20.5%
  • 2021: 22.4%

Share of the population aged 65 years and over.

17.5% ▼ -3.2%

Higher than 52% of postcode areas.

  • 2011: 18.0%
  • 2016: 18.4%
  • 2021: 17.5%

Share of the population aged under 15 years.

Age structure

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2101, NSW splits fairly evenly between Older adults (45–64) (26%) and Young adults (25–44) (24%), with Seniors (65+) at 22%.

Identity & relationships

First Nations identity and marital status.

About 1.1% of residents identify as Aboriginal or Torres Strait Islander, which is a little below the national figure. Those in de facto relationships make up 12.0% of the population, a rate that has risen slightly since 2011.

12.0% ▲ +18.4%

Lower than 55% of postcode areas.

  • 2011: 10.2%
  • 2016: 11.6%
  • 2021: 12.0%

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

Marital status

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In 2101, NSW, the largest group is Married at 47%, followed by Never married (32%) and Divorced (11%).

Age & sex structure

  • 85+: 85+: 356 males; 85+: 615 females
  • 80–84: 80–84: 327 males; 80–84: 356 females
  • 75–79: 75–79: 367 males; 75–79: 429 females
  • 70–74: 70–74: 468 males; 70–74: 530 females
  • 65–69: 65–69: 488 males; 65–69: 513 females
  • 60–64: 60–64: 570 males; 60–64: 577 females
  • 55–59: 55–59: 653 males; 55–59: 656 females
  • 50–54: 50–54: 627 males; 50–54: 668 females
  • 45–49: 45–49: 707 males; 45–49: 746 females
  • 40–44: 40–44: 626 males; 40–44: 686 females
  • 35–39: 35–39: 612 males; 35–39: 653 females
  • 30–34: 30–34: 538 males; 30–34: 605 females
  • 25–29: 25–29: 509 males; 25–29: 451 females
  • 20–24: 20–24: 491 males; 20–24: 454 females
  • 15–19: 15–19: 579 males; 15–19: 551 females
  • 10–14: 10–14: 615 males; 10–14: 571 females
  • 5–9: 5–9: 627 males; 5–9: 573 females
  • 0–4: 0–4: 554 males; 0–4: 543 females

Sources

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

More for 2101, NSW

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 2101, NSW [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA2101/2101-nsw/topic/demographics-identity