2105, NSW · Postcode

Demographics & Identity in 2105, NSW

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

A population aging by 7 years since 2011 marks the biggest shift in postcode 2105. This area is now far older than the national average, with a typical resident aged 52 and a quarter of the population being seniors. It is a small community of 2,008 people that has grown by 9.5% over the last decade.

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📍 2105, NSW, Postcode

Where 2105, NSW sits — Total population

2,008 ▲ +9.5%
  • 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 2105, NSW — lower than 59% of areas.

Total population compared with the state and national average
2105, NSW2,008
Northern Beaches 263,554
New South Wales 8,072,163
Australia 25,422,788

Population

How many people, and the typical age.

The typical resident is 52, which is far older than the national figure of 38. This population of 2,008 people is smaller than about 58% of similar areas.

2,008 ▲ +9.5%

Lower than 59% of postcode areas.

  • 2011: 1,834
  • 2016: 1,848
  • 2021: 2,008

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

52 yrs ▲ +15.6%

Older than 86% of postcode areas.

  • 2011: 45 yrs
  • 2016: 50 yrs
  • 2021: 52 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 25.2% of the area, well above the national figure of 17.2%. This trend is mirrored by a drop in children under 15, who now make up 13.6% of the population.

25.2% ▲ +58.1%

Higher than 76% of postcode areas.

  • 2011: 16.0%
  • 2016: 22.1%
  • 2021: 25.2%

Share of the population aged 65 years and over.

13.6% ▼ -26.8%

Lower than 82% of postcode areas.

  • 2011: 18.6%
  • 2016: 15.9%
  • 2021: 13.6%

Share of the population aged under 15 years.

Age structure

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In 2105, NSW, the largest group is Older adults (45–64) at 37%, followed by Seniors (65+) (25%) and Children (0–14) (14%).

Identity & relationships

First Nations identity and marital status.

Most people here are married, accounting for 56.5% of residents. Those in de facto relationships make up 12.3%, while the Aboriginal and Torres Strait Islander population is among the lowest for this level at 0.2%.

12.3% ▲ +48.8%

Lower than 52% of postcode areas.

  • 2011: 8.2%
  • 2016: 10.7%
  • 2021: 12.3%

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

Marital status

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In 2105, NSW, Married is the majority at 57%; Never married is next at 27%.

Age & sex structure

  • 85+: 85+: 15 males; 85+: 8 females
  • 80–84: 80–84: 37 males; 80–84: 30 females
  • 75–79: 75–79: 48 males; 75–79: 54 females
  • 70–74: 70–74: 88 males; 70–74: 76 females
  • 65–69: 65–69: 82 males; 65–69: 76 females
  • 60–64: 60–64: 93 males; 60–64: 92 females
  • 55–59: 55–59: 112 males; 55–59: 95 females
  • 50–54: 50–54: 95 males; 50–54: 111 females
  • 45–49: 45–49: 55 males; 45–49: 73 females
  • 40–44: 40–44: 38 males; 40–44: 48 females
  • 35–39: 35–39: 32 males; 35–39: 43 females
  • 30–34: 30–34: 16 males; 30–34: 29 females
  • 25–29: 25–29: 30 males; 25–29: 21 females
  • 20–24: 20–24: 51 males; 20–24: 32 females
  • 15–19: 15–19: 76 males; 15–19: 72 females
  • 10–14: 10–14: 72 males; 10–14: 51 females
  • 5–9: 5–9: 45 males; 5–9: 48 females
  • 0–4: 0–4: 30 males; 0–4: 29 females

Sources

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

More for 2105, NSW

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in 2105, NSW [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/poa/POA2105/2105-nsw/topic/demographics-identity